#311E96#311E96

#311E96 is a dark, vivid blue. Relative luminance 0.038; OKLCH L 35.5% C 0.181 H 279.1°. Best body text is #FFFFFF at 11.95:1 contrast (WCAG AA passes).

Color values

HEX	#311E96
RGB	rgb(49, 30, 150)
HSL	hsl(250, 67%, 35%)
HSV	hsv(250, 80%, 59%)
CMYK	cmyk(67.3%, 80%, 0%, 41.2%)
CIE-LAB	lab(22.94, 44.05, -61.83)
CIE-LCH	lch(22.94, 75.92, 305.47°)
OKLab	oklab(35.53% 0.0286 -0.1786)
OKLCH	oklch(35.53% 0.181 279.1)
XYZ	xyz(7.2342, 3.7829, 29.1972)
Luminance	0.0378 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#311E96 #83961E

analogous

#1E4796 #311E96 #6D1E96

triadic

#311E96 #96311E #1E9631

tetradic

#311E96 #961E47 #83961E #1E966D

square

#311E96 #961E47 #83961E #1E966D

split-complementary

#311E96 #966D1E #47961E

monochromatic

#100A30 #201463 #311E96 #4228C9 #6852DC

Accessibility & contrast

On white

11.95

#311E96 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.76

#311E96 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #311E96

11.95:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##311E96	#FFFFFF	#000000	##FFFFFF
##311E96	1.00	11.95	1.76	11.95
#FFFFFF	11.95	1.00	21.00	1.00
#000000	1.76	21.00	1.00	21.00
##FFFFFF	11.95	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003B99

Deuteranopia (green-blind)

#003294

Tritanopia (blue-blind)

#00425A

Achromatopsia (no color)

#373737

Design tokens & code

CSS

--color: #311e96;
/* rgb */ color: rgb(49, 30, 150);
/* oklch */ color: oklch(35.5% 0.181 279.1);

Tailwind

colors: {
  custom: {
    50: '#785eb6',
    500: '#311e96',
    950: '#000000',
  },
}

SCSS

$custom: #311e96;
$custom-light: #785eb6;
$custom-dark: #000000;

JSON

{
  "hex": "#311e96",
  "rgb": {
    "r": 49,
    "g": 30,
    "b": 150
  },
  "hsl": {
    "h": 249.5,
    "s": 66.667,
    "l": 35.294
  },
  "oklch": {
    "l": 0.35529,
    "c": 0.18083,
    "h": 279.1
  },
  "luminance": 0.03784
}

Semantic roles & 50–950 ramp

primary

#311E96

secondary

#AEBF50

accent

#EA3ECE

background

#F7F5FB

surface

#EEE9F6

border

#C9C5D0

text

#0A0411

muted

#7C7980

Preview Lab

Preview with #311E96

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

Preview Lab → · Contrast checker → · Palette generator →