#31389C#31389C

#31389C is a dark, vivid blue. Relative luminance 0.059; OKLCH L 40.1% C 0.160 H 273.6°. Best body text is #FFFFFF at 9.65:1 contrast (WCAG AA passes).

Color values

HEX	#31389C
RGB	rgb(49, 56, 156)
HSL	hsl(236, 52%, 40%)
HSV	hsv(236, 69%, 61%)
CMYK	cmyk(68.6%, 64.1%, 0%, 38.8%)
CIE-LAB	lab(29.11, 30.72, -55.37)
CIE-LCH	lch(29.11, 63.32, 299.02°)
OKLab	oklab(40.13% 0.01 -0.1597)
OKLCH	oklch(40.13% 0.16 273.6)
XYZ	xyz(8.6795, 5.8808, 32.1237)
Luminance	0.0588 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#31389C #9C9531

analogous

#316D9C #31389C #60319C

triadic

#31389C #9C3138 #389C31

tetradic

#31389C #9C316D #9C9531 #319C60

square

#31389C #9C316D #9C9531 #319C60

split-complementary

#31389C #9C6031 #6D9C31

monochromatic

#14173F #22276D #31389C #454EC5 #747AD3

Accessibility & contrast

On white

9.65

#31389C on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.18

#31389C on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #31389C

9.65:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##31389C	#FFFFFF	#000000	##FFFFFF
##31389C	1.00	9.65	2.18	9.65
#FFFFFF	9.65	1.00	21.00	1.00
#000000	2.18	21.00	1.00	21.00
##FFFFFF	9.65	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004A9F

Deuteranopia (green-blind)

#00409A

Tritanopia (blue-blind)

#005264

Achromatopsia (no color)

#454545

Design tokens & code

CSS

--color: #31389c;
/* rgb */ color: rgb(49, 56, 156);
/* oklch */ color: oklch(40.1% 0.160 273.6);

Tailwind

colors: {
  custom: {
    50: '#776eba',
    500: '#31389c',
    950: '#000000',
  },
}

SCSS

$custom: #31389c;
$custom-light: #776eba;
$custom-dark: #000000;

JSON

{
  "hex": "#31389c",
  "rgb": {
    "r": 49,
    "g": 56,
    "b": 156
  },
  "hsl": {
    "h": 236.075,
    "s": 52.195,
    "l": 40.196
  },
  "oklch": {
    "l": 0.40128,
    "c": 0.16005,
    "h": 273.6
  },
  "luminance": 0.05882
}

Semantic roles & 50–950 ramp

primary

#31389C

secondary

#BBB66D

accent

#D24CDC

background

#F7F6FB

surface

#EEECF6

border

#C9C7D0

text

#0A0712

muted

#7C7A81

Preview Lab

Preview with #31389C

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

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