#31457D#31457D

#31457D is a dark, moderate blue. Relative luminance 0.064; OKLCH L 40.4% C 0.098 H 267.2°. Best body text is #FFFFFF at 9.22:1 contrast (WCAG AA passes).

Color values

HEX	#31457D
RGB	rgb(49, 69, 125)
HSL	hsl(224, 44%, 34%)
HSV	hsv(224, 61%, 49%)
CMYK	cmyk(60.8%, 44.8%, 0%, 51%)
CIE-LAB	lab(30.37, 10.64, -34.22)
CIE-LCH	lch(30.37, 35.84, 287.27°)
OKLab	oklab(40.35% -0.0048 -0.0974)
OKLCH	oklch(40.35% 0.098 267.2)
XYZ	xyz(7.0952, 6.3893, 20.2574)
Luminance	0.0639 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#31457D #7D6931

analogous

#316B7D #31457D #43317D

triadic

#31457D #7D3145 #457D31

tetradic

#31457D #7D316B #7D6931 #317D43

square

#31457D #7D316B #7D6931 #317D43

split-complementary

#31457D #7D4331 #6B7D31

monochromatic

#0F1425 #202D51 #31457D #425DA9 #667EC3

Accessibility & contrast

On white

9.22

#31457D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.28

#31457D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #31457D

9.22:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##31457D	#FFFFFF	#000000	##FFFFFF
##31457D	1.00	9.22	2.28	9.22
#FFFFFF	9.22	1.00	21.00	1.00
#000000	2.28	21.00	1.00	21.00
##FFFFFF	9.22	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2C4B7F

Deuteranopia (green-blind)

#22447C

Tritanopia (blue-blind)

#00515B

Achromatopsia (no color)

#474747

Design tokens & code

CSS

--color: #31457d;
/* rgb */ color: rgb(49, 69, 125);
/* oklch */ color: oklch(40.4% 0.098 267.2);

Tailwind

colors: {
  custom: {
    50: '#7078a3',
    500: '#31457d',
    950: '#000000',
  },
}

SCSS

$custom: #31457d;
$custom-light: #7078a3;
$custom-dark: #000000;

JSON

{
  "hex": "#31457d",
  "rgb": {
    "r": 49,
    "g": 69,
    "b": 125
  },
  "hsl": {
    "h": 224.211,
    "s": 43.678,
    "l": 34.118
  },
  "oklch": {
    "l": 0.40351,
    "c": 0.09754,
    "h": 267.2
  },
  "luminance": 0.0639
}

Semantic roles & 50–950 ramp

primary

#31457D

secondary

#AA9760

accent

#B254D3

background

#F7F7FA

surface

#EDEDF4

border

#C8C8CE

text

#08080F

muted

#7B7B7F

Preview Lab

Preview with #31457D

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

Preview Lab → · Contrast checker → · Palette generator →