#31489D#31489D

#31489D is a dark, vivid blue. Relative luminance 0.077; OKLCH L 43.3% C 0.141 H 268.5°. Best body text is #FFFFFF at 8.25:1 contrast (WCAG AA passes).

Color values

HEX	#31489D
RGB	rgb(49, 72, 157)
HSL	hsl(227, 52%, 40%)
HSV	hsv(227, 69%, 62%)
CMYK	cmyk(68.8%, 54.1%, 0%, 38.4%)
CIE-LAB	lab(33.40, 20.49, -49.01)
CIE-LCH	lch(33.40, 53.12, 292.69°)
OKLab	oklab(43.34% -0.0037 -0.1408)
OKLCH	oklch(43.34% 0.141 268.5)
XYZ	xyz(9.6677, 7.7211, 32.8726)
Luminance	0.0772 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#31489D #9D8631

analogous

#317E9D #31489D #50319D

triadic

#31489D #9D3148 #489D31

tetradic

#31489D #9D317E #9D8631 #319D50

square

#31489D #9D317E #9D8631 #319D50

split-complementary

#31489D #9D5031 #7E9D31

monochromatic

#141D40 #22336E #31489D #4661C5 #7589D4

Accessibility & contrast

On white

8.25

#31489D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.54

#31489D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #31489D

8.25:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##31489D	#FFFFFF	#000000	##FFFFFF
##31489D	1.00	8.25	2.54	8.25
#FFFFFF	8.25	1.00	21.00	1.00
#000000	2.54	21.00	1.00	21.00
##FFFFFF	8.25	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0C54A0

Deuteranopia (green-blind)

#004A9B

Tritanopia (blue-blind)

#005C6B

Achromatopsia (no color)

#4F4F4F

Design tokens & code

CSS

--color: #31489d;
/* rgb */ color: rgb(49, 72, 157);
/* oklch */ color: oklch(43.3% 0.141 268.5);

Tailwind

colors: {
  custom: {
    50: '#767abb',
    500: '#31489d',
    950: '#000000',
  },
}

SCSS

$custom: #31489d;
$custom-light: #767abb;
$custom-dark: #000000;

JSON

{
  "hex": "#31489d",
  "rgb": {
    "r": 49,
    "g": 72,
    "b": 157
  },
  "hsl": {
    "h": 227.222,
    "s": 52.427,
    "l": 40.392
  },
  "oklch": {
    "l": 0.43343,
    "c": 0.1409,
    "h": 268.5
  },
  "luminance": 0.07722
}

Semantic roles & 50–950 ramp

primary

#31489D

secondary

#BCAB6E

accent

#BD4CDC

background

#F7F7FB

surface

#EEEDF6

border

#C9C8D0

text

#0A0912

muted

#7C7B81

Preview Lab

Preview with #31489D

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

Preview Lab → · Contrast checker → · Palette generator →