#313388#313388

#313388 is a dark, vivid blue. Relative luminance 0.048; OKLCH L 37.4% C 0.139 H 276.3°. Best body text is #FFFFFF at 10.72:1 contrast (WCAG AA passes).

Color values

HEX	#313388
RGB	rgb(49, 51, 136)
HSL	hsl(239, 47%, 36%)
HSV	hsv(239, 64%, 53%)
CMYK	cmyk(64%, 62.5%, 0%, 46.7%)
CIE-LAB	lab(26.15, 26.83, -47.89)
CIE-LCH	lch(26.15, 54.89, 299.26°)
OKLab	oklab(37.42% 0.0153 -0.1378)
OKLCH	oklch(37.42% 0.139 276.3)
XYZ	xyz(6.8929, 4.7976, 23.8506)
Luminance	0.0480 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#313388 #888631

analogous

#315F88 #313388 #5B3188

triadic

#313388 #883133 #338831

tetradic

#313388 #88315F #888631 #31885B

square

#313388 #88315F #888631 #31885B

split-complementary

#313388 #885B31 #5F8831

monochromatic

#11112E #21225B #313388 #4144B5 #6A6CC9

Accessibility & contrast

On white

10.72

#313388 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.96

#313388 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #313388

10.72:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##313388	#FFFFFF	#000000	##FFFFFF
##313388	1.00	10.72	1.96	10.72
#FFFFFF	10.72	1.00	21.00	1.00
#000000	1.96	21.00	1.00	21.00
##FFFFFF	10.72	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00428B

Deuteranopia (green-blind)

#003A86

Tritanopia (blue-blind)

#004858

Achromatopsia (no color)

#3E3E3E

Design tokens & code

CSS

--color: #313388;
/* rgb */ color: rgb(49, 51, 136);
/* oklch */ color: oklch(37.4% 0.139 276.3);

Tailwind

colors: {
  custom: {
    50: '#736aab',
    500: '#313388',
    950: '#000000',
  },
}

SCSS

$custom: #313388;
$custom-light: #736aab;
$custom-dark: #000000;

JSON

{
  "hex": "#313388",
  "rgb": {
    "r": 49,
    "g": 51,
    "b": 136
  },
  "hsl": {
    "h": 238.621,
    "s": 47.027,
    "l": 36.275
  },
  "oklch": {
    "l": 0.37423,
    "c": 0.13867,
    "h": 276.3
  },
  "luminance": 0.04798
}

Semantic roles & 50–950 ramp

primary

#313388

secondary

#B1AF64

accent

#D451D7

background

#F7F6FA

surface

#EDEBF4

border

#C8C6CE

text

#090610

muted

#7B7A7F

Preview Lab

Preview with #313388

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

Preview Lab → · Contrast checker → · Palette generator →