#31327C#31327C

#31327C is a dark, vivid blue. Relative luminance 0.044; OKLCH L 36.2% C 0.123 H 277.8°. Best body text is #FFFFFF at 11.18:1 contrast (WCAG AA passes).

Color values

HEX	#31327C
RGB	rgb(49, 50, 124)
HSL	hsl(239, 43%, 34%)
HSV	hsv(239, 60%, 49%)
CMYK	cmyk(60.5%, 59.7%, 0%, 51.4%)
CIE-LAB	lab(24.92, 23.20, -42.37)
CIE-LCH	lch(24.92, 48.30, 298.71°)
OKLab	oklab(36.21% 0.0166 -0.1216)
OKLCH	oklch(36.21% 0.123 277.8)
XYZ	xyz(6.0442, 4.3890, 19.5935)
Luminance	0.0439 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#31327C #7C7B31

analogous

#31587C #31327C #56317C

triadic

#31327C #7C3132 #327C31

tetradic

#31327C #7C3158 #7C7B31 #317C56

square

#31327C #7C3158 #7C7B31 #317C56

split-complementary

#31327C #7C5631 #587C31

monochromatic

#0E0F24 #202050 #31327C #4244A8 #6566C2

Accessibility & contrast

On white

11.18

#31327C on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.88

#31327C on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #31327C

11.18:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##31327C	#FFFFFF	#000000	##FFFFFF
##31327C	1.00	11.18	1.88	11.18
#FFFFFF	11.18	1.00	21.00	1.00
#000000	1.88	21.00	1.00	21.00
##FFFFFF	11.18	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003E7E

Deuteranopia (green-blind)

#00387A

Tritanopia (blue-blind)

#004452

Achromatopsia (no color)

#3B3B3B

Design tokens & code

CSS

--color: #31327c;
/* rgb */ color: rgb(49, 50, 124);
/* oklch */ color: oklch(36.2% 0.123 277.8);

Tailwind

colors: {
  custom: {
    50: '#716aa2',
    500: '#31327c',
    950: '#000000',
  },
}

SCSS

$custom: #31327c;
$custom-light: #716aa2;
$custom-dark: #000000;

JSON

{
  "hex": "#31327c",
  "rgb": {
    "r": 49,
    "g": 50,
    "b": 124
  },
  "hsl": {
    "h": 239.2,
    "s": 43.353,
    "l": 33.922
  },
  "oklch": {
    "l": 0.36206,
    "c": 0.12271,
    "h": 277.8
  },
  "luminance": 0.04389
}

Semantic roles & 50–950 ramp

primary

#31327C

secondary

#AAA95F

accent

#D155D3

background

#F7F6FA

surface

#EDEBF4

border

#C8C6CE

text

#08060F

muted

#7B7A7F

Preview Lab

Preview with #31327C

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

Preview Lab → · Contrast checker → · Palette generator →