#304CA5#304CA5

#304CA5 is a dark, vivid blue. Relative luminance 0.085; OKLCH L 44.7% C 0.147 H 267.1°. Best body text is #FFFFFF at 7.77:1 contrast (WCAG AA passes).

Color values

HEX	#304CA5
RGB	rgb(48, 76, 165)
HSL	hsl(226, 55%, 42%)
HSV	hsv(226, 71%, 65%)
CMYK	cmyk(70.9%, 53.9%, 0%, 35.3%)
CIE-LAB	lab(35.03, 20.66, -51.17)
CIE-LCH	lch(35.03, 55.19, 291.99°)
OKLab	oklab(44.75% -0.0075 -0.1472)
OKLCH	oklch(44.75% 0.147 267.1)
XYZ	xyz(10.5925, 8.5128, 36.6749)
Luminance	0.0851 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#304CA5 #A58930

analogous

#3087A5 #304CA5 #4F30A5

triadic

#304CA5 #A5304C #4CA530

tetradic

#304CA5 #A53087 #A58930 #30A54F

square

#304CA5 #A53087 #A58930 #30A54F

split-complementary

#304CA5 #A54F30 #87A530

monochromatic

#142046 #223676 #304CA5 #4867CA #788FD8

Accessibility & contrast

On white

7.77

#304CA5 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.70

#304CA5 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #304CA5

7.77:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##304CA5	#FFFFFF	#000000	##FFFFFF
##304CA5	1.00	7.77	2.70	7.77
#FFFFFF	7.77	1.00	21.00	1.00
#000000	2.70	21.00	1.00	21.00
##FFFFFF	7.77	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0B58A8

Deuteranopia (green-blind)

#004DA3

Tritanopia (blue-blind)

#006171

Achromatopsia (no color)

#525252

Design tokens & code

CSS

--color: #304ca5;
/* rgb */ color: rgb(48, 76, 165);
/* oklch */ color: oklch(44.7% 0.147 267.1);

Tailwind

colors: {
  custom: {
    50: '#777dc0',
    500: '#304ca5',
    950: '#000000',
  },
}

SCSS

$custom: #304ca5;
$custom-light: #777dc0;
$custom-dark: #000000;

JSON

{
  "hex": "#304ca5",
  "rgb": {
    "r": 48,
    "g": 76,
    "b": 165
  },
  "hsl": {
    "h": 225.641,
    "s": 54.93,
    "l": 41.765
  },
  "oklch": {
    "l": 0.44748,
    "c": 0.14739,
    "h": 267.1
  },
  "luminance": 0.08514
}

Semantic roles & 50–950 ramp

primary

#304CA5

secondary

#C0AD71

accent

#BB4ADE

background

#F7F7FB

surface

#EEEEF7

border

#C9C9D0

text

#0A0912

muted

#7C7B81

Preview Lab

Preview with #304CA5

Body copy rendered with the generated semantic roles for this colour.

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