#313181#313181

#313181 is a dark, vivid blue. Relative luminance 0.044; OKLCH L 36.4% C 0.131 H 277.7°. Best body text is #FFFFFF at 11.13:1 contrast (WCAG AA passes).

Color values

HEX	#313181
RGB	rgb(49, 49, 129)
HSL	hsl(240, 45%, 35%)
HSV	hsv(240, 62%, 51%)
CMYK	cmyk(62%, 62%, 0%, 49.4%)
CIE-LAB	lab(25.06, 25.66, -45.29)
CIE-LCH	lch(25.06, 52.05, 299.53°)
OKLab	oklab(36.44% 0.0175 -0.1302)
OKLCH	oklch(36.44% 0.131 277.7)
XYZ	xyz(6.3261, 4.4341, 21.2871)
Luminance	0.0444 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#313181 #818131

analogous

#315981 #313181 #593181

triadic

#313181 #813131 #318131

tetradic

#313181 #813159 #818131 #318159

square

#313181 #813159 #818131 #318159

split-complementary

#313181 #815931 #598131

monochromatic

#0F0F28 #202055 #313181 #4242AD #6767C5

Accessibility & contrast

On white

11.13

#313181 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.89

#313181 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #313181

11.13:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##313181	#FFFFFF	#000000	##FFFFFF
##313181	1.00	11.13	1.89	11.13
#FFFFFF	11.13	1.00	21.00	1.00
#000000	1.89	21.00	1.00	21.00
##FFFFFF	11.13	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003F84

Deuteranopia (green-blind)

#00387F

Tritanopia (blue-blind)

#004454

Achromatopsia (no color)

#3B3B3B

Design tokens & code

CSS

--color: #313181;
/* rgb */ color: rgb(49, 49, 129);
/* oklch */ color: oklch(36.4% 0.131 277.7);

Tailwind

colors: {
  custom: {
    50: '#7269a6',
    500: '#313181',
    950: '#000000',
  },
}

SCSS

$custom: #313181;
$custom-light: #7269a6;
$custom-dark: #000000;

JSON

{
  "hex": "#313181",
  "rgb": {
    "r": 49,
    "g": 49,
    "b": 129
  },
  "hsl": {
    "h": 240,
    "s": 44.944,
    "l": 34.902
  },
  "oklch": {
    "l": 0.36436,
    "c": 0.13136,
    "h": 277.7
  },
  "luminance": 0.04435
}

Semantic roles & 50–950 ramp

primary

#313181

secondary

#ADAD61

accent

#D553D5

background

#F7F6FA

surface

#EDEBF4

border

#C8C6CE

text

#08060F

muted

#7B7A7F

Preview Lab

Preview with #313181

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

Preview Lab → · Contrast checker → · Palette generator →