#313E83#313E83

#313E83 is a dark, moderate blue. Relative luminance 0.057; OKLCH L 39.2% C 0.116 H 272.0°. Best body text is #FFFFFF at 9.78:1 contrast (WCAG AA passes).

Color values

HEX	#313E83
RGB	rgb(49, 62, 131)
HSL	hsl(230, 46%, 35%)
HSV	hsv(230, 63%, 51%)
CMYK	cmyk(62.6%, 52.7%, 0%, 48.6%)
CIE-LAB	lab(28.74, 17.59, -40.58)
CIE-LCH	lch(28.74, 44.23, 293.43°)
OKLab	oklab(39.23% 0.004 -0.1162)
OKLCH	oklch(39.23% 0.116 272)
XYZ	xyz(7.0846, 5.7363, 22.2022)
Luminance	0.0574 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#313E83 #837631

analogous

#316783 #313E83 #4D3183

triadic

#313E83 #83313E #3E8331

tetradic

#313E83 #833167 #837631 #31834D

square

#313E83 #833167 #837631 #31834D

split-complementary

#313E83 #834D31 #678331

monochromatic

#10142A #202956 #313E83 #4253B0 #6877C6

Accessibility & contrast

On white

9.78

#313E83 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.15

#313E83 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #313E83

9.78:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##313E83	#FFFFFF	#000000	##FFFFFF
##313E83	1.00	9.78	2.15	9.78
#FFFFFF	9.78	1.00	21.00	1.00
#000000	2.15	21.00	1.00	21.00
##FFFFFF	9.78	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#184885

Deuteranopia (green-blind)

#034082

Tritanopia (blue-blind)

#004E5A

Achromatopsia (no color)

#444444

Design tokens & code

CSS

--color: #313e83;
/* rgb */ color: rgb(49, 62, 131);
/* oklch */ color: oklch(39.2% 0.116 272.0);

Tailwind

colors: {
  custom: {
    50: '#7273a7',
    500: '#313e83',
    950: '#000000',
  },
}

SCSS

$custom: #313e83;
$custom-light: #7273a7;
$custom-dark: #000000;

JSON

{
  "hex": "#313e83",
  "rgb": {
    "r": 49,
    "g": 62,
    "b": 131
  },
  "hsl": {
    "h": 230.488,
    "s": 45.556,
    "l": 35.294
  },
  "oklch": {
    "l": 0.39232,
    "c": 0.11628,
    "h": 272
  },
  "luminance": 0.05737
}

Semantic roles & 50–950 ramp

primary

#313E83

secondary

#AEA262

accent

#C153D5

background

#F7F6FA

surface

#EDECF4

border

#C8C7CE

text

#08080F

muted

#7B7B7F

Preview Lab

Preview with #313E83

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

Preview Lab → · Contrast checker → · Palette generator →