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blue · cool

#199cf2

a balanced, electric blue · cool · closest name: Dodger Blue

Token name suggestion: Signal Harbour

RGB
25, 156, 242
HSL
204°, 89%, 52%
CMYK
90, 36, 0, 5
Luminance
0.3039

#199cf2 is a balanced electric blue, 204° on the wheel and 97/100 on the cool side. Put black text on it (7.08:1). As text it scores 2.97:1 on white — use #0B7AC3 instead. Nearest name is Dodger Blue, nearest Tailwind family is sky.

hsl(204 89% 52%)rgb(25 156 242)Base step 500AAA inkCool

At a glance

Every number on this page in one read: what #199cf2 is made of, how bright it looks, and which way it leans.

Hex
#199cf2
Hue
204°
blue
Saturation
89%
electric
Lightness
52%
balanced
Brightness
95%
HSV value
Perceived
57%
weighted brightness
Luminance
0.3039
WCAG relative
Temperature
Cool
97/100 cool
Color family
Blue
Tone
Electric
Best ink
Black
7.08:1
Closest name
Dodger Blue
ΔE2000 5.4
Chroma
52.1
LCH, 0–130ish
OKLCH L
0.670
perceptual lightness
Tailwind
sky
500 · ΔE 4.8
Web-safe
#0099FF
nearest of 216
Where it sits
Hue204° of 360°
Saturation89%
Lightness52%
Saturation × lightness field

Left edge is grey, right edge is full chroma; top is white, bottom is black. The dot is #199cf2.

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
Red1%
Green78%
Blue21%

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

Every format

HEX#199cf2
HEX (8-digit)#199cf2ff
RGBrgb(25, 156, 242)
RGBArgba(25, 156, 242, 1)
HSLhsl(204, 89%, 52%)
HSV / HSBhsv(204, 90%, 95%)
HWBhwb(204 10% 5%)
CMYKcmyk(90%, 36%, 0%, 5%)
LABlab(62.0 -2.3 -52.1)
LCHlch(62.0 52.1 267.5)
OKLCHoklch(0.670 0.164 245.4)
XYZ (D65)xyz(28.31, 30.39, 88.36)
Decimal1678578
Display P3color(display-p3 0.098 0.612 0.949)
Web-safe#0099FF

Copy-ready code

every platformclick to select
/* CSS */
color: #199cf2;
background-color: #199cf2;
/* CSS custom property */
--brand: #199cf2;
/* Tailwind (arbitrary) */
class="text-[#199cf2] bg-[#199cf2]"
/* SCSS */
$brand: #199cf2;
/* SwiftUI */
Color(red: 0.098, green: 0.612, blue: 0.949)
/* UIKit */
UIColor(red: 0.098, green: 0.612, blue: 0.949, alpha: 1)
/* Android XML */
<color name="brand">#199CF2</color>
/* Android Compose */
Color(0xFF199CF2)
/* Flutter */
Color(0xFF199CF2)
/* Python / OpenCV (BGR) */
(242, 156, 25)
/* Python / PIL (RGB) */
(25, 156, 242)
/* Java AWT */
new Color(25, 156, 242)
/* .NET */
Color.FromArgb(255, 25, 156, 242)
/* OpenGL / Unity (0–1) */
(0.0980f, 0.6118f, 0.9490f, 1f)
/* LaTeX */
\definecolor{brand}{RGB}{25,156,242}
modern cssclick to select
/* mix without leaving CSS */
background: color-mix(in oklab, #199cf2 85%, white);
border-color: color-mix(in oklab, #199cf2 40%, transparent);
/* theme-aware in one line */
color: light-dark(#074C79, #D3E3EE);
/* relative colour syntax */
--hover: hsl(from #199cf2 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: #F2F8FD;
  --brand-100: #E5F2FB;
  --brand-200: #C4E3F8;
  --brand-300: #95D1F9;
  --brand-400: #60BAF6;
  --brand-500: #199cf2;
  --brand-600: #0D91E8;
  --brand-700: #0B79C1;
  --brand-800: #09619A;
  --brand-900: #0B486F;
  --brand-950: #072D46;
  --brand: #199cf2;
  --brand-ink: #000000;
  --brand-surface: #F4F8FA;
  --brand-border: #C0DBED;
  --brand-hover: #0C89DB;
  --brand-pressed: #0A74B9;
}
@media (prefers-color-scheme: dark) {
  :root {
    --brand-surface: #141E24;
    --brand-ink: #D3E3EE;
  }
}
tailwind.config.jsclick to select
theme: {
  extend: {
    colors: {
      brand: {
        50: '#F2F8FD',
        100: '#E5F2FB',
        200: '#C4E3F8',
        300: '#95D1F9',
        400: '#60BAF6',
        500: '#199cf2',
        600: '#0D91E8',
        700: '#0B79C1',
        800: '#09619A',
        900: '#0B486F',
        950: '#072D46',
        DEFAULT: '#199cf2',
      },
    },
  },
}
scss mapclick to select
$brand: (
  '50': #F2F8FD,
  '100': #E5F2FB,
  '200': #C4E3F8,
  '300': #95D1F9,
  '400': #60BAF6,
  '500': #199cf2,
  '600': #0D91E8,
  '700': #0B79C1,
  '800': #09619A,
  '900': #0B486F,
  '950': #072D46,
);
$brand-base: #199cf2;
$brand-ink: #000000;

@function brand($step) { @return map-get($brand, $step); }
w3c design tokens (json)click to select
{
  "color": {
    "brand": {
      "50": { "$value": "#F2F8FD", "$type": "color" },
      "100": { "$value": "#E5F2FB", "$type": "color" },
      "200": { "$value": "#C4E3F8", "$type": "color" },
      "300": { "$value": "#95D1F9", "$type": "color" },
      "400": { "$value": "#60BAF6", "$type": "color" },
      "500": { "$value": "#199cf2", "$type": "color" },
      "600": { "$value": "#0D91E8", "$type": "color" },
      "700": { "$value": "#0B79C1", "$type": "color" },
      "800": { "$value": "#09619A", "$type": "color" },
      "900": { "$value": "#0B486F", "$type": "color" },
      "950": { "$value": "#072D46", "$type": "color" }
    },
    "brandInk": { "$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 #199cf2 · 7.08:1
Use #000000AAA at every size.
Aa
12px
Aa
16px
Aa
24px
Aa
White text · 2.97:1
AA fail · AA large fail · AAA fail
Aa
Black text · 7.08:1 · recommended
AA pass · AA large pass · AAA pass
Reading the other direction: #199cf2 as text scores 2.97:1 on white and 7.08:1 on black.
Best tinted ink on it, if plain black or white feels flat: #074C79 at 3.05:1.

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
#0B7AC3 · 4.58:1
AA on white−12% L
#0B7AC3
The quick fox
#085C93 · 7.09:1
AAA on white−22% L
#085C93
The quick fox
#199cf2 · 7.08:1
AA on blackalready passes
#199cf2
The quick fox
#199cf2 · 7.08:1
AAA on blackalready passes
#199cf2

Large text — 24px regular or 18.66px bold and above — only needs 3:1, so #149AF2 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
#199cf2 on white: 2.97:1
AA ✗ fail · AA-large · AAA
Aa
#199cf2 on black: 7.08:1
AA ✓ pass · AA-large · AAA
Against the neutral ladder

Contrast is symmetric, so each row covers both directions: #199cf2 as text on that neutral, and that neutral as text on #199cf2.

NeutralRatioBoth directions
White2.97:1AaAa
Slate 502.84:1AaAa
Slate 1002.71:1AaAa
Slate 2002.41:1AaAa
Slate 3002.00:1AaAa
Slate 4001.16:1AaAa
Slate 5001.60:1AaAa
Slate 6002.55:1AaAa
Slate 7003.49:1AaAa
Slate 8004.93:1AaAa
Slate 9006.02:1AaAa
Black7.08:1AaAa
Colour vision deficiency
true color
protanopia · #72A0F6
deuteranopia · #538DF0
tritanopia · #00B1BB

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. #199cf2 is pinned to step 500; the rest hold its hue and let saturation ease off at the extremes so the pale end never turns neon.

#F2F8FD
#E5F2FB
#C4E3F8
#95D1F9
#60BAF6
#199cf2
#0D91E8
#0B79C1
#09619A
#0B486F
#072D46
Base = 500Lightest = 50 · #F2F8FDDarkest = 950 · #072D46Text step on white = 700
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 0.041 245.4);
  --brand-100: oklch(0.94 0.065 245.4);
  --brand-200: oklch(0.88 0.098 245.4);
  --brand-300: oklch(0.80 0.128 245.4);
  --brand-400: oklch(0.72 0.150 245.4);
  --brand-500: oklch(0.64 0.164 245.4);
  --brand-600: oklch(0.56 0.164 245.4);
  --brand-700: oklch(0.48 0.154 245.4);
  --brand-800: oklch(0.40 0.137 245.4);
  --brand-900: oklch(0.32 0.114 245.4);
  --brand-950: oklch(0.24 0.090 245.4);
}

Colors that work with #199cf2

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#C0DBED
Hairlines and dividers
Muted text#4B7B9B
Captions on the surface
Accent#F73614
Second voice, not a rival
Dark variant#074C79
Hover, pressed, headers
Light variant#E7F5FE
Selected rows, tints
Dark surface#141E24
Dark-mode background
Hover#0C89DB
One step down in lightness
Pressed#0A74B9
Two steps down
Disabled#AFC1CC
Chroma pulled out
Focus ring#21A7FE
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 #199cf2

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 #074C79
Safe as a 1px border on white
No — use #149AF2

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
  • Weight48/100
  • 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#F26F19
Analogous left#19F2DC
Analogous right#1930F2
Split-complement 1#F21930
Split-complement 2#F2DC19
Triadic 1#F2199C
Triadic 2#9CF219
Tetradic#DC19F2
On the wheel
Base+30°−30°+120°+240°+180°204°

#199cf2 sits at 204°. Every dot is a harmony position and links to its own page in the table alongside.

RGB percentages

Red9.8%
Green61.2%
Blue94.9%
R · 0–255
25
0x19
G · 0–255
156
0x9c
B · 0–255
242
0xf2

CMYK percentages

Cyan89.7%
Magenta35.5%
Yellow0.0%
Key (black)5.1%

Total ink coverage is 130%. Most commercial presses cap around 300% — above that, sheets stop drying properly.

Color previews

#199cf2 text on a black background

contrast 7.08:1

Card sample

#199cf2 text on a white background

contrast 2.97:1

Card sample

#199cf2 on grey

2.71:1

#199cf2 on its own surface

2.78:1

#199cf2 on its dark surface

5.70:1

CSS3 live lab

Text font color

The quick brown fox

color: #199cf2;
Background color
Panel with #199cf2 background
background-color: #199cf2;
Text shadow — hex

Glowing headline

text-shadow: 2px 2px 8px #199cf2;
Text shadow — RGB

Soft neon halo

text-shadow: 0 0 14px rgba(25, 156, 242, 0.45);
Div box shadow
Elevated card
box-shadow: 0 12px 32px -8px rgba(25, 156, 242, 0.45);
Border & gradient
Gradient panel
border: 3px solid #199cf2;
background: linear-gradient(135deg, #199cf2, #2719F2);
Gradient text

Gradient headline

background: linear-gradient(90deg, #199cf2, #5D19F2);
-webkit-background-clip: text;
color: transparent;
Focus ring
Focused control
outline: 2px solid #199cf2;
outline-offset: 3px;
Underline & caret

Marked up text

text-decoration-color: #199cf2;
caret-color: #199cf2;
Left rule
Pull quote or callout
border-left: 4px solid #199cf2;
Ring + tint
Selected chip
background: #E7F5FE;
box-shadow: inset 0 0 0 2px #199cf2;
Conic badge
68%
background: conic-gradient(#199cf2 68%, #e2e8f0 0);

Transparency

What each alpha value actually composites to. The top row is #199cf2 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(25, 156, 242, 0.5)
rgb(25 156 242 / 50%)
#199cf280
hsl(204 89% 52% / 50%)
color-mix(in srgb, #199cf2 50%, transparent)
Alpha8-digit hexFlat on white
10%#199cf21a#E8F5FE
20%#199cf233#D1EBFC
40%#199cf266#A3D7FA
60%#199cf299#75C4F7
80%#199cf2cc#47B0F5

Gradients from #199cf2

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, #53B5F5, #199cf2 45%, #074C79);
Duotone
A short hue run reads richer than a flat fill
background: linear-gradient(120deg, #199cf2, #2C0DE0);
Complement sweep
Loud — keep it behind large type only
background: linear-gradient(90deg, #199cf2, #F26F19);
Spotlight
Hero panels and app headers
background: radial-gradient(120% 120% at 20% 0%, #70C1F7 0%, #199cf2 45%, #074C79 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%, #49F5D5 0%, transparent 60%), radial-gradient(55% 55% at 85% 15%, #363AF4 0%, transparent 60%), radial-gradient(70% 70% at 50% 95%, #074C79 0%, transparent 65%), #199cf2;

Monochromatic scale

Palettes built from #199cf2

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.

#199cf2 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 7.08:1.

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.

#199cf2, answered

What color is #199cf2?

#199cf2 is a balanced electric blue, closest to Dodger Blue (ΔE2000 5.4). It sits at 204° on the hue wheel with 89% saturation and 52% lightness, which reads as cool.

What is the RGB value of #199cf2?

rgb(25, 156, 242) — 25 red, 156 green and 242 blue out of 255, or 9.8% / 61.2% / 94.9% by channel.

What is #199cf2 in HSL and HSV?

hsl(204, 89%, 52%) and hsv(204, 90%, 95%). HSL is what CSS takes; HSV is what your design tool's picker shows, which is why the saturation numbers rarely match.

Is #199cf2 a light or a dark color?

It is a mid-tone. Relative luminance is 0.3039 and perceived brightness is 57%, so black text on it reaches 7.08:1.

Should I use black or white text on #199cf2?

Black. It scores 7.08:1 against #199cf2, versus 2.97:1 for white — AAA at any size.

Is #199cf2 accessible on a white background?

#199cf2 on white scores 2.97:1, which fails WCAG AA at every size. Darken it to #0B7AC3 to reach 4.5:1, or #085C93 for 7:1.

What is the complementary color of #199cf2?

#F26F19 sits directly opposite on the wheel. Softer options are the split-complements #F21930 and #F2DC19, which give the same contrast with far less vibration.

What colors go well with #199cf2?

For interface work: #F4F8FA as the surface, #C0DBED for borders, #4B7B9B for secondary text, #F73614 as an accent and #074C79 for hover and pressed states. For a palette, the analogous pair #19F2DC and #1930F2 stays calm, while #F26F19 is the loudest partner.

What is #199cf2 in CMYK for printing?

cmyk(90%, 36%, 0%, 5%). 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 #199cf2 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 #19ECF2; nudged cooler, #0B82E7.

Which Tailwind color is closest to #199cf2?

The sky family — its 500 step is #0ea5e9, ΔE2000 4.8 away. That is a visible difference, so define #199cf2 as a custom token rather than reaching for the built-in.

How do I use #199cf2 in Tailwind CSS?

Inline it as an arbitrary value with bg-[#199cf2] or text-[#199cf2], 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 #199cf2 with 50% opacity?

rgba(25, 156, 242, 0.5), or #199cf280 in eight-digit hex. Over white that composites to #8CCEF9; over black, #0D4E79.

Is #199cf2 a web-safe color?

No. The nearest web-safe colour is #0099FF, ΔE2000 2.1 away. The palette only matters for legacy displays and some email clients now.

What does the color #199cf2 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 #199cf2?

The safest is same-hue elevation: linear-gradient(135deg, #53B5F5, #199cf2 45%, #074C79). For more colour, a short hue run to #2C0DE0 keeps it rich without turning muddy.

Work with #199cf2 in the Color Lab

Every tool opens with this colour already loaded.

Every value on this page is computed from #199cf2 at request time — conversions, contrast ratios and ΔE distances are calculated, never looked up.