#31279F#31279F

#31279F is a dark, vivid blue. Relative luminance 0.046; OKLCH L 37.7% C 0.183 H 276.7°. Best body text is #FFFFFF at 10.93:1 contrast (WCAG AA passes).

Color values

HEX	#31279F
RGB	rgb(49, 39, 159)
HSL	hsl(245, 61%, 39%)
HSV	hsv(245, 75%, 62%)
CMYK	cmyk(69.2%, 75.5%, 0%, 37.6%)
CIE-LAB	lab(25.58, 42.13, -62.98)
CIE-LCH	lch(25.58, 75.77, 303.78°)
OKLab	oklab(37.67% 0.0213 -0.182)
OKLCH	oklch(37.67% 0.183 276.7)
XYZ	xyz(8.2481, 4.6065, 33.2486)
Luminance	0.0461 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#31279F #959F27

analogous

#27599F #31279F #6D279F

triadic

#31279F #9F3127 #279F31

tetradic

#31279F #9F2759 #959F27 #279F6D

square

#31279F #9F2759 #959F27 #279F6D

split-complementary

#31279F #9F6D27 #599F27

monochromatic

#130F3D #221B6E #31279F #4236CE #7067DA

Accessibility & contrast

On white

10.93

#31279F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.92

#31279F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #31279F

10.93:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##31279F	#FFFFFF	#000000	##FFFFFF
##31279F	1.00	10.93	1.92	10.93
#FFFFFF	10.93	1.00	21.00	1.00
#000000	1.92	21.00	1.00	21.00
##FFFFFF	10.93	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0042A2

Deuteranopia (green-blind)

#00379D

Tritanopia (blue-blind)

#004A61

Achromatopsia (no color)

#3D3D3D

Design tokens & code

CSS

--color: #31279f;
/* rgb */ color: rgb(49, 39, 159);
/* oklch */ color: oklch(37.7% 0.183 276.7);

Tailwind

colors: {
  custom: {
    50: '#7963bd',
    500: '#31279f',
    950: '#000000',
  },
}

SCSS

$custom: #31279f;
$custom-light: #7963bd;
$custom-dark: #000000;

JSON

{
  "hex": "#31279f",
  "rgb": {
    "r": 49,
    "g": 39,
    "b": 159
  },
  "hsl": {
    "h": 245,
    "s": 60.606,
    "l": 38.824
  },
  "oklch": {
    "l": 0.37672,
    "c": 0.18325,
    "h": 276.7
  },
  "luminance": 0.04607
}

Semantic roles & 50–950 ramp

primary

#31279F

secondary

#B8C062

accent

#E444D6

background

#F8F6FB

surface

#EFEBF7

border

#CAC6D0

text

#0A0512

muted

#7C7A81

Preview Lab

Preview with #31279F

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

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