#313A71#313A71

#313A71 is a dark, moderate blue. Relative luminance 0.049; OKLCH L 37.0% C 0.094 H 273.9°. Best body text is #FFFFFF at 10.64:1 contrast (WCAG AA passes).

Color values

HEX	#313A71
RGB	rgb(49, 58, 113)
HSL	hsl(232, 40%, 32%)
HSV	hsv(232, 57%, 44%)
CMYK	cmyk(56.6%, 48.7%, 0%, 55.7%)
CIE-LAB	lab(26.36, 13.79, -33.06)
CIE-LCH	lch(26.36, 35.82, 292.64°)
OKLab	oklab(37.04% 0.0064 -0.0941)
OKLCH	oklch(37.04% 0.094 273.9)
XYZ	xyz(5.7594, 4.8709, 16.2563)
Luminance	0.0487 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#313A71 #716831

analogous

#315A71 #313A71 #483171

triadic

#313A71 #71313A #3A7131

tetradic

#313A71 #71315A #716831 #317148

square

#313A71 #71315A #716831 #317148

split-complementary

#313A71 #714831 #5A7131

monochromatic

#0C0E1C #1E2446 #313A71 #44509C #626EBB

Accessibility & contrast

On white

10.64

#313A71 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.97

#313A71 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #313A71

10.64:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##313A71	#FFFFFF	#000000	##FFFFFF
##313A71	1.00	10.64	1.97	10.64
#FFFFFF	10.64	1.00	21.00	1.00
#000000	1.97	21.00	1.00	21.00
##FFFFFF	10.64	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#214173

Deuteranopia (green-blind)

#1A3C70

Tritanopia (blue-blind)

#114650

Achromatopsia (no color)

#3E3E3E

Design tokens & code

CSS

--color: #313a71;
/* rgb */ color: rgb(49, 58, 113);
/* oklch */ color: oklch(37.0% 0.094 273.9);

Tailwind

colors: {
  custom: {
    50: '#6e6f9a',
    500: '#313a71',
    950: '#000000',
  },
}

SCSS

$custom: #313a71;
$custom-light: #6e6f9a;
$custom-dark: #000000;

JSON

{
  "hex": "#313a71",
  "rgb": {
    "r": 49,
    "g": 58,
    "b": 113
  },
  "hsl": {
    "h": 231.563,
    "s": 39.506,
    "l": 31.765
  },
  "oklch": {
    "l": 0.3704,
    "c": 0.09436,
    "h": 273.9
  },
  "luminance": 0.04871
}

Semantic roles & 50–950 ramp

primary

#313A71

secondary

#A2985C

accent

#BF58CF

background

#F6F6F9

surface

#ECECF2

border

#C7C7CC

text

#08070E

muted

#7B7A7E

Preview Lab

Preview with #313A71

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

Preview Lab → · Contrast checker → · Palette generator →