#31327B#31327B

#31327B is a dark, vivid blue. Relative luminance 0.044; OKLCH L 36.1% C 0.121 H 277.9°. Best body text is #FFFFFF at 11.21:1 contrast (WCAG AA passes).

Color values

HEX	#31327B
RGB	rgb(49, 50, 123)
HSL	hsl(239, 43%, 34%)
HSV	hsv(239, 60%, 48%)
CMYK	cmyk(60.2%, 59.3%, 0%, 51.8%)
CIE-LAB	lab(24.84, 22.85, -41.86)
CIE-LCH	lch(24.84, 47.69, 298.62°)
OKLab	oklab(36.12% 0.0166 -0.1201)
OKLCH	oklch(36.12% 0.121 277.9)
XYZ	xyz(5.9812, 4.3638, 19.2622)
Luminance	0.0436 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#31327B #7B7A31

analogous

#31577B #31327B #55317B

triadic

#31327B #7B3132 #327B31

tetradic

#31327B #7B3157 #7B7A31 #317B55

square

#31327B #7B3157 #7B7A31 #317B55

split-complementary

#31327B #7B5531 #577B31

monochromatic

#0E0E23 #20204F #31327B #4244A7 #6566C2

Accessibility & contrast

On white

11.21

#31327B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.87

#31327B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #31327B

11.21:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##31327B	#FFFFFF	#000000	##FFFFFF
##31327B	1.00	11.21	1.87	11.21
#FFFFFF	11.21	1.00	21.00	1.00
#000000	1.87	21.00	1.00	21.00
##FFFFFF	11.21	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003E7D

Deuteranopia (green-blind)

#00387A

Tritanopia (blue-blind)

#024351

Achromatopsia (no color)

#3B3B3B

Design tokens & code

CSS

--color: #31327b;
/* rgb */ color: rgb(49, 50, 123);
/* oklch */ color: oklch(36.1% 0.121 277.9);

Tailwind

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

SCSS

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

JSON

{
  "hex": "#31327b",
  "rgb": {
    "r": 49,
    "g": 50,
    "b": 123
  },
  "hsl": {
    "h": 239.189,
    "s": 43.023,
    "l": 33.725
  },
  "oklch": {
    "l": 0.36123,
    "c": 0.12124,
    "h": 277.9
  },
  "luminance": 0.04364
}

Semantic roles & 50–950 ramp

primary

#31327B

secondary

#A9A85F

accent

#D155D3

background

#F7F6FA

surface

#EDEBF3

border

#C8C6CD

text

#08060F

muted

#7B7A7F

Preview Lab

Preview with #31327B

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

Preview Lab → · Contrast checker → · Palette generator →