#313A89#313A89

#313A89 is a dark, vivid blue. Relative luminance 0.055; OKLCH L 38.9% C 0.131 H 273.8°. Best body text is #FFFFFF at 10.01:1 contrast (WCAG AA passes).

Color values

HEX	#313A89
RGB	rgb(49, 58, 137)
HSL	hsl(234, 47%, 36%)
HSV	hsv(234, 64%, 54%)
CMYK	cmyk(64.2%, 57.7%, 0%, 46.3%)
CIE-LAB	lab(28.07, 22.50, -45.39)
CIE-LCH	lch(28.07, 50.66, 296.37°)
OKLab	oklab(38.87% 0.0086 -0.1304)
OKLCH	oklch(38.87% 0.131 273.8)
XYZ	xyz(7.2935, 5.4846, 24.3363)
Luminance	0.0549 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#313A89 #898031

analogous

#316689 #313A89 #543189

triadic

#313A89 #89313A #3A8931

tetradic

#313A89 #893166 #898031 #318954

square

#313A89 #893166 #898031 #318954

split-complementary

#313A89 #895431 #668931

monochromatic

#11142F #21275C #313A89 #414DB6 #6B74CA

Accessibility & contrast

On white

10.01

#313A89 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.10

#313A89 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #313A89

10.01:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##313A89	#FFFFFF	#000000	##FFFFFF
##313A89	1.00	10.01	2.10	10.01
#FFFFFF	10.01	1.00	21.00	1.00
#000000	2.10	21.00	1.00	21.00
##FFFFFF	10.01	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00468C

Deuteranopia (green-blind)

#003E87

Tritanopia (blue-blind)

#004D5B

Achromatopsia (no color)

#424242

Design tokens & code

CSS

--color: #313a89;
/* rgb */ color: rgb(49, 58, 137);
/* oklch */ color: oklch(38.9% 0.131 273.8);

Tailwind

colors: {
  custom: {
    50: '#7370ac',
    500: '#313a89',
    950: '#000000',
  },
}

SCSS

$custom: #313a89;
$custom-light: #7370ac;
$custom-dark: #000000;

JSON

{
  "hex": "#313a89",
  "rgb": {
    "r": 49,
    "g": 58,
    "b": 137
  },
  "hsl": {
    "h": 233.864,
    "s": 47.312,
    "l": 36.471
  },
  "oklch": {
    "l": 0.38874,
    "c": 0.13067,
    "h": 273.8
  },
  "luminance": 0.05485
}

Semantic roles & 50–950 ramp

primary

#313A89

secondary

#B1A964

accent

#C951D7

background

#F7F6FA

surface

#EDECF4

border

#C8C7CE

text

#090710

muted

#7B7A7F

Preview Lab

Preview with #313A89

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

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