#313C84#313C84

#313C84 is a dark, vivid blue. Relative luminance 0.056; OKLCH L 38.9% C 0.121 H 273.0°. Best body text is #FFFFFF at 9.95:1 contrast (WCAG AA passes).

Color values

HEX	#313C84
RGB	rgb(49, 60, 132)
HSL	hsl(232, 46%, 35%)
HSV	hsv(232, 63%, 52%)
CMYK	cmyk(62.9%, 54.5%, 0%, 48.2%)
CIE-LAB	lab(28.25, 19.32, -42.00)
CIE-LCH	lch(28.25, 46.23, 294.70°)
OKLab	oklab(38.89% 0.0062 -0.1204)
OKLCH	oklch(38.89% 0.121 273)
XYZ	xyz(7.0460, 5.5501, 22.5253)
Luminance	0.0555 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#313C84 #847931

analogous

#316584 #313C84 #4F3184

triadic

#313C84 #84313C #3C8431

tetradic

#313C84 #843165 #847931 #31844F

square

#313C84 #843165 #847931 #31844F

split-complementary

#313C84 #844F31 #658431

monochromatic

#10132B #202857 #313C84 #4250B1 #6875C7

Accessibility & contrast

On white

9.95

#313C84 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.11

#313C84 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #313C84

9.95:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##313C84	#FFFFFF	#000000	##FFFFFF
##313C84	1.00	9.95	2.11	9.95
#FFFFFF	9.95	1.00	21.00	1.00
#000000	2.11	21.00	1.00	21.00
##FFFFFF	9.95	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0F4687

Deuteranopia (green-blind)

#003F83

Tritanopia (blue-blind)

#004D5A

Achromatopsia (no color)

#434343

Design tokens & code

CSS

--color: #313c84;
/* rgb */ color: rgb(49, 60, 132);
/* oklch */ color: oklch(38.9% 0.121 273.0);

Tailwind

colors: {
  custom: {
    50: '#7271a8',
    500: '#313c84',
    950: '#000000',
  },
}

SCSS

$custom: #313c84;
$custom-light: #7271a8;
$custom-dark: #000000;

JSON

{
  "hex": "#313c84",
  "rgb": {
    "r": 49,
    "g": 60,
    "b": 132
  },
  "hsl": {
    "h": 232.048,
    "s": 45.856,
    "l": 35.49
  },
  "oklch": {
    "l": 0.38886,
    "c": 0.12055,
    "h": 273
  },
  "luminance": 0.05551
}

Semantic roles & 50–950 ramp

primary

#313C84

secondary

#AEA462

accent

#C452D6

background

#F7F6FA

surface

#EDECF4

border

#C8C7CE

text

#080710

muted

#7B7A7F

Preview Lab

Preview with #313C84

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

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