#311F95#311F95

#311F95 is a dark, vivid blue. Relative luminance 0.038; OKLCH L 35.5% C 0.179 H 279.1°. Best body text is #FFFFFF at 11.93:1 contrast (WCAG AA passes).

Color values

HEX	#311F95
RGB	rgb(49, 31, 149)
HSL	hsl(249, 66%, 35%)
HSV	hsv(249, 79%, 58%)
CMYK	cmyk(67.1%, 79.2%, 0%, 41.6%)
CIE-LAB	lab(23.01, 43.23, -61.11)
CIE-LCH	lch(23.01, 74.85, 305.28°)
OKLab	oklab(35.54% 0.0283 -0.1765)
OKLCH	oklch(35.54% 0.179 279.1)
XYZ	xyz(7.1797, 3.8023, 28.7835)
Luminance	0.0380 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#311F95 #83951F

analogous

#1F4895 #311F95 #6C1F95

triadic

#311F95 #95311F #1F9531

tetradic

#311F95 #951F48 #83951F #1F956C

square

#311F95 #951F48 #83951F #1F956C

split-complementary

#311F95 #956C1F #48951F

monochromatic

#100A30 #201462 #311F95 #422AC8 #6853DB

Accessibility & contrast

On white

11.93

#311F95 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.76

#311F95 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #311F95

11.93:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##311F95	#FFFFFF	#000000	##FFFFFF
##311F95	1.00	11.93	1.76	11.93
#FFFFFF	11.93	1.00	21.00	1.00
#000000	1.76	21.00	1.00	21.00
##FFFFFF	11.93	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003B98

Deuteranopia (green-blind)

#003293

Tritanopia (blue-blind)

#004259

Achromatopsia (no color)

#373737

Design tokens & code

CSS

--color: #311f95;
/* rgb */ color: rgb(49, 31, 149);
/* oklch */ color: oklch(35.5% 0.179 279.1);

Tailwind

colors: {
  custom: {
    50: '#785eb5',
    500: '#311f95',
    950: '#000000',
  },
}

SCSS

$custom: #311f95;
$custom-light: #785eb5;
$custom-dark: #000000;

JSON

{
  "hex": "#311f95",
  "rgb": {
    "r": 49,
    "g": 31,
    "b": 149
  },
  "hsl": {
    "h": 249.153,
    "s": 65.556,
    "l": 35.294
  },
  "oklch": {
    "l": 0.35543,
    "c": 0.17872,
    "h": 279.1
  },
  "luminance": 0.03803
}

Semantic roles & 50–950 ramp

primary

#311F95

secondary

#AEBF51

accent

#E93FCF

background

#F7F5FB

surface

#EEE9F6

border

#C9C5D0

text

#0A0411

muted

#7C7980

Preview Lab

Preview with #311F95

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

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