#313D79#313D79

#313D79 is a dark, moderate blue. Relative luminance 0.054; OKLCH L 38.3% C 0.102 H 272.2°. Best body text is #FFFFFF at 10.12:1 contrast (WCAG AA passes).

Color values

HEX	#313D79
RGB	rgb(49, 61, 121)
HSL	hsl(230, 42%, 33%)
HSV	hsv(230, 60%, 47%)
CMYK	cmyk(59.5%, 49.6%, 0%, 52.5%)
CIE-LAB	lab(27.77, 14.62, -35.88)
CIE-LCH	lch(27.77, 38.75, 292.16°)
OKLab	oklab(38.28% 0.004 -0.1024)
OKLCH	oklch(38.28% 0.102 272.2)
XYZ	xyz(6.3854, 5.3705, 18.7856)
Luminance	0.0537 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#313D79 #796D31

analogous

#316179 #313D79 #493179

triadic

#313D79 #79313D #3D7931

tetradic

#313D79 #793161 #796D31 #317949

square

#313D79 #793161 #796D31 #317949

split-complementary

#313D79 #794931 #617931

monochromatic

#0E1122 #1F274D #313D79 #4353A5 #6473C0

Accessibility & contrast

On white

10.12

#313D79 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.07

#313D79 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #313D79

10.12:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##313D79	#FFFFFF	#000000	##FFFFFF
##313D79	1.00	10.12	2.07	10.12
#FFFFFF	10.12	1.00	21.00	1.00
#000000	2.07	21.00	1.00	21.00
##FFFFFF	10.12	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#20457B

Deuteranopia (green-blind)

#163F78

Tritanopia (blue-blind)

#034A55

Achromatopsia (no color)

#424242

Design tokens & code

CSS

--color: #313d79;
/* rgb */ color: rgb(49, 61, 121);
/* oklch */ color: oklch(38.3% 0.102 272.2);

Tailwind

colors: {
  custom: {
    50: '#7072a0',
    500: '#313d79',
    950: '#000000',
  },
}

SCSS

$custom: #313d79;
$custom-light: #7072a0;
$custom-dark: #000000;

JSON

{
  "hex": "#313d79",
  "rgb": {
    "r": 49,
    "g": 61,
    "b": 121
  },
  "hsl": {
    "h": 230,
    "s": 42.353,
    "l": 33.333
  },
  "oklch": {
    "l": 0.38275,
    "c": 0.10248,
    "h": 272.2
  },
  "luminance": 0.05371
}

Semantic roles & 50–950 ramp

primary

#313D79

secondary

#A89B5E

accent

#BD56D2

background

#F7F6F9

surface

#EDECF2

border

#C8C7CC

text

#08070F

muted

#7B7A7E

Preview Lab

Preview with #313D79

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

Preview Lab → · Contrast checker → · Palette generator →