#304581#304581

#304581 is a dark, moderate blue. Relative luminance 0.065; OKLCH L 40.6% C 0.104 H 267.2°. Best body text is #FFFFFF at 9.15:1 contrast (WCAG AA passes).

Color values

HEX	#304581
RGB	rgb(48, 69, 129)
HSL	hsl(224, 46%, 35%)
HSV	hsv(224, 63%, 51%)
CMYK	cmyk(62.8%, 46.5%, 0%, 49.4%)
CIE-LAB	lab(30.57, 11.90, -36.41)
CIE-LCH	lch(30.57, 38.30, 288.10°)
OKLab	oklab(40.56% -0.0051 -0.1039)
OKLCH	oklch(40.56% 0.104 267.2)
XYZ	xyz(7.3081, 6.4690, 21.6281)
Luminance	0.0647 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#304581 #816C30

analogous

#306E81 #304581 #433081

triadic

#304581 #813045 #458130

tetradic

#304581 #81306E #816C30 #308143

square

#304581 #81306E #816C30 #308143

split-complementary

#304581 #814330 #6E8130

monochromatic

#0F1528 #1F2D54 #304581 #415DAE #667EC6

Accessibility & contrast

On white

9.15

#304581 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.29

#304581 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #304581

9.15:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##304581	#FFFFFF	#000000	##FFFFFF
##304581	1.00	9.15	2.29	9.15
#FFFFFF	9.15	1.00	21.00	1.00
#000000	2.29	21.00	1.00	21.00
##FFFFFF	9.15	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#294C83

Deuteranopia (green-blind)

#1D4580

Tritanopia (blue-blind)

#00535C

Achromatopsia (no color)

#484848

Design tokens & code

CSS

--color: #304581;
/* rgb */ color: rgb(48, 69, 129);
/* oklch */ color: oklch(40.6% 0.104 267.2);

Tailwind

colors: {
  custom: {
    50: '#7078a6',
    500: '#304581',
    950: '#000000',
  },
}

SCSS

$custom: #304581;
$custom-light: #7078a6;
$custom-dark: #000000;

JSON

{
  "hex": "#304581",
  "rgb": {
    "r": 48,
    "g": 69,
    "b": 129
  },
  "hsl": {
    "h": 224.444,
    "s": 45.763,
    "l": 34.706
  },
  "oklch": {
    "l": 0.40564,
    "c": 0.10399,
    "h": 267.2
  },
  "luminance": 0.0647
}

Semantic roles & 50–950 ramp

primary

#304581

secondary

#AD9960

accent

#B352D5

background

#F7F7FA

surface

#EDEDF4

border

#C8C8CE

text

#08080F

muted

#7B7B7F

Preview Lab

Preview with #304581

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

Preview Lab → · Contrast checker → · Palette generator →