#31478D#31478D

#31478D is a dark, moderate blue. Relative luminance 0.071; OKLCH L 41.9% C 0.119 H 267.9°. Best body text is #FFFFFF at 8.69:1 contrast (WCAG AA passes).

Color values

HEX	#31478D
RGB	rgb(49, 71, 141)
HSL	hsl(226, 48%, 37%)
HSV	hsv(226, 65%, 55%)
CMYK	cmyk(65.2%, 49.6%, 0%, 44.7%)
CIE-LAB	lab(31.99, 15.19, -41.53)
CIE-LCH	lch(31.99, 44.22, 290.10°)
OKLab	oklab(41.92% -0.0044 -0.1189)
OKLCH	oklch(41.92% 0.119 267.9)
XYZ	xyz(8.3259, 7.0818, 26.1223)
Luminance	0.0708 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#31478D #8D7731

analogous

#31758D #31478D #49318D

triadic

#31478D #8D3147 #478D31

tetradic

#31478D #8D3175 #8D7731 #318D49

square

#31478D #8D3175 #8D7731 #318D49

split-complementary

#31478D #8D4931 #758D31

monochromatic

#111932 #213060 #31478D #415EBA #6C83CC

Accessibility & contrast

On white

8.69

#31478D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.42

#31478D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #31478D

8.69:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##31478D	#FFFFFF	#000000	##FFFFFF
##31478D	1.00	8.69	2.42	8.69
#FFFFFF	8.69	1.00	21.00	1.00
#000000	2.42	21.00	1.00	21.00
##FFFFFF	8.69	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#235090

Deuteranopia (green-blind)

#0F478C

Tritanopia (blue-blind)

#005763

Achromatopsia (no color)

#4B4B4B

Design tokens & code

CSS

--color: #31478d;
/* rgb */ color: rgb(49, 71, 141);
/* oklch */ color: oklch(41.9% 0.119 267.9);

Tailwind

colors: {
  custom: {
    50: '#7379af',
    500: '#31478d',
    950: '#000000',
  },
}

SCSS

$custom: #31478d;
$custom-light: #7379af;
$custom-dark: #000000;

JSON

{
  "hex": "#31478d",
  "rgb": {
    "r": 49,
    "g": 71,
    "b": 141
  },
  "hsl": {
    "h": 225.652,
    "s": 48.421,
    "l": 37.255
  },
  "oklch": {
    "l": 0.41922,
    "c": 0.11895,
    "h": 267.9
  },
  "luminance": 0.07083
}

Semantic roles & 50–950 ramp

primary

#31478D

secondary

#B4A166

accent

#B750D8

background

#F7F7FA

surface

#EDEDF4

border

#C8C8CE

text

#090910

muted

#7B7B7F

Preview Lab

Preview with #31478D

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

Preview Lab → · Contrast checker → · Palette generator →