#313A76#313A76

#313A76 is a dark, moderate blue. Relative luminance 0.050; OKLCH L 37.4% C 0.102 H 274.0°. Best body text is #FFFFFF at 10.51:1 contrast (WCAG AA passes).

Color values

HEX	#313A76
RGB	rgb(49, 58, 118)
HSL	hsl(232, 41%, 33%)
HSV	hsv(232, 58%, 46%)
CMYK	cmyk(58.5%, 50.8%, 0%, 53.7%)
CIE-LAB	lab(26.70, 15.58, -35.70)
CIE-LCH	lch(26.70, 38.95, 293.58°)
OKLab	oklab(37.4% 0.0071 -0.1019)
OKLCH	oklch(37.4% 0.102 274)
XYZ	xyz(6.0486, 4.9867, 17.7798)
Luminance	0.0499 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#313A76 #766D31

analogous

#315C76 #313A76 #4A3176

triadic

#313A76 #76313A #3A7631

tetradic

#313A76 #76315C #766D31 #31764A

square

#313A76 #76315C #766D31 #31764A

split-complementary

#313A76 #764A31 #5C7631

monochromatic

#0D0F20 #1F254B #313A76 #434FA1 #636FBE

Accessibility & contrast

On white

10.51

#313A76 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.00

#313A76 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #313A76

10.51:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##313A76	#FFFFFF	#000000	##FFFFFF
##313A76	1.00	10.51	2.00	10.51
#FFFFFF	10.51	1.00	21.00	1.00
#000000	2.00	21.00	1.00	21.00
##FFFFFF	10.51	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#1D4278

Deuteranopia (green-blind)

#133C75

Tritanopia (blue-blind)

#0A4752

Achromatopsia (no color)

#3F3F3F

Design tokens & code

CSS

--color: #313a76;
/* rgb */ color: rgb(49, 58, 118);
/* oklch */ color: oklch(37.4% 0.102 274.0);

Tailwind

colors: {
  custom: {
    50: '#6f6f9e',
    500: '#313a76',
    950: '#000000',
  },
}

SCSS

$custom: #313a76;
$custom-light: #6f6f9e;
$custom-dark: #000000;

JSON

{
  "hex": "#313a76",
  "rgb": {
    "r": 49,
    "g": 58,
    "b": 118
  },
  "hsl": {
    "h": 232.174,
    "s": 41.317,
    "l": 32.745
  },
  "oklch": {
    "l": 0.374,
    "c": 0.10215,
    "h": 274
  },
  "luminance": 0.04987
}

Semantic roles & 50–950 ramp

primary

#313A76

secondary

#A69C5D

accent

#C157D1

background

#F7F6F9

surface

#EDECF2

border

#C8C7CC

text

#08070E

muted

#7B7A7E

Preview Lab

Preview with #313A76

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

Preview Lab → · Contrast checker → · Palette generator →