#31227E#31227E

#31227E is a dark, vivid blue. Relative luminance 0.033; OKLCH L 33.6% C 0.147 H 282.5°. Best body text is #FFFFFF at 12.65:1 contrast (WCAG AA passes).

Color values

HEX	#31227E
RGB	rgb(49, 34, 126)
HSL	hsl(250, 58%, 31%)
HSV	hsv(250, 73%, 49%)
CMYK	cmyk(61.1%, 73%, 0%, 50.6%)
CIE-LAB	lab(21.22, 34.17, -49.66)
CIE-LCH	lch(21.22, 60.29, 304.53°)
OKLab	oklab(33.57% 0.0318 -0.1431)
OKLCH	oklch(33.57% 0.147 282.5)
XYZ	xyz(5.6034, 3.3030, 20.0769)
Luminance	0.0330 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#31227E #6F7E22

analogous

#22417E #31227E #5F227E

triadic

#31227E #7E3122 #227E31

tetradic

#31227E #7E2241 #6F7E22 #227E5F

square

#31227E #7E2241 #6F7E22 #227E5F

split-complementary

#31227E #7E5F22 #417E22

monochromatic

#0C081E #1E154E #31227E #442FAE #614CCF

Accessibility & contrast

On white

12.65

#31227E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.66

#31227E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #31227E

12.65:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##31227E	#FFFFFF	#000000	##FFFFFF
##31227E	1.00	12.65	1.66	12.65
#FFFFFF	12.65	1.00	21.00	1.00
#000000	1.66	21.00	1.00	21.00
##FFFFFF	12.65	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003681

Deuteranopia (green-blind)

#00307C

Tritanopia (blue-blind)

#003B4D

Achromatopsia (no color)

#333333

Design tokens & code

CSS

--color: #31227e;
/* rgb */ color: rgb(49, 34, 126);
/* oklch */ color: oklch(33.6% 0.147 282.5);

Tailwind

colors: {
  custom: {
    50: '#735fa4',
    500: '#31227e',
    950: '#000000',
  },
}

SCSS

$custom: #31227e;
$custom-light: #735fa4;
$custom-dark: #000000;

JSON

{
  "hex": "#31227e",
  "rgb": {
    "r": 49,
    "g": 34,
    "b": 126
  },
  "hsl": {
    "h": 249.783,
    "s": 57.5,
    "l": 31.373
  },
  "oklch": {
    "l": 0.33566,
    "c": 0.14656,
    "h": 282.5
  },
  "luminance": 0.03303
}

Semantic roles & 50–950 ramp

primary

#31227E

secondary

#A0B14B

accent

#E147C8

background

#F7F5FA

surface

#EDE9F4

border

#C8C5CE

text

#09040F

muted

#7B797F

Preview Lab

Preview with #31227E

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

Preview Lab → · Contrast checker → · Palette generator →