#313571#313571

#313571 is a dark, moderate blue. Relative luminance 0.044; OKLCH L 36.0% C 0.102 H 277.1°. Best body text is #FFFFFF at 11.18:1 contrast (WCAG AA passes).

Color values

HEX	#313571
RGB	rgb(49, 53, 113)
HSL	hsl(236, 40%, 32%)
HSV	hsv(236, 57%, 44%)
CMYK	cmyk(56.6%, 53.1%, 0%, 55.7%)
CIE-LAB	lab(24.92, 17.22, -35.37)
CIE-LCH	lch(24.92, 39.34, 295.97°)
OKLab	oklab(35.95% 0.0126 -0.101)
OKLCH	oklch(35.95% 0.102 277.1)
XYZ	xyz(5.5194, 4.3911, 16.1763)
Luminance	0.0439 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#313571 #716D31

analogous

#315571 #313571 #4D3171

triadic

#313571 #713135 #357131

tetradic

#313571 #713155 #716D31 #31714D

square

#313571 #713155 #716D31 #31714D

split-complementary

#313571 #714D31 #557131

monochromatic

#0C0D1C #1E2146 #313571 #44499C #6267BB

Accessibility & contrast

On white

11.18

#313571 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.88

#313571 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #313571

11.18:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##313571	#FFFFFF	#000000	##FFFFFF
##313571	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)

#173E73

Deuteranopia (green-blind)

#0E3970

Tritanopia (blue-blind)

#13424D

Achromatopsia (no color)

#3B3B3B

Design tokens & code

CSS

--color: #313571;
/* rgb */ color: rgb(49, 53, 113);
/* oklch */ color: oklch(36.0% 0.102 277.1);

Tailwind

colors: {
  custom: {
    50: '#6f6c9a',
    500: '#313571',
    950: '#000000',
  },
}

SCSS

$custom: #313571;
$custom-light: #6f6c9a;
$custom-dark: #000000;

JSON

{
  "hex": "#313571",
  "rgb": {
    "r": 49,
    "g": 53,
    "b": 113
  },
  "hsl": {
    "h": 236.25,
    "s": 39.506,
    "l": 31.765
  },
  "oklch": {
    "l": 0.35951,
    "c": 0.10175,
    "h": 277.1
  },
  "luminance": 0.04391
}

Semantic roles & 50–950 ramp

primary

#313571

secondary

#A29E5C

accent

#C858CF

background

#F6F6F9

surface

#ECEBF2

border

#C7C6CC

text

#08060E

muted

#7B7A7E

Preview Lab

Preview with #313571

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

Preview Lab → · Contrast checker → · Palette generator →