#31218F#31218F

#31218F is a dark, vivid blue. Relative luminance 0.037; OKLCH L 35.2% C 0.169 H 279.8°. Best body text is #FFFFFF at 12.04:1 contrast (WCAG AA passes).

Color values

HEX	#31218F
RGB	rgb(49, 33, 143)
HSL	hsl(249, 63%, 35%)
HSV	hsv(249, 77%, 56%)
CMYK	cmyk(65.7%, 76.9%, 0%, 43.9%)
CIE-LAB	lab(22.73, 40.27, -57.84)
CIE-LCH	lch(22.73, 70.48, 304.85°)
OKLab	oklab(35.16% 0.0287 -0.167)
OKLCH	oklch(35.16% 0.169 279.8)
XYZ	xyz(6.7668, 3.7233, 26.3434)
Luminance	0.0372 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#31218F #7F8F21

analogous

#21488F #31218F #68218F

triadic

#31218F #8F3121 #218F31

tetradic

#31218F #8F2148 #7F8F21 #218F68

square

#31218F #8F2148 #7F8F21 #218F68

split-complementary

#31218F #8F6821 #488F21

monochromatic

#0F0A2C #20165D #31218F #422CC1 #6653D7

Accessibility & contrast

On white

12.04

#31218F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.74

#31218F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #31218F

12.04:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##31218F	#FFFFFF	#000000	##FFFFFF
##31218F	1.00	12.04	1.74	12.04
#FFFFFF	12.04	1.00	21.00	1.00
#000000	1.74	21.00	1.00	21.00
##FFFFFF	12.04	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003A92

Deuteranopia (green-blind)

#00328D

Tritanopia (blue-blind)

#004156

Achromatopsia (no color)

#363636

Design tokens & code

CSS

--color: #31218f;
/* rgb */ color: rgb(49, 33, 143);
/* oklch */ color: oklch(35.2% 0.169 279.8);

Tailwind

colors: {
  custom: {
    50: '#765fb1',
    500: '#31218f',
    950: '#000000',
  },
}

SCSS

$custom: #31218f;
$custom-light: #765fb1;
$custom-dark: #000000;

JSON

{
  "hex": "#31218f",
  "rgb": {
    "r": 49,
    "g": 33,
    "b": 143
  },
  "hsl": {
    "h": 248.727,
    "s": 62.5,
    "l": 34.51
  },
  "oklch": {
    "l": 0.35161,
    "c": 0.16941,
    "h": 279.8
  },
  "luminance": 0.03724
}

Semantic roles & 50–950 ramp

primary

#31218F

secondary

#ABBB51

accent

#E642CE

background

#F7F5FB

surface

#EEE9F6

border

#C9C5D0

text

#0A0511

muted

#7C7980

Preview Lab

Preview with #31218F

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

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