#313688#313688

#313688 is a dark, vivid blue. Relative luminance 0.051; OKLCH L 38.0% C 0.135 H 275.3°. Best body text is #FFFFFF at 10.43:1 contrast (WCAG AA passes).

Color values

HEX	#313688
RGB	rgb(49, 54, 136)
HSL	hsl(237, 47%, 36%)
HSV	hsv(237, 64%, 53%)
CMYK	cmyk(64%, 60.3%, 0%, 46.7%)
CIE-LAB	lab(26.93, 24.83, -46.62)
CIE-LCH	lch(26.93, 52.82, 298.04°)
OKLab	oklab(38% 0.0125 -0.1341)
OKLCH	oklch(38% 0.135 275.3)
XYZ	xyz(7.0283, 5.0683, 23.8957)
Luminance	0.0507 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#313688 #888331

analogous

#316288 #313688 #583188

triadic

#313688 #883136 #368831

tetradic

#313688 #883162 #888331 #318858

square

#313688 #883162 #888331 #318858

split-complementary

#313688 #885831 #628831

monochromatic

#11122E #21245B #313688 #4148B5 #6A70C9

Accessibility & contrast

On white

10.43

#313688 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.01

#313688 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #313688

10.43:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##313688	#FFFFFF	#000000	##FFFFFF
##313688	1.00	10.43	2.01	10.43
#FFFFFF	10.43	1.00	21.00	1.00
#000000	2.01	21.00	1.00	21.00
##FFFFFF	10.43	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00438B

Deuteranopia (green-blind)

#003C86

Tritanopia (blue-blind)

#004A59

Achromatopsia (no color)

#404040

Design tokens & code

CSS

--color: #313688;
/* rgb */ color: rgb(49, 54, 136);
/* oklch */ color: oklch(38.0% 0.135 275.3);

Tailwind

colors: {
  custom: {
    50: '#736dab',
    500: '#313688',
    950: '#000000',
  },
}

SCSS

$custom: #313688;
$custom-light: #736dab;
$custom-dark: #000000;

JSON

{
  "hex": "#313688",
  "rgb": {
    "r": 49,
    "g": 54,
    "b": 136
  },
  "hsl": {
    "h": 236.552,
    "s": 47.027,
    "l": 36.275
  },
  "oklch": {
    "l": 0.37998,
    "c": 0.13465,
    "h": 275.3
  },
  "luminance": 0.05069
}

Semantic roles & 50–950 ramp

primary

#313688

secondary

#B1AC64

accent

#CF51D7

background

#F7F6FA

surface

#EDEBF4

border

#C8C6CE

text

#090710

muted

#7B7A7F

Preview Lab

Preview with #313688

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

Preview Lab → · Contrast checker → · Palette generator →