#304583#304583

#304583 is a dark, moderate blue. Relative luminance 0.065; OKLCH L 40.7% C 0.107 H 267.5°. Best body text is #FFFFFF at 9.11:1 contrast (WCAG AA passes).

Color values

HEX	#304583
RGB	rgb(48, 69, 131)
HSL	hsl(225, 46%, 35%)
HSV	hsv(225, 63%, 51%)
CMYK	cmyk(63.4%, 47.3%, 0%, 48.6%)
CIE-LAB	lab(30.69, 12.64, -37.44)
CIE-LCH	lch(30.69, 39.52, 288.65°)
OKLab	oklab(40.7% -0.0048 -0.1069)
OKLCH	oklch(40.7% 0.107 267.5)
XYZ	xyz(7.4424, 6.5227, 22.3351)
Luminance	0.0652 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#304583 #836E30

analogous

#306F83 #304583 #443083

triadic

#304583 #833045 #458330

tetradic

#304583 #83306F #836E30 #308344

square

#304583 #83306F #836E30 #308344

split-complementary

#304583 #834430 #6F8330

monochromatic

#0F1629 #202D56 #304583 #405DB0 #667FC7

Accessibility & contrast

On white

9.11

#304583 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.30

#304583 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #304583

9.11:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##304583	#FFFFFF	#000000	##FFFFFF
##304583	1.00	9.11	2.30	9.11
#FFFFFF	9.11	1.00	21.00	1.00
#000000	2.30	21.00	1.00	21.00
##FFFFFF	9.11	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#274C85

Deuteranopia (green-blind)

#1A4582

Tritanopia (blue-blind)

#00535D

Achromatopsia (no color)

#484848

Design tokens & code

CSS

--color: #304583;
/* rgb */ color: rgb(48, 69, 131);
/* oklch */ color: oklch(40.7% 0.107 267.5);

Tailwind

colors: {
  custom: {
    50: '#7178a7',
    500: '#304583',
    950: '#000000',
  },
}

SCSS

$custom: #304583;
$custom-light: #7178a7;
$custom-dark: #000000;

JSON

{
  "hex": "#304583",
  "rgb": {
    "r": 48,
    "g": 69,
    "b": 131
  },
  "hsl": {
    "h": 224.819,
    "s": 46.369,
    "l": 35.098
  },
  "oklch": {
    "l": 0.40704,
    "c": 0.10702,
    "h": 267.5
  },
  "luminance": 0.06523
}

Semantic roles & 50–950 ramp

primary

#304583

secondary

#AE9B61

accent

#B552D6

background

#F7F7FA

surface

#EDEDF4

border

#C8C8CE

text

#08080F

muted

#7B7B7F

Preview Lab

Preview with #304583

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

Preview Lab → · Contrast checker → · Palette generator →