#31458D#31458D

#31458D is a dark, vivid blue. Relative luminance 0.068; OKLCH L 41.5% C 0.122 H 268.9°. Best body text is #FFFFFF at 8.87:1 contrast (WCAG AA passes).

Color values

HEX	#31458D
RGB	rgb(49, 69, 141)
HSL	hsl(227, 48%, 37%)
HSV	hsv(227, 65%, 55%)
CMYK	cmyk(65.2%, 51.1%, 0%, 44.7%)
CIE-LAB	lab(31.42, 16.54, -42.45)
CIE-LCH	lch(31.42, 45.56, 291.29°)
OKLab	oklab(41.49% -0.0023 -0.1216)
OKLCH	oklch(41.49% 0.122 268.9)
XYZ	xyz(8.2008, 6.8316, 26.0806)
Luminance	0.0683 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#31458D #8D7931

analogous

#31738D #31458D #4B318D

triadic

#31458D #8D3145 #458D31

tetradic

#31458D #8D3173 #8D7931 #318D4B

square

#31458D #8D3173 #8D7931 #318D4B

split-complementary

#31458D #8D4B31 #738D31

monochromatic

#111932 #212F60 #31458D #415BBA #6C81CC

Accessibility & contrast

On white

8.87

#31458D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.37

#31458D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #31458D

8.87:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##31458D	#FFFFFF	#000000	##FFFFFF
##31458D	1.00	8.87	2.37	8.87
#FFFFFF	8.87	1.00	21.00	1.00
#000000	2.37	21.00	1.00	21.00
##FFFFFF	8.87	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#1E4E90

Deuteranopia (green-blind)

#06468C

Tritanopia (blue-blind)

#005662

Achromatopsia (no color)

#4A4A4A

Design tokens & code

CSS

--color: #31458d;
/* rgb */ color: rgb(49, 69, 141);
/* oklch */ color: oklch(41.5% 0.122 268.9);

Tailwind

colors: {
  custom: {
    50: '#7378af',
    500: '#31458d',
    950: '#000000',
  },
}

SCSS

$custom: #31458d;
$custom-light: #7378af;
$custom-dark: #000000;

JSON

{
  "hex": "#31458d",
  "rgb": {
    "r": 49,
    "g": 69,
    "b": 141
  },
  "hsl": {
    "h": 226.957,
    "s": 48.421,
    "l": 37.255
  },
  "oklch": {
    "l": 0.41487,
    "c": 0.12162,
    "h": 268.9
  },
  "luminance": 0.06832
}

Semantic roles & 50–950 ramp

primary

#31458D

secondary

#B4A366

accent

#BA50D8

background

#F7F7FA

surface

#EDEDF4

border

#C8C8CE

text

#090810

muted

#7B7B7F

Preview Lab

Preview with #31458D

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

Preview Lab → · Contrast checker → · Palette generator →