#313D83#313D83

#313D83 is a dark, moderate blue. Relative luminance 0.056; OKLCH L 39.0% C 0.118 H 272.5°. Best body text is #FFFFFF at 9.88:1 contrast (WCAG AA passes).

Color values

HEX	#313D83
RGB	rgb(49, 61, 131)
HSL	hsl(231, 46%, 35%)
HSV	hsv(231, 63%, 51%)
CMYK	cmyk(62.6%, 53.4%, 0%, 48.6%)
CIE-LAB	lab(28.46, 18.27, -41.04)
CIE-LCH	lch(28.46, 44.92, 294.00°)
OKLab	oklab(39.02% 0.0051 -0.1176)
OKLCH	oklch(39.02% 0.118 272.5)
XYZ	xyz(7.0307, 5.6286, 22.1843)
Luminance	0.0563 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#313D83 #837731

analogous

#316683 #313D83 #4E3183

triadic

#313D83 #83313D #3D8331

tetradic

#313D83 #833166 #837731 #31834E

square

#313D83 #833166 #837731 #31834E

split-complementary

#313D83 #834E31 #668331

monochromatic

#10142A #202856 #313D83 #4252B0 #6876C6

Accessibility & contrast

On white

9.88

#313D83 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.13

#313D83 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #313D83

9.88:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##313D83	#FFFFFF	#000000	##FFFFFF
##313D83	1.00	9.88	2.13	9.88
#FFFFFF	9.88	1.00	21.00	1.00
#000000	2.13	21.00	1.00	21.00
##FFFFFF	9.88	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#154785

Deuteranopia (green-blind)

#004082

Tritanopia (blue-blind)

#004D5A

Achromatopsia (no color)

#434343

Design tokens & code

CSS

--color: #313d83;
/* rgb */ color: rgb(49, 61, 131);
/* oklch */ color: oklch(39.0% 0.118 272.5);

Tailwind

colors: {
  custom: {
    50: '#7272a7',
    500: '#313d83',
    950: '#000000',
  },
}

SCSS

$custom: #313d83;
$custom-light: #7272a7;
$custom-dark: #000000;

JSON

{
  "hex": "#313d83",
  "rgb": {
    "r": 49,
    "g": 61,
    "b": 131
  },
  "hsl": {
    "h": 231.22,
    "s": 45.556,
    "l": 35.294
  },
  "oklch": {
    "l": 0.39019,
    "c": 0.11767,
    "h": 272.5
  },
  "luminance": 0.05629
}

Semantic roles & 50–950 ramp

primary

#313D83

secondary

#AEA362

accent

#C253D5

background

#F7F6FA

surface

#EDECF4

border

#C8C7CE

text

#08070F

muted

#7B7A7F

Preview Lab

Preview with #313D83

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

Preview Lab → · Contrast checker → · Palette generator →