#304D90#304D90

#304D90 is a dark, moderate blue. Relative luminance 0.080; OKLCH L 43.4% C 0.116 H 264.5°. Best body text is #FFFFFF at 8.11:1 contrast (WCAG AA passes).

Color values

HEX	#304D90
RGB	rgb(48, 77, 144)
HSL	hsl(222, 50%, 38%)
HSV	hsv(222, 67%, 56%)
CMYK	cmyk(66.7%, 46.5%, 0%, 43.5%)
CIE-LAB	lab(33.88, 12.11, -40.34)
CIE-LCH	lch(33.88, 42.12, 286.71°)
OKLab	oklab(43.41% -0.0111 -0.1153)
OKLCH	oklch(43.41% 0.116 264.5)
XYZ	xyz(8.9051, 7.9489, 27.4451)
Luminance	0.0795 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#304D90 #907330

analogous

#307D90 #304D90 #433090

triadic

#304D90 #90304D #4D9030

tetradic

#304D90 #90307D #907330 #309043

square

#304D90 #90307D #907330 #309043

split-complementary

#304D90 #904330 #7D9030

monochromatic

#111C34 #213462 #304D90 #3F66BE #6C8ACE

Accessibility & contrast

On white

8.11

#304D90 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.59

#304D90 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #304D90

8.11:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##304D90	#FFFFFF	#000000	##FFFFFF
##304D90	1.00	8.11	2.59	8.11
#FFFFFF	8.11	1.00	21.00	1.00
#000000	2.59	21.00	1.00	21.00
##FFFFFF	8.11	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2C5493

Deuteranopia (green-blind)

#1B4C8F

Tritanopia (blue-blind)

#005C67

Achromatopsia (no color)

#505050

Design tokens & code

CSS

--color: #304d90;
/* rgb */ color: rgb(48, 77, 144);
/* oklch */ color: oklch(43.4% 0.116 264.5);

Tailwind

colors: {
  custom: {
    50: '#737eb1',
    500: '#304d90',
    950: '#000000',
  },
}

SCSS

$custom: #304d90;
$custom-light: #737eb1;
$custom-dark: #000000;

JSON

{
  "hex": "#304d90",
  "rgb": {
    "r": 48,
    "g": 77,
    "b": 144
  },
  "hsl": {
    "h": 221.875,
    "s": 50,
    "l": 37.647
  },
  "oklch": {
    "l": 0.43411,
    "c": 0.11586,
    "h": 264.5
  },
  "luminance": 0.0795
}

Semantic roles & 50–950 ramp

primary

#304D90

secondary

#B59E66

accent

#AF4EDA

background

#F7F7FA

surface

#EDEEF5

border

#C8C9CF

text

#090911

muted

#7B7B80

Preview Lab

Preview with #304D90

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

Preview Lab → · Contrast checker → · Palette generator →