#31398D#31398D

#31398D is a dark, vivid blue. Relative luminance 0.055; OKLCH L 39.0% C 0.138 H 274.0°. Best body text is #FFFFFF at 10.00:1 contrast (WCAG AA passes).

Color values

HEX	#31398D
RGB	rgb(49, 57, 141)
HSL	hsl(235, 48%, 37%)
HSV	hsv(235, 65%, 55%)
CMYK	cmyk(65.2%, 59.6%, 0%, 44.7%)
CIE-LAB	lab(28.12, 24.63, -47.79)
CIE-LCH	lch(28.12, 53.76, 297.27°)
OKLab	oklab(39.01% 0.0096 -0.1375)
OKLCH	oklch(39.01% 0.138 274)
XYZ	xyz(7.5359, 5.5017, 25.8589)
Luminance	0.0550 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#31398D #8D8531

analogous

#31678D #31398D #57318D

triadic

#31398D #8D3139 #398D31

tetradic

#31398D #8D3167 #8D8531 #318D57

square

#31398D #8D3167 #8D8531 #318D57

split-complementary

#31398D #8D5731 #678D31

monochromatic

#111432 #212760 #31398D #414BBA #6C75CC

Accessibility & contrast

On white

10.00

#31398D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.10

#31398D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #31398D

10.00:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##31398D	#FFFFFF	#000000	##FFFFFF
##31398D	1.00	10.00	2.10	10.00
#FFFFFF	10.00	1.00	21.00	1.00
#000000	2.10	21.00	1.00	21.00
##FFFFFF	10.00	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004690

Deuteranopia (green-blind)

#003E8B

Tritanopia (blue-blind)

#004D5D

Achromatopsia (no color)

#424242

Design tokens & code

CSS

--color: #31398d;
/* rgb */ color: rgb(49, 57, 141);
/* oklch */ color: oklch(39.0% 0.138 274.0);

Tailwind

colors: {
  custom: {
    50: '#746faf',
    500: '#31398d',
    950: '#000000',
  },
}

SCSS

$custom: #31398d;
$custom-light: #746faf;
$custom-dark: #000000;

JSON

{
  "hex": "#31398d",
  "rgb": {
    "r": 49,
    "g": 57,
    "b": 141
  },
  "hsl": {
    "h": 234.783,
    "s": 48.421,
    "l": 37.255
  },
  "oklch": {
    "l": 0.39007,
    "c": 0.1378,
    "h": 274
  },
  "luminance": 0.05502
}

Semantic roles & 50–950 ramp

primary

#31398D

secondary

#B4AD66

accent

#CC50D8

background

#F7F6FA

surface

#EDECF5

border

#C8C7CF

text

#090710

muted

#7B7A7F

Preview Lab

Preview with #31398D

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

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