#304E9E#304E9E

#304E9E is a dark, vivid blue. Relative luminance 0.085; OKLCH L 44.6% C 0.135 H 265.7°. Best body text is #FFFFFF at 7.75:1 contrast (WCAG AA passes).

Color values

HEX	#304E9E
RGB	rgb(48, 78, 158)
HSL	hsl(224, 53%, 40%)
HSV	hsv(224, 70%, 62%)
CMYK	cmyk(69.6%, 50.6%, 0%, 38%)
CIE-LAB	lab(35.09, 16.70, -46.87)
CIE-LCH	lch(35.09, 49.76, 289.61°)
OKLab	oklab(44.64% -0.0101 -0.1345)
OKLCH	oklch(44.64% 0.135 265.7)
XYZ	xyz(10.1127, 8.5448, 33.4575)
Luminance	0.0855 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#304E9E #9E8030

analogous

#30859E #304E9E #49309E

triadic

#304E9E #9E304E #4E9E30

tetradic

#304E9E #9E3085 #9E8030 #309E49

square

#304E9E #9E3085 #9E8030 #309E49

split-complementary

#304E9E #9E4930 #859E30

monochromatic

#132040 #22376F #304E9E #4568C6 #748ED5

Accessibility & contrast

On white

7.75

#304E9E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.71

#304E9E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #304E9E

7.75:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##304E9E	#FFFFFF	#000000	##FFFFFF
##304E9E	1.00	7.75	2.71	7.75
#FFFFFF	7.75	1.00	21.00	1.00
#000000	2.71	21.00	1.00	21.00
##FFFFFF	7.75	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2058A1

Deuteranopia (green-blind)

#004E9C

Tritanopia (blue-blind)

#00616E

Achromatopsia (no color)

#535353

Design tokens & code

CSS

--color: #304e9e;
/* rgb */ color: rgb(48, 78, 158);
/* oklch */ color: oklch(44.6% 0.135 265.7);

Tailwind

colors: {
  custom: {
    50: '#767fbb',
    500: '#304e9e',
    950: '#000000',
  },
}

SCSS

$custom: #304e9e;
$custom-light: #767fbb;
$custom-dark: #000000;

JSON

{
  "hex": "#304e9e",
  "rgb": {
    "r": 48,
    "g": 78,
    "b": 158
  },
  "hsl": {
    "h": 223.636,
    "s": 53.398,
    "l": 40.392
  },
  "oklch": {
    "l": 0.44639,
    "c": 0.13488,
    "h": 265.7
  },
  "luminance": 0.08546
}

Semantic roles & 50–950 ramp

primary

#304E9E

secondary

#BDA76D

accent

#B54BDD

background

#F7F7FB

surface

#EEEEF6

border

#C9C9D0

text

#090A12

muted

#7B7C81

Preview Lab

Preview with #304E9E

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

Preview Lab → · Contrast checker → · Palette generator →