#312188#312188

#312188 is a dark, vivid blue. Relative luminance 0.035; OKLCH L 34.4% C 0.161 H 280.9°. Best body text is #FFFFFF at 12.33:1 contrast (WCAG AA passes).

Color values

HEX	#312188
RGB	rgb(49, 33, 136)
HSL	hsl(249, 61%, 33%)
HSV	hsv(249, 76%, 53%)
CMYK	cmyk(64%, 75.7%, 0%, 46.7%)
CIE-LAB	lab(22.01, 38.02, -54.67)
CIE-LCH	lch(22.01, 66.59, 304.81°)
OKLab	oklab(34.43% 0.0304 -0.1577)
OKLCH	oklch(34.43% 0.161 280.9)
XYZ	xyz(6.2530, 3.5178, 23.6373)
Luminance	0.0352 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#312188 #788821

analogous

#214588 #312188 #642188

triadic

#312188 #883121 #218831

tetradic

#312188 #882145 #788821 #218864

square

#312188 #882145 #788821 #218864

split-complementary

#312188 #886421 #458821

monochromatic

#0E0925 #1F1557 #312188 #432DB9 #644FD4

Accessibility & contrast

On white

12.33

#312188 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.70

#312188 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #312188

12.33:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##312188	#FFFFFF	#000000	##FFFFFF
##312188	1.00	12.33	1.70	12.33
#FFFFFF	12.33	1.00	21.00	1.00
#000000	1.70	21.00	1.00	21.00
##FFFFFF	12.33	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00388B

Deuteranopia (green-blind)

#003186

Tritanopia (blue-blind)

#003E53

Achromatopsia (no color)

#353535

Design tokens & code

CSS

--color: #312188;
/* rgb */ color: rgb(49, 33, 136);
/* oklch */ color: oklch(34.4% 0.161 280.9);

Tailwind

colors: {
  custom: {
    50: '#755eac',
    500: '#312188',
    950: '#000000',
  },
}

SCSS

$custom: #312188;
$custom-light: #755eac;
$custom-dark: #000000;

JSON

{
  "hex": "#312188",
  "rgb": {
    "r": 49,
    "g": 33,
    "b": 136
  },
  "hsl": {
    "h": 249.32,
    "s": 60.947,
    "l": 33.137
  },
  "oklch": {
    "l": 0.3443,
    "c": 0.1606,
    "h": 280.9
  },
  "luminance": 0.03518
}

Semantic roles & 50–950 ramp

primary

#312188

secondary

#A7B84D

accent

#E444CB

background

#F7F5FA

surface

#EEE9F4

border

#C9C5CE

text

#090410

muted

#7B797F

Preview Lab

Preview with #312188

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

Preview Lab → · Contrast checker → · Palette generator →