#313C7C#313C7C

#313C7C is a dark, moderate blue. Relative luminance 0.053; OKLCH L 38.3% C 0.108 H 272.9°. Best body text is #FFFFFF at 10.15:1 contrast (WCAG AA passes).

Color values

HEX	#313C7C
RGB	rgb(49, 60, 124)
HSL	hsl(231, 43%, 34%)
HSV	hsv(231, 60%, 49%)
CMYK	cmyk(60.5%, 51.6%, 0%, 51.4%)
CIE-LAB	lab(27.68, 16.39, -37.91)
CIE-LCH	lch(27.68, 41.30, 293.39°)
OKLab	oklab(38.28% 0.0055 -0.1084)
OKLCH	oklch(38.28% 0.109 272.9)
XYZ	xyz(6.5194, 5.3394, 19.7519)
Luminance	0.0534 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#313C7C #7C7131

analogous

#31627C #313C7C #4C317C

triadic

#313C7C #7C313C #3C7C31

tetradic

#313C7C #7C3162 #7C7131 #317C4C

square

#313C7C #7C3162 #7C7131 #317C4C

split-complementary

#313C7C #7C4C31 #627C31

monochromatic

#0E1224 #202750 #313C7C #4251A8 #6573C2

Accessibility & contrast

On white

10.15

#313C7C on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.07

#313C7C on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #313C7C

10.15:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##313C7C	#FFFFFF	#000000	##FFFFFF
##313C7C	1.00	10.15	2.07	10.15
#FFFFFF	10.15	1.00	21.00	1.00
#000000	2.07	21.00	1.00	21.00
##FFFFFF	10.15	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#1B457E

Deuteranopia (green-blind)

#0E3E7B

Tritanopia (blue-blind)

#004A56

Achromatopsia (no color)

#414141

Design tokens & code

CSS

--color: #313c7c;
/* rgb */ color: rgb(49, 60, 124);
/* oklch */ color: oklch(38.3% 0.108 272.9);

Tailwind

colors: {
  custom: {
    50: '#7071a2',
    500: '#313c7c',
    950: '#000000',
  },
}

SCSS

$custom: #313c7c;
$custom-light: #7071a2;
$custom-dark: #000000;

JSON

{
  "hex": "#313c7c",
  "rgb": {
    "r": 49,
    "g": 60,
    "b": 124
  },
  "hsl": {
    "h": 231.2,
    "s": 43.353,
    "l": 33.922
  },
  "oklch": {
    "l": 0.38277,
    "c": 0.1085,
    "h": 272.9
  },
  "luminance": 0.0534
}

Semantic roles & 50–950 ramp

primary

#313C7C

secondary

#AA9F5F

accent

#C155D3

background

#F7F6FA

surface

#EDECF3

border

#C8C7CD

text

#08070F

muted

#7B7A7F

Preview Lab

Preview with #313C7C

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

Preview Lab → · Contrast checker → · Palette generator →