#313A72#313A72

#313A72 is a dark, moderate blue. Relative luminance 0.049; OKLCH L 37.1% C 0.096 H 273.9°. Best body text is #FFFFFF at 10.61:1 contrast (WCAG AA passes).

Color values

HEX	#313A72
RGB	rgb(49, 58, 114)
HSL	hsl(232, 40%, 32%)
HSV	hsv(232, 57%, 45%)
CMYK	cmyk(57%, 49.1%, 0%, 55.3%)
CIE-LAB	lab(26.43, 14.14, -33.59)
CIE-LCH	lch(26.43, 36.45, 292.83°)
OKLab	oklab(37.11% 0.0066 -0.0957)
OKLCH	oklch(37.11% 0.096 273.9)
XYZ	xyz(5.8160, 4.8936, 16.5544)
Luminance	0.0489 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#313A72 #726931

analogous

#315B72 #313A72 #493172

triadic

#313A72 #72313A #3A7231

tetradic

#313A72 #72315B #726931 #317249

square

#313A72 #72315B #726931 #317249

split-complementary

#313A72 #724931 #5B7231

monochromatic

#0C0E1C #1F2447 #313A72 #43509D #626EBB

Accessibility & contrast

On white

10.61

#313A72 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.98

#313A72 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #313A72

10.61:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##313A72	#FFFFFF	#000000	##FFFFFF
##313A72	1.00	10.61	1.98	10.61
#FFFFFF	10.61	1.00	21.00	1.00
#000000	1.98	21.00	1.00	21.00
##FFFFFF	10.61	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#204174

Deuteranopia (green-blind)

#183C71

Tritanopia (blue-blind)

#104650

Achromatopsia (no color)

#3F3F3F

Design tokens & code

CSS

--color: #313a72;
/* rgb */ color: rgb(49, 58, 114);
/* oklch */ color: oklch(37.1% 0.096 273.9);

Tailwind

colors: {
  custom: {
    50: '#6f6f9b',
    500: '#313a72',
    950: '#000000',
  },
}

SCSS

$custom: #313a72;
$custom-light: #6f6f9b;
$custom-dark: #000000;

JSON

{
  "hex": "#313a72",
  "rgb": {
    "r": 49,
    "g": 58,
    "b": 114
  },
  "hsl": {
    "h": 231.692,
    "s": 39.877,
    "l": 31.961
  },
  "oklch": {
    "l": 0.37111,
    "c": 0.09593,
    "h": 273.9
  },
  "luminance": 0.04894
}

Semantic roles & 50–950 ramp

primary

#313A72

secondary

#A3995C

accent

#BF58D0

background

#F6F6F9

surface

#ECECF2

border

#C7C7CC

text

#08070E

muted

#7B7A7E

Preview Lab

Preview with #313A72

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

Preview Lab → · Contrast checker → · Palette generator →