#31336B#31336B

#31336B is a dark, moderate blue. Relative luminance 0.041; OKLCH L 35.1% C 0.095 H 278.7°. Best body text is #FFFFFF at 11.56:1 contrast (WCAG AA passes).

Color values

HEX	#31336B
RGB	rgb(49, 51, 107)
HSL	hsl(238, 37%, 31%)
HSV	hsv(238, 54%, 42%)
CMYK	cmyk(54.2%, 52.3%, 0%, 58%)
CIE-LAB	lab(23.94, 16.47, -33.10)
CIE-LCH	lch(23.94, 36.97, 296.46°)
OKLab	oklab(35.08% 0.0145 -0.0943)
OKLCH	oklch(35.08% 0.095 278.7)
XYZ	xyz(5.1035, 4.0819, 14.4260)
Luminance	0.0408 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#31336B #6B6931

analogous

#31506B #31336B #4C316B

triadic

#31336B #6B3133 #336B31

tetradic

#31336B #6B3150 #6B6931 #316B4C

square

#31336B #6B3150 #6B6931 #316B4C

split-complementary

#31336B #6B4C31 #506B31

monochromatic

#0B0B17 #1E1F41 #31336B #444795 #6063B6

Accessibility & contrast

On white

11.56

#31336B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.82

#31336B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #31336B

11.56:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##31336B	#FFFFFF	#000000	##FFFFFF
##31336B	1.00	11.56	1.82	11.56
#FFFFFF	11.56	1.00	21.00	1.00
#000000	1.82	21.00	1.00	21.00
##FFFFFF	11.56	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#183B6D

Deuteranopia (green-blind)

#12376A

Tritanopia (blue-blind)

#193F4A

Achromatopsia (no color)

#393939

Design tokens & code

CSS

--color: #31336b;
/* rgb */ color: rgb(49, 51, 107);
/* oklch */ color: oklch(35.1% 0.095 278.7);

Tailwind

colors: {
  custom: {
    50: '#6e6a96',
    500: '#31336b',
    950: '#000000',
  },
}

SCSS

$custom: #31336b;
$custom-light: #6e6a96;
$custom-dark: #000000;

JSON

{
  "hex": "#31336b",
  "rgb": {
    "r": 49,
    "g": 51,
    "b": 107
  },
  "hsl": {
    "h": 237.931,
    "s": 37.179,
    "l": 30.588
  },
  "oklch": {
    "l": 0.35075,
    "c": 0.09541,
    "h": 278.7
  },
  "luminance": 0.04082
}

Semantic roles & 50–950 ramp

primary

#31336B

secondary

#9C9A5C

accent

#C95BCD

background

#F6F6F9

surface

#ECEBF2

border

#C7C6CC

text

#07060D

muted

#7A7A7E

Preview Lab

Preview with #31336B

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

Preview Lab → · Contrast checker → · Palette generator →