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blue · cool

#41baff

a balanced, electric blue · cool · closest name: Deep Sky Blue

Token name suggestion: Atlas Denim

RGB
65, 186, 255
HSL
202°, 100%, 63%
CMYK
75, 27, 0, 0
Luminance
0.4346

#41baff is a balanced electric blue, 202° on the wheel and 97/100 on the cool side. Put black text on it (9.69:1). As text it scores 2.17:1 on white — use #007AC0 instead. Nearest name is Deep Sky Blue, nearest Tailwind family is sky.

hsl(202 100% 63%)rgb(65 186 255)Base step 400AAA inkCool

At a glance

Every number on this page in one read: what #41baff is made of, how bright it looks, and which way it leans.

Hex
#41baff
Hue
202°
blue
Saturation
100%
electric
Lightness
63%
balanced
Brightness
100%
HSV value
Perceived
67%
weighted brightness
Luminance
0.4346
WCAG relative
Temperature
Cool
97/100 cool
Color family
Blue
Tone
Electric
Best ink
Black
9.69:1
Closest name
Deep Sky Blue
ΔE2000 3.7
Chroma
44.9
LCH, 0–130ish
OKLCH L
0.752
perceptual lightness
Tailwind
sky
500 · ΔE 6.2
Web-safe
#33CCFF
nearest of 216
Where it sits
Hue202° of 360°
Saturation100%
Lightness63%
Saturation × lightness field

Left edge is grey, right edge is full chroma; top is white, bottom is black. The dot is #41baff.

Temperature
Warm ← → Cool97% cool

Reads cool. Warm and cool siblings keep the same lightness, so you can swap one in without redoing your contrast maths.

Luminance by channel
Red3%
Green81%
Blue17%

Green carries most of what the eye calls brightness — that is why WCAG weights it 0.7152.

Every format

HEX#41baff
HEX (8-digit)#41baffff
RGBrgb(65, 186, 255)
RGBArgba(65, 186, 255, 1)
HSLhsl(202, 100%, 63%)
HSV / HSBhsv(202, 75%, 100%)
HWBhwb(202 25% 0%)
CMYKcmyk(75%, 27%, 0%, 0%)
LABlab(71.9 -11.1 -43.5)
LCHlch(71.9 44.9 255.7)
OKLCHoklch(0.752 0.144 238.5)
XYZ (D65)xyz(37.78, 43.46, 100.99)
Decimal4307711
Display P3color(display-p3 0.255 0.729 1.000)
Web-safe#33CCFF

Copy-ready code

every platformclick to select
/* CSS */
color: #41baff;
background-color: #41baff;
/* CSS custom property */
--brand: #41baff;
/* Tailwind (arbitrary) */
class="text-[#41baff] bg-[#41baff]"
/* SCSS */
$brand: #41baff;
/* SwiftUI */
Color(red: 0.255, green: 0.729, blue: 1.000)
/* UIKit */
UIColor(red: 0.255, green: 0.729, blue: 1.000, alpha: 1)
/* Android XML */
<color name="brand">#41BAFF</color>
/* Android Compose */
Color(0xFF41BAFF)
/* Flutter */
Color(0xFF41BAFF)
/* Python / OpenCV (BGR) */
(255, 186, 65)
/* Python / PIL (RGB) */
(65, 186, 255)
/* Java AWT */
new Color(65, 186, 255)
/* .NET */
Color.FromArgb(255, 65, 186, 255)
/* OpenGL / Unity (0–1) */
(0.2549f, 0.7294f, 1.0000f, 1f)
/* LaTeX */
\definecolor{brand}{RGB}{65,186,255}
modern cssclick to select
/* mix without leaving CSS */
background: color-mix(in oklab, #41baff 85%, white);
border-color: color-mix(in oklab, #41baff 40%, transparent);
/* theme-aware in one line */
color: light-dark(#005180, #D3E4EE);
/* relative colour syntax */
--hover: hsl(from #41baff h s calc(l - 7));

Design tokens

The same ramp in the four formats a team actually needs. Paste one and the whole palette lands with it.

css custom propertiesclick to select
:root {
  --brand-50: #F1F9FE;
  --brand-100: #E3F3FC;
  --brand-200: #C0E6FC;
  --brand-300: #8FD6FF;
  --brand-400: #41baff;
  --brand-500: #1FADFF;
  --brand-600: #009CF5;
  --brand-700: #0082CC;
  --brand-800: #0068A3;
  --brand-900: #054D76;
  --brand-950: #033049;
  --brand: #41baff;
  --brand-ink: #000000;
  --brand-surface: #F4F8FA;
  --brand-border: #C0DCED;
  --brand-hover: #1DADFF;
  --brand-pressed: #009EF8;
}
@media (prefers-color-scheme: dark) {
  :root {
    --brand-surface: #141E24;
    --brand-ink: #D3E4EE;
  }
}
tailwind.config.jsclick to select
theme: {
  extend: {
    colors: {
      brand: {
        50: '#F1F9FE',
        100: '#E3F3FC',
        200: '#C0E6FC',
        300: '#8FD6FF',
        400: '#41baff',
        500: '#1FADFF',
        600: '#009CF5',
        700: '#0082CC',
        800: '#0068A3',
        900: '#054D76',
        950: '#033049',
        DEFAULT: '#41baff',
      },
    },
  },
}
scss mapclick to select
$brand: (
  '50': #F1F9FE,
  '100': #E3F3FC,
  '200': #C0E6FC,
  '300': #8FD6FF,
  '400': #41baff,
  '500': #1FADFF,
  '600': #009CF5,
  '700': #0082CC,
  '800': #0068A3,
  '900': #054D76,
  '950': #033049,
);
$brand-base: #41baff;
$brand-ink: #000000;

@function brand($step) { @return map-get($brand, $step); }
w3c design tokens (json)click to select
{
  "color": {
    "brand": {
      "50": { "$value": "#F1F9FE", "$type": "color" },
      "100": { "$value": "#E3F3FC", "$type": "color" },
      "200": { "$value": "#C0E6FC", "$type": "color" },
      "300": { "$value": "#8FD6FF", "$type": "color" },
      "400": { "$value": "#41baff", "$type": "color" },
      "500": { "$value": "#1FADFF", "$type": "color" },
      "600": { "$value": "#009CF5", "$type": "color" },
      "700": { "$value": "#0082CC", "$type": "color" },
      "800": { "$value": "#0068A3", "$type": "color" },
      "900": { "$value": "#054D76", "$type": "color" },
      "950": { "$value": "#033049", "$type": "color" }
    },
    "brandInk": { "$value": "#000000", "$type": "color" }
  }
}

Best text color

Only one of black and white can be right. This is the one, with the number that proves it.

Readable at a glance#000000 on #41baff · 9.69:1
Use #000000AAA at every size.
Aa
12px
Aa
16px
Aa
24px
Aa
White text · 2.17:1
AA fail · AA large fail · AAA fail
Aa
Black text · 9.69:1 · recommended
AA pass · AA large pass · AAA pass
Reading the other direction: #41baff as text scores 2.17:1 on white and 9.69:1 on black.
Best tinted ink on it, if plain black or white feels flat: #005180 at 3.89:1.

Make it accessible

A contrast checker tells you that you failed. This tells you what to ship instead — same hue, same saturation, lightness moved only as far as WCAG demands.

The quick fox
#007AC0 · 4.62:1
AA on white−25% L
#007AC0
The quick fox
#005D92 · 7.05:1
AAA on white−34% L
#005D92
The quick fox
#41baff · 9.69:1
AA on blackalready passes
#41baff
The quick fox
#41baff · 9.69:1
AAA on blackalready passes
#41baff

Large text — 24px regular or 18.66px bold and above — only needs 3:1, so #009BF3 is enough for headings on white. Non-text elements such as icons, chart strokes and focus rings also sit at 3:1 under WCAG 2.2 (1.4.11).

Accessibility — WCAG contrast

Aa
#41baff on white: 2.17:1
AA ✗ fail · AA-large · AAA
Aa
#41baff on black: 9.69:1
AA ✓ pass · AA-large · AAA
Against the neutral ladder

Contrast is symmetric, so each row covers both directions: #41baff as text on that neutral, and that neutral as text on #41baff.

NeutralRatioBoth directions
White2.17:1AaAa
Slate 502.07:1AaAa
Slate 1001.98:1AaAa
Slate 2001.76:1AaAa
Slate 3001.46:1AaAa
Slate 4001.18:1AaAa
Slate 5002.20:1AaAa
Slate 6003.50:1AaAa
Slate 7004.78:1AaAa
Slate 8006.75:1AaAa
Slate 9008.24:1AaAa
Black9.69:1AaAa
Colour vision deficiency
true color
protanopia · #99BAFF
deuteranopia · #80A8FE
tritanopia · #00CBD2

Roughly one man in twelve has some form of colour vision deficiency. If any of the three panels above is hard to tell apart from a neighbouring colour in your palette, add a shape, an icon or a label so the meaning does not rest on hue alone.

Color scale — 50 to 950

A Tailwind-shaped ramp built around this exact hex. #41baff is pinned to step 400; the rest hold its hue and let saturation ease off at the extremes so the pale end never turns neon.

#F1F9FE
#E3F3FC
#C0E6FC
#8FD6FF
#41baff
#1FADFF
#009CF5
#0082CC
#0068A3
#054D76
#033049
Base = 400Lightest = 50 · #F1F9FEDarkest = 950 · #033049Text step on white = 800
Perceptual ramp — OKLCH

The same eleven steps expressed in OKLCH, where equal lightness numbers actually look equally spaced. HSL ramps go muddy in the yellows and washed out in the blues; this one does not. Modern browsers render it natively — the hex ramp above is the fallback.

50100200300400500600700800900950
oklch tokensclick to select
:root {
  --brand-50: oklch(0.97 0.036 238.5);
  --brand-100: oklch(0.94 0.058 238.5);
  --brand-200: oklch(0.88 0.087 238.5);
  --brand-300: oklch(0.80 0.113 238.5);
  --brand-400: oklch(0.72 0.133 238.5);
  --brand-500: oklch(0.64 0.144 238.5);
  --brand-600: oklch(0.56 0.144 238.5);
  --brand-700: oklch(0.48 0.136 238.5);
  --brand-800: oklch(0.40 0.121 238.5);
  --brand-900: oklch(0.32 0.101 238.5);
  --brand-950: oklch(0.24 0.079 238.5);
}

Colors that work with #41baff

Not a palette — a role sheet. Each swatch answers one question you will hit while building the component.

Text on it#000000
Black wins here
Surface#F4F8FA
Tinted page background
Border#C0DCED
Hairlines and dividers
Muted text#4B7E9B
Captions on the surface
Accent#CC1600
Second voice, not a rival
Dark variant#005180
Hover, pressed, headers
Light variant#E5F6FF
Selected rows, tints
Dark surface#141E24
Dark-mode background
Hover#1DADFF
One step down in lightness
Pressed#009EF8
Two steps down
Disabled#CFDAE1
Chroma pulled out
Focus ring#55C1FF
Offset from the fill so it reads
Light mode
Everything in its place

Surface, border, heading and body all derive from this one hue, so the screen stays coherent without a second palette.

Primary actionSecondaryBadge
Dark mode
Same hue, inverted

Lightness flips, hue holds. The accent stays the anchor in both themes.

Primary actionSecondaryAccent

In real components

The same eight roles, wired into the interface patterns you will actually build with them. Every state below is a computed value, not a mock-up.

Buttons and states
Save changesHoverPressedDisabled
OutlineSubtleLinkFocused
Form field
you@company.com

Focus ring uses the light variant so the field still reads as one shape.

Send me product updates
Notice
Your export is ready

The file stays available for seven days. Download it before it expires.

NewBetaDraft
Data
Storage used68%
Acme LtdActive
NorthwindTrial
GlobexActive

How to use #41baff

Derived from its contrast, chroma and lightness — not from taste.

Works well for
  • Text and icons on dark surfaces
  • Primary buttons and calls to action
  • Focus rings, active and selected states
  • Brand accents, badges and data highlights
  • Chart series and data categories
Use with care
  • Text of any size on white — fails WCAG AA
  • Full-page backgrounds — tiring over long sessions
  • Pairing with a same-lightness hue — edges vibrate
Minimum size as text on white
Not as text
Safe as a fill behind white type
No — use #005180
Safe as a 1px border on white
No — use #009BF3

Meaning and mood

What a colour in this family tends to signal, and how this particular chroma and lightness change the reading.

trustedcalmcompetentcorporate

The default of institutions for a reason: blue is read as stable and safe across nearly every culture that has been surveyed.

At this chroma the association is amplified — it will dominate anything placed beside it, so give it space and use it sparingly. The mid lightness keeps it versatile in both themes.

Worth knowing

It is also the most crowded hue on the web. Distinctiveness has to come from your other choices.

Reads as
  • FormalityLow
  • EnergyHigh
  • Weight37/100
  • TemperatureCool
  • ApproachabilityReserved

Colour associations are cultural and vary by market. Treat these as a starting point for a conversation with your audience, not a finding about them.

Similar colors

One move away from this hex in each direction. Every swatch is its own page.

Color relationships

The wheel positions with their names attached, so you can grab the one you actually need.

Complementary#FF8641
Analogous left#41FFE5
Analogous right#415BFF
Split-complement 1#FF415B
Split-complement 2#FFE541
Triadic 1#FF41BA
Triadic 2#BAFF41
Tetradic#E541FF
On the wheel
Base+30°−30°+120°+240°+180°202°

#41baff sits at 202°. Every dot is a harmony position and links to its own page in the table alongside.

RGB percentages

Red25.5%
Green72.9%
Blue100.0%
R · 0–255
65
0x41
G · 0–255
186
0xba
B · 0–255
255
0xff

CMYK percentages

Cyan74.5%
Magenta27.1%
Yellow0.0%
Key (black)0.0%

Total ink coverage is 102%. Most commercial presses cap around 300% — above that, sheets stop drying properly.

Color previews

#41baff text on a black background

contrast 9.69:1

Card sample

#41baff text on a white background

contrast 2.17:1

Card sample

#41baff on grey

1.98:1

#41baff on its own surface

2.03:1

#41baff on its dark surface

7.81:1

CSS3 live lab

Text font color

The quick brown fox

color: #41baff;
Background color
Panel with #41baff background
background-color: #41baff;
Text shadow — hex

Glowing headline

text-shadow: 2px 2px 8px #41baff;
Text shadow — RGB

Soft neon halo

text-shadow: 0 0 14px rgba(65, 186, 255, 0.45);
Div box shadow
Elevated card
box-shadow: 0 12px 32px -8px rgba(65, 186, 255, 0.45);
Border & gradient
Gradient panel
border: 3px solid #41baff;
background: linear-gradient(135deg, #41baff, #4641FF);
Gradient text

Gradient headline

background: linear-gradient(90deg, #41baff, #7641FF);
-webkit-background-clip: text;
color: transparent;
Focus ring
Focused control
outline: 2px solid #41baff;
outline-offset: 3px;
Underline & caret

Marked up text

text-decoration-color: #41baff;
caret-color: #41baff;
Left rule
Pull quote or callout
border-left: 4px solid #41baff;
Ring + tint
Selected chip
background: #E5F6FF;
box-shadow: inset 0 0 0 2px #41baff;
Conic badge
68%
background: conic-gradient(#41baff 68%, #e2e8f0 0);

Transparency

What each alpha value actually composites to. The top row is #41baff over white; the bottom row is the same alpha over a checkerboard, so you can see what survives on a photo or a video.

Bottom row of hexes is the flattened result over white — use those when a design tool refuses transparency, or when you need a solid fallback.

alpha in every syntaxclick to select
rgba(65, 186, 255, 0.5)
rgb(65 186 255 / 50%)
#41baff80
hsl(202 100% 63% / 50%)
color-mix(in srgb, #41baff 50%, transparent)
Alpha8-digit hexFlat on white
10%#41baff1a#ECF8FF
20%#41baff33#D9F1FF
40%#41baff66#B3E3FF
60%#41baff99#8DD6FF
80%#41baffcc#67C8FF

Gradients from #41baff

Six recipes, each built from this hex and shown with the exact CSS that produced it.

Elevation
Same hue, three lightnesses — safe anywhere
background: linear-gradient(135deg, #7ED0FF, #41baff 45%, #005180);
Duotone
A short hue run reads richer than a flat fill
background: linear-gradient(120deg, #41baff, #3B22FF);
Complement sweep
Loud — keep it behind large type only
background: linear-gradient(90deg, #41baff, #FF8641);
Spotlight
Hero panels and app headers
background: radial-gradient(120% 120% at 20% 0%, #9DDBFF 0%, #41baff 45%, #005180 100%);
Soft wash
Section backgrounds that stay readable
background: linear-gradient(180deg, #F4F8FA, #ffffff);
Mesh
Ambient background, no image weight
background: radial-gradient(60% 60% at 15% 20%, #74FFE0 0%, transparent 60%), radial-gradient(55% 55% at 85% 15%, #5F68FF 0%, transparent 60%), radial-gradient(70% 70% at 50% 95%, #005180 0%, transparent 65%), #41baff;

Monochromatic scale

Palettes built from #41baff

Shades — darker

Tints — lighter

Tones — desaturated

Color harmonies

Nearest named colors

Ranked with CIEDE2000 across all 139 CSS keywords. Under ΔE 2 the eye stops telling them apart; over ΔE 10 they are plainly different colors.

#41baff in the real world

Where a color in this family tends to land, and the interface roles it is usually asked to play.

Industries
TechnologyFinanceHealthcareEnterprise SaaS
Common UI roles
ButtonsLinksFocus statesCharts
Print note

Sits outside most CMYK gamuts — expect a duller press result, or specify a spot ink.

On screens

Holds up across typical panel gamma. Still worth checking on an uncalibrated laptop, where mid-tones shift most.

In dark mode

Usable as-is on a dark surface at 9.69:1.

Explore nearby colors

Small, deliberate steps away from this hex — useful when you are hunting for the version of a colour that finally feels right.

#41baff, answered

What color is #41baff?

#41baff is a balanced electric blue, closest to Deep Sky Blue (ΔE2000 3.7). It sits at 202° on the hue wheel with 100% saturation and 63% lightness, which reads as cool.

What is the RGB value of #41baff?

rgb(65, 186, 255) — 65 red, 186 green and 255 blue out of 255, or 25.5% / 72.9% / 100% by channel.

What is #41baff in HSL and HSV?

hsl(202, 100%, 63%) and hsv(202, 75%, 100%). HSL is what CSS takes; HSV is what your design tool's picker shows, which is why the saturation numbers rarely match.

Is #41baff a light or a dark color?

It is a mid-tone. Relative luminance is 0.4346 and perceived brightness is 67%, so black text on it reaches 9.69:1.

Should I use black or white text on #41baff?

Black. It scores 9.69:1 against #41baff, versus 2.17:1 for white — AAA at any size.

Is #41baff accessible on a white background?

#41baff on white scores 2.17:1, which fails WCAG AA at every size. Darken it to #007AC0 to reach 4.5:1, or #005D92 for 7:1.

What is the complementary color of #41baff?

#FF8641 sits directly opposite on the wheel. Softer options are the split-complements #FF415B and #FFE541, which give the same contrast with far less vibration.

What colors go well with #41baff?

For interface work: #F4F8FA as the surface, #C0DCED for borders, #4B7E9B for secondary text, #CC1600 as an accent and #005180 for hover and pressed states. For a palette, the analogous pair #41FFE5 and #415BFF stays calm, while #FF8641 is the loudest partner.

What is #41baff in CMYK for printing?

cmyk(75%, 27%, 0%, 0%). This is a screen-to-ink approximation — a color this saturated sits outside most CMYK gamuts and will print duller than it looks here.

Is #41baff warm or cool?

Cool — it scores 97 on a scale where 0 is the warmest orange and 100 the coolest azure. Nudged warmer it becomes #41FFFE; nudged cooler, #279FFF.

Which Tailwind color is closest to #41baff?

The sky family — its 500 step is #0ea5e9, ΔE2000 6.2 away. That is a visible difference, so define #41baff as a custom token rather than reaching for the built-in.

How do I use #41baff in Tailwind CSS?

Inline it as an arbitrary value with bg-[#41baff] or text-[#41baff], or register the whole ramp under theme.extend.colors.brand so you get bg-brand-500 and friends. The generated 50–950 scale on this page is ready to paste into your config.

What is #41baff with 50% opacity?

rgba(65, 186, 255, 0.5), or #41baff80 in eight-digit hex. Over white that composites to #A0DDFF; over black, #215D80.

Is #41baff a web-safe color?

No. The nearest web-safe colour is #33CCFF, ΔE2000 7.4 away. The palette only matters for legacy displays and some email clients now.

What does the color #41baff mean?

As a blue, it reads trusted, calm, competent. The default of institutions for a reason: blue is read as stable and safe across nearly every culture that has been surveyed. At this chroma the effect is amplified — it will dominate whatever sits beside it.

What gradient works with #41baff?

The safest is same-hue elevation: linear-gradient(135deg, #7ED0FF, #41baff 45%, #005180). For more colour, a short hue run to #3B22FF keeps it rich without turning muddy.

Work with #41baff in the Color Lab

Every tool opens with this colour already loaded.

Every value on this page is computed from #41baff at request time — conversions, contrast ratios and ΔE distances are calculated, never looked up.