#31218D#31218D

#31218D is a dark, vivid blue. Relative luminance 0.037; OKLCH L 34.9% C 0.167 H 280.1°. Best body text is #FFFFFF at 12.12:1 contrast (WCAG AA passes).

Color values

HEX	#31218D
RGB	rgb(49, 33, 141)
HSL	hsl(249, 62%, 34%)
HSV	hsv(249, 77%, 55%)
CMYK	cmyk(65.2%, 76.6%, 0%, 44.7%)
CIE-LAB	lab(22.53, 39.63, -56.94)
CIE-LCH	lch(22.53, 69.37, 304.84°)
OKLab	oklab(34.95% 0.0292 -0.1643)
OKLCH	oklch(34.95% 0.167 280.1)
XYZ	xyz(6.6167, 3.6633, 25.5525)
Luminance	0.0366 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#31218D #7D8D21

analogous

#21478D #31218D #67218D

triadic

#31218D #8D3121 #218D31

tetradic

#31218D #8D2147 #7D8D21 #218D67

square

#31218D #8D2147 #7D8D21 #218D67

split-complementary

#31218D #8D6721 #478D21

monochromatic

#0F0A2A #20155B #31218D #422DBF #6652D6

Accessibility & contrast

On white

12.12

#31218D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.73

#31218D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #31218D

12.12:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##31218D	#FFFFFF	#000000	##FFFFFF
##31218D	1.00	12.12	1.73	12.12
#FFFFFF	12.12	1.00	21.00	1.00
#000000	1.73	21.00	1.00	21.00
##FFFFFF	12.12	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003A90

Deuteranopia (green-blind)

#00328B

Tritanopia (blue-blind)

#004055

Achromatopsia (no color)

#363636

Design tokens & code

CSS

--color: #31218d;
/* rgb */ color: rgb(49, 33, 141);
/* oklch */ color: oklch(34.9% 0.167 280.1);

Tailwind

colors: {
  custom: {
    50: '#765faf',
    500: '#31218d',
    950: '#000000',
  },
}

SCSS

$custom: #31218d;
$custom-light: #765faf;
$custom-dark: #000000;

JSON

{
  "hex": "#31218d",
  "rgb": {
    "r": 49,
    "g": 33,
    "b": 141
  },
  "hsl": {
    "h": 248.889,
    "s": 62.069,
    "l": 34.118
  },
  "oklch": {
    "l": 0.3495,
    "c": 0.1669,
    "h": 280.1
  },
  "luminance": 0.03664
}

Semantic roles & 50–950 ramp

primary

#31218D

secondary

#AABA50

accent

#E543CD

background

#F7F5FA

surface

#EEE9F5

border

#C9C5CF

text

#0A0511

muted

#7C7980

Preview Lab

Preview with #31218D

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

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