#313F85#313F85

#313F85 is a dark, moderate blue. Relative luminance 0.059; OKLCH L 39.6% C 0.118 H 271.5°. Best body text is #FFFFFF at 9.63:1 contrast (WCAG AA passes).

Color values

HEX	#313F85
RGB	rgb(49, 63, 133)
HSL	hsl(230, 46%, 36%)
HSV	hsv(230, 63%, 52%)
CMYK	cmyk(63.2%, 52.6%, 0%, 47.8%)
CIE-LAB	lab(29.16, 17.65, -41.15)
CIE-LCH	lch(29.16, 44.77, 293.21°)
OKLab	oklab(39.6% 0.0031 -0.1178)
OKLCH	oklch(39.6% 0.118 271.5)
XYZ	xyz(7.2764, 5.9008, 22.9413)
Luminance	0.0590 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#313F85 #857731

analogous

#316985 #313F85 #4D3185

triadic

#313F85 #85313F #3F8531

tetradic

#313F85 #853169 #857731 #31854D

square

#313F85 #853169 #857731 #31854D

split-complementary

#313F85 #854D31 #698531

monochromatic

#10152C #212A58 #313F85 #4154B2 #6979C8

Accessibility & contrast

On white

9.63

#313F85 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.18

#313F85 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #313F85

9.63:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##313F85	#FFFFFF	#000000	##FFFFFF
##313F85	1.00	9.63	2.18	9.63
#FFFFFF	9.63	1.00	21.00	1.00
#000000	2.18	21.00	1.00	21.00
##FFFFFF	9.63	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#184987

Deuteranopia (green-blind)

#024184

Tritanopia (blue-blind)

#004F5B

Achromatopsia (no color)

#454545

Design tokens & code

CSS

--color: #313f85;
/* rgb */ color: rgb(49, 63, 133);
/* oklch */ color: oklch(39.6% 0.118 271.5);

Tailwind

colors: {
  custom: {
    50: '#7273a9',
    500: '#313f85',
    950: '#000000',
  },
}

SCSS

$custom: #313f85;
$custom-light: #7273a9;
$custom-dark: #000000;

JSON

{
  "hex": "#313f85",
  "rgb": {
    "r": 49,
    "g": 63,
    "b": 133
  },
  "hsl": {
    "h": 230,
    "s": 46.154,
    "l": 35.686
  },
  "oklch": {
    "l": 0.39597,
    "c": 0.11789,
    "h": 271.5
  },
  "luminance": 0.05901
}

Semantic roles & 50–950 ramp

primary

#313F85

secondary

#AFA263

accent

#C052D6

background

#F7F7FA

surface

#EDEDF4

border

#C8C8CE

text

#080810

muted

#7B7B7F

Preview Lab

Preview with #313F85

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

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