#304378#304378

#304378 is a dark, moderate blue. Relative luminance 0.060; OKLCH L 39.5% C 0.093 H 267.2°. Best body text is #FFFFFF at 9.55:1 contrast (WCAG AA passes).

Color values

HEX	#304378
RGB	rgb(48, 67, 120)
HSL	hsl(224, 43%, 33%)
HSV	hsv(224, 60%, 47%)
CMYK	cmyk(60%, 44.2%, 0%, 52.9%)
CIE-LAB	lab(29.41, 9.95, -32.63)
CIE-LCH	lch(29.41, 34.11, 286.95°)
OKLab	oklab(39.49% -0.0045 -0.0928)
OKLCH	oklch(39.49% 0.093 267.2)
XYZ	xyz(6.6151, 5.9982, 18.5748)
Luminance	0.0600 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#304378 #786530

analogous

#306778 #304378 #413078

triadic

#304378 #783043 #437830

tetradic

#304378 #783067 #786530 #307841

square

#304378 #783067 #786530 #307841

split-complementary

#304378 #784130 #677830

monochromatic

#0D1221 #1F2B4C #304378 #415BA4 #627BC0

Accessibility & contrast

On white

9.55

#304378 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.20

#304378 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #304378

9.55:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##304378	#FFFFFF	#000000	##FFFFFF
##304378	1.00	9.55	2.20	9.55
#FFFFFF	9.55	1.00	21.00	1.00
#000000	2.20	21.00	1.00	21.00
##FFFFFF	9.55	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2C497A

Deuteranopia (green-blind)

#224277

Tritanopia (blue-blind)

#004F57

Achromatopsia (no color)

#454545

Design tokens & code

CSS

--color: #304378;
/* rgb */ color: rgb(48, 67, 120);
/* oklch */ color: oklch(39.5% 0.093 267.2);

Tailwind

colors: {
  custom: {
    50: '#6f769f',
    500: '#304378',
    950: '#000000',
  },
}

SCSS

$custom: #304378;
$custom-light: #6f769f;
$custom-dark: #000000;

JSON

{
  "hex": "#304378",
  "rgb": {
    "r": 48,
    "g": 67,
    "b": 120
  },
  "hsl": {
    "h": 224.167,
    "s": 42.857,
    "l": 32.941
  },
  "oklch": {
    "l": 0.39493,
    "c": 0.09292,
    "h": 267.2
  },
  "luminance": 0.05999
}

Semantic roles & 50–950 ramp

primary

#304378

secondary

#A7945C

accent

#B255D3

background

#F6F7F9

surface

#ECEDF2

border

#C7C8CC

text

#08080E

muted

#7B7B7E

Preview Lab

Preview with #304378

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

Preview Lab → · Contrast checker → · Palette generator →