#311F92#311F92

#311F92 is a dark, vivid blue. Relative luminance 0.037; OKLCH L 35.2% C 0.175 H 279.6°. Best body text is #FFFFFF at 12.06:1 contrast (WCAG AA passes).

Color values

HEX	#311F92
RGB	rgb(49, 31, 146)
HSL	hsl(249, 65%, 35%)
HSV	hsv(249, 79%, 57%)
CMYK	cmyk(66.4%, 78.8%, 0%, 42.7%)
CIE-LAB	lab(22.68, 42.29, -59.79)
CIE-LCH	lch(22.68, 73.23, 305.27°)
OKLab	oklab(35.22% 0.0291 -0.1726)
OKLCH	oklch(35.22% 0.175 279.6)
XYZ	xyz(6.9433, 3.7077, 27.5383)
Luminance	0.0371 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#311F92 #80921F

analogous

#1F4792 #311F92 #6A1F92

triadic

#311F92 #92311F #1F9231

tetradic

#311F92 #921F47 #80921F #1F926A

square

#311F92 #921F47 #80921F #1F926A

split-complementary

#311F92 #926A1F #47921F

monochromatic

#0F0A2D #201460 #311F92 #422AC4 #6751DA

Accessibility & contrast

On white

12.06

#311F92 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.74

#311F92 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #311F92

12.06:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##311F92	#FFFFFF	#000000	##FFFFFF
##311F92	1.00	12.06	1.74	12.06
#FFFFFF	12.06	1.00	21.00	1.00
#000000	1.74	21.00	1.00	21.00
##FFFFFF	12.06	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003A95

Deuteranopia (green-blind)

#003290

Tritanopia (blue-blind)

#004158

Achromatopsia (no color)

#363636

Design tokens & code

CSS

--color: #311f92;
/* rgb */ color: rgb(49, 31, 146);
/* oklch */ color: oklch(35.2% 0.175 279.6);

Tailwind

colors: {
  custom: {
    50: '#775eb3',
    500: '#311f92',
    950: '#000000',
  },
}

SCSS

$custom: #311f92;
$custom-light: #775eb3;
$custom-dark: #000000;

JSON

{
  "hex": "#311f92",
  "rgb": {
    "r": 49,
    "g": 31,
    "b": 146
  },
  "hsl": {
    "h": 249.391,
    "s": 64.972,
    "l": 34.706
  },
  "oklch": {
    "l": 0.35218,
    "c": 0.17506,
    "h": 279.6
  },
  "luminance": 0.03708
}

Semantic roles & 50–950 ramp

primary

#311F92

secondary

#ACBD50

accent

#E840CE

background

#F7F5FB

surface

#EEE9F6

border

#C9C5D0

text

#0A0411

muted

#7C7980

Preview Lab

Preview with #311F92

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

Preview Lab → · Contrast checker → · Palette generator →