#313E84#313E84

#313E84 is a dark, moderate blue. Relative luminance 0.058; OKLCH L 39.3% C 0.118 H 272.0°. Best body text is #FFFFFF at 9.75:1 contrast (WCAG AA passes).

Color values

HEX	#313E84
RGB	rgb(49, 62, 132)
HSL	hsl(231, 46%, 35%)
HSV	hsv(231, 63%, 52%)
CMYK	cmyk(62.9%, 53%, 0%, 48.2%)
CIE-LAB	lab(28.81, 17.96, -41.09)
CIE-LCH	lch(28.81, 44.85, 293.61°)
OKLab	oklab(39.31% 0.0041 -0.1177)
OKLCH	oklch(39.31% 0.118 272)
XYZ	xyz(7.1527, 5.7636, 22.5609)
Luminance	0.0576 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#313E84 #847731

analogous

#316784 #313E84 #4D3184

triadic

#313E84 #84313E #3E8431

tetradic

#313E84 #843167 #847731 #31844D

square

#313E84 #843167 #847731 #31844D

split-complementary

#313E84 #844D31 #678431

monochromatic

#10142B #202957 #313E84 #4253B1 #6877C7

Accessibility & contrast

On white

9.75

#313E84 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.15

#313E84 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #313E84

9.75:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##313E84	#FFFFFF	#000000	##FFFFFF
##313E84	1.00	9.75	2.15	9.75
#FFFFFF	9.75	1.00	21.00	1.00
#000000	2.15	21.00	1.00	21.00
##FFFFFF	9.75	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#164886

Deuteranopia (green-blind)

#004083

Tritanopia (blue-blind)

#004E5B

Achromatopsia (no color)

#444444

Design tokens & code

CSS

--color: #313e84;
/* rgb */ color: rgb(49, 62, 132);
/* oklch */ color: oklch(39.3% 0.118 272.0);

Tailwind

colors: {
  custom: {
    50: '#7273a8',
    500: '#313e84',
    950: '#000000',
  },
}

SCSS

$custom: #313e84;
$custom-light: #7273a8;
$custom-dark: #000000;

JSON

{
  "hex": "#313e84",
  "rgb": {
    "r": 49,
    "g": 62,
    "b": 132
  },
  "hsl": {
    "h": 230.602,
    "s": 45.856,
    "l": 35.49
  },
  "oklch": {
    "l": 0.39308,
    "c": 0.11778,
    "h": 272
  },
  "luminance": 0.05764
}

Semantic roles & 50–950 ramp

primary

#313E84

secondary

#AEA362

accent

#C152D6

background

#F7F6FA

surface

#EDECF4

border

#C8C7CE

text

#080810

muted

#7B7B7F

Preview Lab

Preview with #313E84

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

Preview Lab → · Contrast checker → · Palette generator →