#312197#312197

#312197 is a dark, vivid blue. Relative luminance 0.040; OKLCH L 36.0% C 0.179 H 278.5°. Best body text is #FFFFFF at 11.70:1 contrast (WCAG AA passes).

Color values

HEX	#312197
RGB	rgb(49, 33, 151)
HSL	hsl(248, 64%, 36%)
HSV	hsv(248, 78%, 59%)
CMYK	cmyk(67.5%, 78.1%, 0%, 40.8%)
CIE-LAB	lab(23.59, 42.82, -61.38)
CIE-LCH	lch(23.59, 74.84, 304.90°)
OKLab	oklab(36.01% 0.0266 -0.1773)
OKLCH	oklch(36.01% 0.179 278.5)
XYZ	xyz(7.3946, 3.9744, 29.6496)
Luminance	0.0398 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#312197 #879721

analogous

#214C97 #312197 #6C2197

triadic

#312197 #973121 #219731

tetradic

#312197 #97214C #879721 #21976C

square

#312197 #97214C #879721 #21976C

split-complementary

#312197 #976C21 #4C9721

monochromatic

#100B33 #211665 #312197 #412CC9 #6A58DA

Accessibility & contrast

On white

11.70

#312197 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.80

#312197 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #312197

11.70:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##312197	#FFFFFF	#000000	##FFFFFF
##312197	1.00	11.70	1.80	11.70
#FFFFFF	11.70	1.00	21.00	1.00
#000000	1.80	21.00	1.00	21.00
##FFFFFF	11.70	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003D9A

Deuteranopia (green-blind)

#003395

Tritanopia (blue-blind)

#00445B

Achromatopsia (no color)

#383838

Design tokens & code

CSS

--color: #312197;
/* rgb */ color: rgb(49, 33, 151);
/* oklch */ color: oklch(36.0% 0.179 278.5);

Tailwind

colors: {
  custom: {
    50: '#785fb7',
    500: '#312197',
    950: '#000000',
  },
}

SCSS

$custom: #312197;
$custom-light: #785fb7;
$custom-dark: #000000;

JSON

{
  "hex": "#312197",
  "rgb": {
    "r": 49,
    "g": 33,
    "b": 151
  },
  "hsl": {
    "h": 248.136,
    "s": 64.13,
    "l": 36.078
  },
  "oklch": {
    "l": 0.36013,
    "c": 0.17927,
    "h": 278.5
  },
  "luminance": 0.03975
}

Semantic roles & 50–950 ramp

primary

#312197

secondary

#B0BE55

accent

#E741D1

background

#F7F5FB

surface

#EEE9F6

border

#C9C5D0

text

#0A0511

muted

#7C7980

Preview Lab

Preview with #312197

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

Preview Lab → · Contrast checker → · Palette generator →