#31437E#31437E

#31437E is a dark, moderate blue. Relative luminance 0.062; OKLCH L 40.0% C 0.102 H 268.7°. Best body text is #FFFFFF at 9.40:1 contrast (WCAG AA passes).

Color values

HEX	#31437E
RGB	rgb(49, 67, 126)
HSL	hsl(226, 44%, 34%)
HSV	hsv(226, 61%, 49%)
CMYK	cmyk(61.1%, 46.8%, 0%, 50.6%)
CIE-LAB	lab(29.84, 12.36, -35.69)
CIE-LCH	lch(29.84, 37.77, 289.10°)
OKLab	oklab(39.97% -0.0023 -0.1018)
OKLCH	oklch(39.97% 0.102 268.7)
XYZ	xyz(7.0384, 6.1731, 20.5552)
Luminance	0.0617 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#31437E #7E6C31

analogous

#316A7E #31437E #46317E

triadic

#31437E #7E3143 #437E31

tetradic

#31437E #7E316A #7E6C31 #317E46

square

#31437E #7E316A #7E6C31 #317E46

split-complementary

#31437E #7E4631 #6A7E31

monochromatic

#0F1426 #202C52 #31437E #425AAA #667CC3

Accessibility & contrast

On white

9.40

#31437E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.23

#31437E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #31437E

9.40:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##31437E	#FFFFFF	#000000	##FFFFFF
##31437E	1.00	9.40	2.23	9.40
#FFFFFF	9.40	1.00	21.00	1.00
#000000	2.23	21.00	1.00	21.00
##FFFFFF	9.40	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#284A80

Deuteranopia (green-blind)

#1D437D

Tritanopia (blue-blind)

#00505A

Achromatopsia (no color)

#464646

Design tokens & code

CSS

--color: #31437e;
/* rgb */ color: rgb(49, 67, 126);
/* oklch */ color: oklch(40.0% 0.102 268.7);

Tailwind

colors: {
  custom: {
    50: '#7076a4',
    500: '#31437e',
    950: '#000000',
  },
}

SCSS

$custom: #31437e;
$custom-light: #7076a4;
$custom-dark: #000000;

JSON

{
  "hex": "#31437e",
  "rgb": {
    "r": 49,
    "g": 67,
    "b": 126
  },
  "hsl": {
    "h": 225.974,
    "s": 44,
    "l": 34.314
  },
  "oklch": {
    "l": 0.39966,
    "c": 0.10179,
    "h": 268.7
  },
  "luminance": 0.06174
}

Semantic roles & 50–950 ramp

primary

#31437E

secondary

#AB9960

accent

#B654D4

background

#F7F7FA

surface

#EDEDF4

border

#C8C8CE

text

#08080F

muted

#7B7B7F

Preview Lab

Preview with #31437E

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

Preview Lab → · Contrast checker → · Palette generator →