#304D79#304D79

#304D79 is a dark, moderate blue. Relative luminance 0.073; OKLCH L 41.9% C 0.082 H 258.5°. Best body text is #FFFFFF at 8.52:1 contrast (WCAG AA passes).

Color values

HEX	#304D79
RGB	rgb(48, 77, 121)
HSL	hsl(216, 43%, 33%)
HSV	hsv(216, 60%, 47%)
CMYK	cmyk(60.3%, 36.4%, 0%, 52.5%)
CIE-LAB	lab(32.52, 3.64, -28.33)
CIE-LCH	lch(32.52, 28.57, 277.31°)
OKLab	oklab(41.92% -0.0163 -0.0801)
OKLCH	oklch(41.92% 0.082 258.5)
XYZ	xyz(7.3228, 7.3160, 19.1117)
Luminance	0.0732 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#304D79 #795C30

analogous

#307179 #304D79 #373079

triadic

#304D79 #79304D #4D7930

tetradic

#304D79 #793071 #795C30 #307937

square

#304D79 #793071 #795C30 #307937

split-complementary

#304D79 #793730 #717930

monochromatic

#0D1521 #1F314D #304D79 #4169A5 #6288C1

Accessibility & contrast

On white

8.52

#304D79 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.46

#304D79 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #304D79

8.52:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##304D79	#FFFFFF	#000000	##FFFFFF
##304D79	1.00	8.52	2.46	8.52
#FFFFFF	8.52	1.00	21.00	1.00
#000000	2.46	21.00	1.00	21.00
##FFFFFF	8.52	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#3B507B

Deuteranopia (green-blind)

#314978

Tritanopia (blue-blind)

#00575D

Achromatopsia (no color)

#4C4C4C

Design tokens & code

CSS

--color: #304d79;
/* rgb */ color: rgb(48, 77, 121);
/* oklch */ color: oklch(41.9% 0.082 258.5);

Tailwind

colors: {
  custom: {
    50: '#6f7ea0',
    500: '#304d79',
    950: '#000000',
  },
}

SCSS

$custom: #304d79;
$custom-light: #6f7ea0;
$custom-dark: #000000;

JSON

{
  "hex": "#304d79",
  "rgb": {
    "r": 48,
    "g": 77,
    "b": 121
  },
  "hsl": {
    "h": 216.164,
    "s": 43.195,
    "l": 33.137
  },
  "oklch": {
    "l": 0.41917,
    "c": 0.08177,
    "h": 258.5
  },
  "luminance": 0.07317
}

Semantic roles & 50–950 ramp

primary

#304D79

secondary

#A88A5D

accent

#A155D3

background

#F6F7F9

surface

#ECEEF2

border

#C7C9CC

text

#08090E

muted

#7B7B7E

Preview Lab

Preview with #304D79

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

Preview Lab → · Contrast checker → · Palette generator →