#313C85#313C85

#313C85 is a dark, vivid blue. Relative luminance 0.056; OKLCH L 39.0% C 0.122 H 273.0°. Best body text is #FFFFFF at 9.93:1 contrast (WCAG AA passes).

Color values

HEX	#313C85
RGB	rgb(49, 60, 133)
HSL	hsl(232, 46%, 36%)
HSV	hsv(232, 63%, 52%)
CMYK	cmyk(63.2%, 54.9%, 0%, 47.8%)
CIE-LAB	lab(28.32, 19.68, -42.50)
CIE-LCH	lch(28.32, 46.84, 294.85°)
OKLab	oklab(38.96% 0.0063 -0.1219)
OKLCH	oklch(38.96% 0.122 273)
XYZ	xyz(7.1147, 5.5776, 22.8874)
Luminance	0.0558 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#313C85 #857A31

analogous

#316685 #313C85 #503185

triadic

#313C85 #85313C #3C8531

tetradic

#313C85 #853166 #857A31 #318550

square

#313C85 #853166 #857A31 #318550

split-complementary

#313C85 #855031 #668531

monochromatic

#10142C #212858 #313C85 #4150B2 #6975C8

Accessibility & contrast

On white

9.93

#313C85 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.12

#313C85 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #313C85

9.93:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##313C85	#FFFFFF	#000000	##FFFFFF
##313C85	1.00	9.93	2.12	9.93
#FFFFFF	9.93	1.00	21.00	1.00
#000000	2.12	21.00	1.00	21.00
##FFFFFF	9.93	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0D4788

Deuteranopia (green-blind)

#003F83

Tritanopia (blue-blind)

#004D5A

Achromatopsia (no color)

#434343

Design tokens & code

CSS

--color: #313c85;
/* rgb */ color: rgb(49, 60, 133);
/* oklch */ color: oklch(39.0% 0.122 273.0);

Tailwind

colors: {
  custom: {
    50: '#7271a9',
    500: '#313c85',
    950: '#000000',
  },
}

SCSS

$custom: #313c85;
$custom-light: #7271a9;
$custom-dark: #000000;

JSON

{
  "hex": "#313c85",
  "rgb": {
    "r": 49,
    "g": 60,
    "b": 133
  },
  "hsl": {
    "h": 232.143,
    "s": 46.154,
    "l": 35.686
  },
  "oklch": {
    "l": 0.38964,
    "c": 0.12204,
    "h": 273
  },
  "luminance": 0.05578
}

Semantic roles & 50–950 ramp

primary

#313C85

secondary

#AFA563

accent

#C552D6

background

#F7F6FA

surface

#EDECF4

border

#C8C7CE

text

#080710

muted

#7B7A7F

Preview Lab

Preview with #313C85

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

Preview Lab → · Contrast checker → · Palette generator →