#31436B#31436B

#31436B is a dark, moderate blue. Relative luminance 0.057; OKLCH L 38.7% C 0.072 H 264.9°. Best body text is #FFFFFF at 9.79:1 contrast (WCAG AA passes).

Color values

HEX	#31436B
RGB	rgb(49, 67, 107)
HSL	hsl(221, 37%, 31%)
HSV	hsv(221, 54%, 42%)
CMYK	cmyk(54.2%, 37.4%, 0%, 58%)
CIE-LAB	lab(28.72, 5.53, -25.50)
CIE-LCH	lch(28.72, 26.10, 282.23°)
OKLab	oklab(38.73% -0.0065 -0.0719)
OKLCH	oklch(38.73% 0.072 264.9)
XYZ	xyz(5.9267, 5.7284, 14.7004)
Luminance	0.0573 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#31436B #6B5931

analogous

#31606B #31436B #3C316B

triadic

#31436B #6B3143 #436B31

tetradic

#31436B #6B3160 #6B5931 #316B3C

square

#31436B #6B3160 #6B5931 #316B3C

split-complementary

#31436B #6B3C31 #606B31

monochromatic

#0B0E17 #1E2941 #31436B #445D95 #607BB6

Accessibility & contrast

On white

9.79

#31436B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.15

#31436B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #31436B

9.79:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##31436B	#FFFFFF	#000000	##FFFFFF
##31436B	1.00	9.79	2.15	9.79
#FFFFFF	9.79	1.00	21.00	1.00
#000000	2.15	21.00	1.00	21.00
##FFFFFF	9.79	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#33476D

Deuteranopia (green-blind)

#2D416A

Tritanopia (blue-blind)

#164C52

Achromatopsia (no color)

#444444

Design tokens & code

CSS

--color: #31436b;
/* rgb */ color: rgb(49, 67, 107);
/* oklch */ color: oklch(38.7% 0.072 264.9);

Tailwind

colors: {
  custom: {
    50: '#6d7695',
    500: '#31436b',
    950: '#000000',
  },
}

SCSS

$custom: #31436b;
$custom-light: #6d7695;
$custom-dark: #000000;

JSON

{
  "hex": "#31436b",
  "rgb": {
    "r": 49,
    "g": 67,
    "b": 107
  },
  "hsl": {
    "h": 221.379,
    "s": 37.179,
    "l": 30.588
  },
  "oklch": {
    "l": 0.3873,
    "c": 0.07224,
    "h": 264.9
  },
  "luminance": 0.05729
}

Semantic roles & 50–950 ramp

primary

#31436B

secondary

#9C885C

accent

#AA5BCD

background

#F6F7F9

surface

#ECEDF1

border

#C7C8CB

text

#07080D

muted

#7A7B7E

Preview Lab

Preview with #31436B

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

Preview Lab → · Contrast checker → · Palette generator →