#311F93#311F93

#311F93 is a dark, vivid blue. Relative luminance 0.037; OKLCH L 35.3% C 0.176 H 279.4°. Best body text is #FFFFFF at 12.01:1 contrast (WCAG AA passes).

Color values

HEX	#311F93
RGB	rgb(49, 31, 147)
HSL	hsl(249, 65%, 35%)
HSV	hsv(249, 79%, 58%)
CMYK	cmyk(66.7%, 78.9%, 0%, 42.4%)
CIE-LAB	lab(22.79, 42.60, -60.23)
CIE-LCH	lch(22.79, 73.77, 305.27°)
OKLab	oklab(35.33% 0.0289 -0.1739)
OKLCH	oklch(35.33% 0.176 279.4)
XYZ	xyz(7.0214, 3.7390, 27.9498)
Luminance	0.0374 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#311F93 #81931F

analogous

#1F4793 #311F93 #6B1F93

triadic

#311F93 #93311F #1F9331

tetradic

#311F93 #931F47 #81931F #1F936B

square

#311F93 #931F47 #81931F #1F936B

split-complementary

#311F93 #936B1F #47931F

monochromatic

#0F0A2E #201460 #311F93 #422AC6 #6752DA

Accessibility & contrast

On white

12.01

#311F93 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.75

#311F93 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #311F93

12.01:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##311F93	#FFFFFF	#000000	##FFFFFF
##311F93	1.00	12.01	1.75	12.01
#FFFFFF	12.01	1.00	21.00	1.00
#000000	1.75	21.00	1.00	21.00
##FFFFFF	12.01	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003B96

Deuteranopia (green-blind)

#003291

Tritanopia (blue-blind)

#004158

Achromatopsia (no color)

#363636

Design tokens & code

CSS

--color: #311f93;
/* rgb */ color: rgb(49, 31, 147);
/* oklch */ color: oklch(35.3% 0.176 279.4);

Tailwind

colors: {
  custom: {
    50: '#775eb4',
    500: '#311f93',
    950: '#000000',
  },
}

SCSS

$custom: #311f93;
$custom-light: #775eb4;
$custom-dark: #000000;

JSON

{
  "hex": "#311f93",
  "rgb": {
    "r": 49,
    "g": 31,
    "b": 147
  },
  "hsl": {
    "h": 249.31,
    "s": 65.169,
    "l": 34.902
  },
  "oklch": {
    "l": 0.35326,
    "c": 0.17629,
    "h": 279.4
  },
  "luminance": 0.0374
}

Semantic roles & 50–950 ramp

primary

#311F93

secondary

#ADBE50

accent

#E840CE

background

#F7F5FB

surface

#EEE9F6

border

#C9C5D0

text

#0A0411

muted

#7C7980

Preview Lab

Preview with #311F93

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

Preview Lab → · Contrast checker → · Palette generator →