#31317E#31317E

#31317E is a dark, vivid blue. Relative luminance 0.044; OKLCH L 36.2% C 0.127 H 278.0°. Best body text is #FFFFFF at 11.22:1 contrast (WCAG AA passes).

Color values

HEX	#31317E
RGB	rgb(49, 49, 126)
HSL	hsl(240, 44%, 34%)
HSV	hsv(240, 61%, 49%)
CMYK	cmyk(61.1%, 61.1%, 0%, 50.6%)
CIE-LAB	lab(24.81, 24.59, -43.80)
CIE-LCH	lch(24.81, 50.23, 299.31°)
OKLab	oklab(36.18% 0.0176 -0.1258)
OKLCH	oklch(36.18% 0.127 278)
XYZ	xyz(6.1296, 4.3555, 20.2523)
Luminance	0.0436 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#31317E #7E7E31

analogous

#31587E #31317E #58317E

triadic

#31317E #7E3131 #317E31

tetradic

#31317E #7E3158 #7E7E31 #317E58

square

#31317E #7E3158 #7E7E31 #317E58

split-complementary

#31317E #7E5831 #587E31

monochromatic

#0F0F26 #202052 #31317E #4242AA #6666C3

Accessibility & contrast

On white

11.22

#31317E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.87

#31317E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #31317E

11.22:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##31317E	#FFFFFF	#000000	##FFFFFF
##31317E	1.00	11.22	1.87	11.22
#FFFFFF	11.22	1.00	21.00	1.00
#000000	1.87	21.00	1.00	21.00
##FFFFFF	11.22	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003E81

Deuteranopia (green-blind)

#00387C

Tritanopia (blue-blind)

#004452

Achromatopsia (no color)

#3B3B3B

Design tokens & code

CSS

--color: #31317e;
/* rgb */ color: rgb(49, 49, 126);
/* oklch */ color: oklch(36.2% 0.127 278.0);

Tailwind

colors: {
  custom: {
    50: '#7269a4',
    500: '#31317e',
    950: '#000000',
  },
}

SCSS

$custom: #31317e;
$custom-light: #7269a4;
$custom-dark: #000000;

JSON

{
  "hex": "#31317e",
  "rgb": {
    "r": 49,
    "g": 49,
    "b": 126
  },
  "hsl": {
    "h": 240,
    "s": 44,
    "l": 34.314
  },
  "oklch": {
    "l": 0.36179,
    "c": 0.12703,
    "h": 278
  },
  "luminance": 0.04356
}

Semantic roles & 50–950 ramp

primary

#31317E

secondary

#ABAB60

accent

#D454D4

background

#F7F6FA

surface

#EDEBF4

border

#C8C6CE

text

#08060F

muted

#7B7A7F

Preview Lab

Preview with #31317E

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

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