#313C83#313C83

#313C83 is a dark, moderate blue. Relative luminance 0.055; OKLCH L 38.8% C 0.119 H 273.0°. Best body text is #FFFFFF at 9.98:1 contrast (WCAG AA passes).

Color values

HEX	#313C83
RGB	rgb(49, 60, 131)
HSL	hsl(232, 46%, 35%)
HSV	hsv(232, 63%, 51%)
CMYK	cmyk(62.6%, 54.2%, 0%, 48.6%)
CIE-LAB	lab(28.18, 18.95, -41.49)
CIE-LCH	lch(28.18, 45.61, 294.55°)
OKLab	oklab(38.81% 0.0062 -0.1189)
OKLCH	oklch(38.81% 0.119 273)
XYZ	xyz(6.9779, 5.5228, 22.1666)
Luminance	0.0552 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#313C83 #837831

analogous

#316583 #313C83 #4F3183

triadic

#313C83 #83313C #3C8331

tetradic

#313C83 #833165 #837831 #31834F

square

#313C83 #833165 #837831 #31834F

split-complementary

#313C83 #834F31 #658331

monochromatic

#10132A #202856 #313C83 #4250B0 #6875C6

Accessibility & contrast

On white

9.98

#313C83 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.10

#313C83 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #313C83

9.98:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##313C83	#FFFFFF	#000000	##FFFFFF
##313C83	1.00	9.98	2.10	9.98
#FFFFFF	9.98	1.00	21.00	1.00
#000000	2.10	21.00	1.00	21.00
##FFFFFF	9.98	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#114686

Deuteranopia (green-blind)

#003F82

Tritanopia (blue-blind)

#004C59

Achromatopsia (no color)

#424242

Design tokens & code

CSS

--color: #313c83;
/* rgb */ color: rgb(49, 60, 131);
/* oklch */ color: oklch(38.8% 0.119 273.0);

Tailwind

colors: {
  custom: {
    50: '#7271a8',
    500: '#313c83',
    950: '#000000',
  },
}

SCSS

$custom: #313c83;
$custom-light: #7271a8;
$custom-dark: #000000;

JSON

{
  "hex": "#313c83",
  "rgb": {
    "r": 49,
    "g": 60,
    "b": 131
  },
  "hsl": {
    "h": 231.951,
    "s": 45.556,
    "l": 35.294
  },
  "oklch": {
    "l": 0.38808,
    "c": 0.11907,
    "h": 273
  },
  "luminance": 0.05523
}

Semantic roles & 50–950 ramp

primary

#313C83

secondary

#AEA462

accent

#C453D5

background

#F7F6FA

surface

#EDECF4

border

#C8C7CE

text

#08070F

muted

#7B7A7F

Preview Lab

Preview with #313C83

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

Preview Lab → · Contrast checker → · Palette generator →