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blue · cool

#044dcd

a dark, electric blue · cool · closest name: Royal Blue

Token name suggestion: Shadow Cobalt

RGB
4, 77, 205
HSL
218°, 96%, 41%
CMYK
98, 62, 0, 20
Luminance
0.0974

#044dcd is a dark electric blue, 218° on the wheel and 95/100 on the cool side. Put white text on it (7.12:1). As text it scores 7.12:1 on white — safe at any size. Nearest name is Royal Blue, nearest Tailwind family is indigo.

hsl(218 96% 41%)rgb(4 77 205)Base step 700AAA inkCool

At a glance

Every number on this page in one read: what #044dcd is made of, how bright it looks, and which way it leans.

Hex
#044dcd
Hue
218°
blue
Saturation
96%
electric
Lightness
41%
dark
Brightness
80%
HSV value
Perceived
36%
weighted brightness
Luminance
0.0974
WCAG relative
Temperature
Cool
95/100 cool
Color family
Blue
Tone
Electric
Best ink
White
7.12:1
Closest name
Royal Blue
ΔE2000 9.7
Chroma
77.9
LCH, 0–130ish
OKLCH L
0.472
perceptual lightness
Tailwind
indigo
500 · ΔE 12.4
Web-safe
#0066CC
nearest of 216
Where it sits
Hue218° of 360°
Saturation96%
Lightness41%
Saturation × lightness field

Left edge is grey, right edge is full chroma; top is white, bottom is black. The dot is #044dcd.

Temperature
Warm ← → Cool95% 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
Red0%
Green54%
Blue45%

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

Every format

HEX#044dcd
HEX (8-digit)#044dcdff
RGBrgb(4, 77, 205)
RGBArgba(4, 77, 205, 1)
HSLhsl(218, 96%, 41%)
HSV / HSBhsv(218, 98%, 80%)
HWBhwb(218 2% 20%)
CMYKcmyk(98%, 62%, 0%, 20%)
LABlab(37.4 32.2 -70.9)
LCHlch(37.4 77.9 294.4)
OKLCHoklch(0.472 0.208 261.6)
XYZ (D65)xyz(13.72, 9.74, 58.90)
Decimal282061
Display P3color(display-p3 0.016 0.302 0.804)
Web-safe#0066CC

Copy-ready code

every platformclick to select
/* CSS */
color: #044dcd;
background-color: #044dcd;
/* CSS custom property */
--brand: #044dcd;
/* Tailwind (arbitrary) */
class="text-[#044dcd] bg-[#044dcd]"
/* SCSS */
$brand: #044dcd;
/* SwiftUI */
Color(red: 0.016, green: 0.302, blue: 0.804)
/* UIKit */
UIColor(red: 0.016, green: 0.302, blue: 0.804, alpha: 1)
/* Android XML */
<color name="brand">#044DCD</color>
/* Android Compose */
Color(0xFF044DCD)
/* Flutter */
Color(0xFF044DCD)
/* Python / OpenCV (BGR) */
(205, 77, 4)
/* Python / PIL (RGB) */
(4, 77, 205)
/* Java AWT */
new Color(4, 77, 205)
/* .NET */
Color.FromArgb(255, 4, 77, 205)
/* OpenGL / Unity (0–1) */
(0.0157f, 0.3020f, 0.8039f, 1f)
/* LaTeX */
\definecolor{brand}{RGB}{4,77,205}
modern cssclick to select
/* mix without leaving CSS */
background: color-mix(in oklab, #044dcd 85%, white);
border-color: color-mix(in oklab, #044dcd 40%, transparent);
/* theme-aware in one line */
color: light-dark(#022F7D, #D3DDEE);
/* relative colour syntax */
--hover: hsl(from #044dcd 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: #F1F6FD;
  --brand-100: #E4ECFC;
  --brand-200: #C1D6FA;
  --brand-300: #91B8FD;
  --brand-400: #5A95FC;
  --brand-500: #2371FB;
  --brand-600: #055AF0;
  --brand-700: #044dcd;
  --brand-800: #033CA0;
  --brand-900: #072E73;
  --brand-950: #041D48;
  --brand: #044dcd;
  --brand-ink: #ffffff;
  --brand-surface: #F4F7FA;
  --brand-border: #C0D0ED;
  --brand-hover: #0340AA;
  --brand-pressed: #033387;
}
@media (prefers-color-scheme: dark) {
  :root {
    --brand-surface: #141A24;
    --brand-ink: #D3DDEE;
  }
}
tailwind.config.jsclick to select
theme: {
  extend: {
    colors: {
      brand: {
        50: '#F1F6FD',
        100: '#E4ECFC',
        200: '#C1D6FA',
        300: '#91B8FD',
        400: '#5A95FC',
        500: '#2371FB',
        600: '#055AF0',
        700: '#044dcd',
        800: '#033CA0',
        900: '#072E73',
        950: '#041D48',
        DEFAULT: '#044dcd',
      },
    },
  },
}
scss mapclick to select
$brand: (
  '50': #F1F6FD,
  '100': #E4ECFC,
  '200': #C1D6FA,
  '300': #91B8FD,
  '400': #5A95FC,
  '500': #2371FB,
  '600': #055AF0,
  '700': #044dcd,
  '800': #033CA0,
  '900': #072E73,
  '950': #041D48,
);
$brand-base: #044dcd;
$brand-ink: #ffffff;

@function brand($step) { @return map-get($brand, $step); }
w3c design tokens (json)click to select
{
  "color": {
    "brand": {
      "50": { "$value": "#F1F6FD", "$type": "color" },
      "100": { "$value": "#E4ECFC", "$type": "color" },
      "200": { "$value": "#C1D6FA", "$type": "color" },
      "300": { "$value": "#91B8FD", "$type": "color" },
      "400": { "$value": "#5A95FC", "$type": "color" },
      "500": { "$value": "#2371FB", "$type": "color" },
      "600": { "$value": "#055AF0", "$type": "color" },
      "700": { "$value": "#044dcd", "$type": "color" },
      "800": { "$value": "#033CA0", "$type": "color" },
      "900": { "$value": "#072E73", "$type": "color" },
      "950": { "$value": "#041D48", "$type": "color" }
    },
    "brandInk": { "$value": "#ffffff", "$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#ffffff on #044dcd · 7.12:1
Use #ffffffAAA at every size.
Aa
12px
Aa
16px
Aa
24px
Aa
White text · 7.12:1 · recommended
AA pass · AA large pass · AAA pass
Aa
Black text · 2.95:1
AA fail · AA large fail · AAA fail
Reading the other direction: #044dcd as text scores 7.12:1 on white and 2.95:1 on black.
Best tinted ink on it, if plain black or white feels flat: #E6EFFF at 6.16:1.

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
#044dcd · 7.12:1
AA on whitealready passes
#044dcd
The quick fox
#044dcd · 7.12:1
AAA on whitealready passes
#044dcd
The quick fox
#196BFB · 4.54:1
AA on black+13% L
#196BFB
The quick fox
#5A95FC · 7.14:1
AAA on black+26% L
#5A95FC

Large text — 24px regular or 18.66px bold and above — only needs 3:1, so #044DCD 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
#044dcd on white: 7.12:1
AA ✓ pass · AA-large · AAA
Aa
#044dcd on black: 2.95:1
AA ✗ fail · AA-large · AAA
Against the neutral ladder

Contrast is symmetric, so each row covers both directions: #044dcd as text on that neutral, and that neutral as text on #044dcd.

NeutralRatioBoth directions
White7.12:1AaAa
Slate 506.81:1AaAa
Slate 1006.50:1AaAa
Slate 2005.78:1AaAa
Slate 3004.80:1AaAa
Slate 4002.78:1AaAa
Slate 5001.50:1AaAa
Slate 6001.06:1AaAa
Slate 7001.45:1AaAa
Slate 8002.05:1AaAa
Slate 9002.51:1AaAa
Black2.95:1AaAa
Colour vision deficiency
true color
protanopia · #0061D1
deuteranopia · #004FCB
tritanopia · #006F86

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. #044dcd is pinned to step 700; the rest hold its hue and let saturation ease off at the extremes so the pale end never turns neon.

#F1F6FD
#E4ECFC
#C1D6FA
#91B8FD
#5A95FC
#2371FB
#055AF0
#044dcd
#033CA0
#072E73
#041D48
Base = 700Lightest = 50 · #F1F6FDDarkest = 950 · #041D48Text step on white = 600
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 0.052 261.6);
  --brand-100: oklch(0.94 0.083 261.6);
  --brand-200: oklch(0.88 0.125 261.6);
  --brand-300: oklch(0.80 0.162 261.6);
  --brand-400: oklch(0.72 0.191 261.6);
  --brand-500: oklch(0.64 0.208 261.6);
  --brand-600: oklch(0.56 0.208 261.6);
  --brand-700: oklch(0.48 0.195 261.6);
  --brand-800: oklch(0.40 0.175 261.6);
  --brand-900: oklch(0.32 0.146 261.6);
  --brand-950: oklch(0.24 0.114 261.6);
}

Colors that work with #044dcd

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

Text on it#ffffff
White wins here
Surface#F4F7FA
Tinted page background
Border#C0D0ED
Hairlines and dividers
Muted text#4B689B
Captions on the surface
Accent#D15100
Second voice, not a rival
Dark variant#022F7D
Hover, pressed, headers
Light variant#E6EFFF
Selected rows, tints
Dark surface#141A24
Dark-mode background
Hover#0340AA
One step down in lightness
Pressed#033387
Two steps down
Disabled#8C9BB5
Chroma pulled out
Focus ring#0053E6
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 #044dcd

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

Works well for
  • Body text and links on white
  • Primary buttons and calls to action
  • Focus rings, active and selected states
  • Headers, footers and dark-mode surfaces
  • Brand accents, badges and data highlights
Use with care
  • Text on black or near-black surfaces
  • Full-page backgrounds — tiring over long sessions
  • Black text placed on it
  • Pairing with a same-lightness hue — edges vibrate
Minimum size as text on white
Any size
Safe as a fill behind white type
Yes
Safe as a 1px border on white
Yes

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 low lightness adds weight and formality.

Worth knowing

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

Reads as
  • FormalityHigh
  • EnergyHigh
  • Weight59/100
  • 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#CD8404
Analogous left#04B2CD
Analogous right#1F04CD
Split-complement 1#CD1F04
Split-complement 2#B2CD04
Triadic 1#CD044D
Triadic 2#4DCD04
Tetradic#CD04B2
On the wheel
Base+30°−30°+120°+240°+180°218°

#044dcd sits at 218°. Every dot is a harmony position and links to its own page in the table alongside.

RGB percentages

Red1.6%
Green30.2%
Blue80.4%
R · 0–255
4
0x04
G · 0–255
77
0x4d
B · 0–255
205
0xcd

CMYK percentages

Cyan98.0%
Magenta62.4%
Yellow0.0%
Key (black)19.6%

Total ink coverage is 180%. Most commercial presses cap around 300% — above that, sheets stop drying properly.

Color previews

#044dcd text on a black background

contrast 2.95:1

Card sample

#044dcd text on a white background

contrast 7.12:1

Card sample

#044dcd on grey

6.50:1

#044dcd on its own surface

6.62:1

#044dcd on its dark surface

2.45:1

CSS3 live lab

Text font color

The quick brown fox

color: #044dcd;
Background color
Panel with #044dcd background
background-color: #044dcd;
Text shadow — hex

Glowing headline

text-shadow: 2px 2px 8px #044dcd;
Text shadow — RGB

Soft neon halo

text-shadow: 0 0 14px rgba(4, 77, 205, 0.45);
Div box shadow
Elevated card
box-shadow: 0 12px 32px -8px rgba(4, 77, 205, 0.45);
Border & gradient
Gradient panel
border: 3px solid #044dcd;
background: linear-gradient(135deg, #044dcd, #4104CD);
Gradient text

Gradient headline

background: linear-gradient(90deg, #044dcd, #7304CD);
-webkit-background-clip: text;
color: transparent;
Focus ring
Focused control
outline: 2px solid #044dcd;
outline-offset: 3px;
Underline & caret

Marked up text

text-decoration-color: #044dcd;
caret-color: #044dcd;
Left rule
Pull quote or callout
border-left: 4px solid #044dcd;
Ring + tint
Selected chip
background: #E6EFFF;
box-shadow: inset 0 0 0 2px #044dcd;
Conic badge
68%
background: conic-gradient(#044dcd 68%, #e2e8f0 0);

Transparency

What each alpha value actually composites to. The top row is #044dcd 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(4, 77, 205, 0.5)
rgb(4 77 205 / 50%)
#044dcd80
hsl(218 96% 41% / 50%)
color-mix(in srgb, #044dcd 50%, transparent)
Alpha8-digit hexFlat on white
10%#044dcd1a#E6EDFA
20%#044dcd33#CDDBF5
40%#044dcd66#9BB8EB
60%#044dcd99#6894E1
80%#044dcdcc#3671D7

Gradients from #044dcd

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, #1468FA, #044dcd 45%, #022F7D);
Duotone
A short hue run reads richer than a flat fill
background: linear-gradient(120deg, #044dcd, #4603AF);
Complement sweep
Loud — keep it behind large type only
background: linear-gradient(90deg, #044dcd, #CD8404);
Spotlight
Hero panels and app headers
background: radial-gradient(120% 120% at 20% 0%, #327BFB 0%, #044dcd 45%, #022F7D 100%);
Soft wash
Section backgrounds that stay readable
background: linear-gradient(180deg, #F4F7FA, #ffffff);
Mesh
Ambient background, no image weight
background: radial-gradient(60% 60% at 15% 20%, #0AEDFA 0%, transparent 60%), radial-gradient(55% 55% at 85% 15%, #3705EB 0%, transparent 60%), radial-gradient(70% 70% at 50% 95%, #022F7D 0%, transparent 65%), #044dcd;

Monochromatic scale

Palettes built from #044dcd

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.

#044dcd 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

Too dim on dark surfaces at 2.95:1 — lift it to #196BFB for body text, or reserve it for fills.

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.

#044dcd, answered

What color is #044dcd?

#044dcd is a dark electric blue, closest to Royal Blue (ΔE2000 9.7). It sits at 218° on the hue wheel with 96% saturation and 41% lightness, which reads as cool.

What is the RGB value of #044dcd?

rgb(4, 77, 205) — 4 red, 77 green and 205 blue out of 255, or 1.6% / 30.2% / 80.4% by channel.

What is #044dcd in HSL and HSV?

hsl(218, 96%, 41%) and hsv(218, 98%, 80%). HSL is what CSS takes; HSV is what your design tool's picker shows, which is why the saturation numbers rarely match.

Is #044dcd a light or a dark color?

It is a dark color. Relative luminance is 0.0974 and perceived brightness is 36%, so white text on it reaches 7.12:1.

Should I use black or white text on #044dcd?

White. It scores 7.12:1 against #044dcd, versus 2.95:1 for black — AAA at any size.

Is #044dcd accessible on a white background?

#044dcd on white scores 7.12:1, which clears AAA at every size.

What is the complementary color of #044dcd?

#CD8404 sits directly opposite on the wheel. Softer options are the split-complements #CD1F04 and #B2CD04, which give the same contrast with far less vibration.

What colors go well with #044dcd?

For interface work: #F4F7FA as the surface, #C0D0ED for borders, #4B689B for secondary text, #D15100 as an accent and #022F7D for hover and pressed states. For a palette, the analogous pair #04B2CD and #1F04CD stays calm, while #CD8404 is the loudest partner.

What is #044dcd in CMYK for printing?

cmyk(98%, 62%, 0%, 20%). 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 #044dcd warm or cool?

Cool — it scores 95 on a scale where 0 is the warmest orange and 100 the coolest azure. Nudged warmer it becomes #0504CD; nudged cooler, #024DB6.

Which Tailwind color is closest to #044dcd?

The indigo family — its 500 step is #6366f1, ΔE2000 12.4 away. That is a visible difference, so define #044dcd as a custom token rather than reaching for the built-in.

How do I use #044dcd in Tailwind CSS?

Inline it as an arbitrary value with bg-[#044dcd] or text-[#044dcd], 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 #044dcd with 50% opacity?

rgba(4, 77, 205, 0.5), or #044dcd80 in eight-digit hex. Over white that composites to #82A6E6; over black, #022767.

Is #044dcd a web-safe color?

No. The nearest web-safe colour is #0066CC, ΔE2000 9 away. The palette only matters for legacy displays and some email clients now.

What does the color #044dcd 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 #044dcd?

The safest is same-hue elevation: linear-gradient(135deg, #1468FA, #044dcd 45%, #022F7D). For more colour, a short hue run to #4603AF keeps it rich without turning muddy.

Work with #044dcd in the Color Lab

Every tool opens with this colour already loaded.

Every value on this page is computed from #044dcd at request time — conversions, contrast ratios and ΔE distances are calculated, never looked up.