#31218B#31218B

#31218B is a dark, vivid blue. Relative luminance 0.036; OKLCH L 34.7% C 0.164 H 280.4°. Best body text is #FFFFFF at 12.20:1 contrast (WCAG AA passes).

Color values

HEX	#31218B
RGB	rgb(49, 33, 139)
HSL	hsl(249, 62%, 34%)
HSV	hsv(249, 76%, 55%)
CMYK	cmyk(64.7%, 76.3%, 0%, 45.5%)
CIE-LAB	lab(22.32, 38.98, -56.04)
CIE-LCH	lch(22.32, 68.26, 304.83°)
OKLab	oklab(34.74% 0.0297 -0.1617)
OKLCH	oklch(34.74% 0.164 280.4)
XYZ	xyz(6.4692, 3.6043, 24.7759)
Luminance	0.0360 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#31218B #7B8B21

analogous

#21468B #31218B #66218B

triadic

#31218B #8B3121 #218B31

tetradic

#31218B #8B2146 #7B8B21 #218B66

square

#31218B #8B2146 #7B8B21 #218B66

split-complementary

#31218B #8B6621 #468B21

monochromatic

#0E0A28 #20155A #31218B #422DBC #6551D6

Accessibility & contrast

On white

12.20

#31218B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.72

#31218B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #31218B

12.20:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##31218B	#FFFFFF	#000000	##FFFFFF
##31218B	1.00	12.20	1.72	12.20
#FFFFFF	12.20	1.00	21.00	1.00
#000000	1.72	21.00	1.00	21.00
##FFFFFF	12.20	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00398E

Deuteranopia (green-blind)

#003189

Tritanopia (blue-blind)

#003F54

Achromatopsia (no color)

#353535

Design tokens & code

CSS

--color: #31218b;
/* rgb */ color: rgb(49, 33, 139);
/* oklch */ color: oklch(34.7% 0.164 280.4);

Tailwind

colors: {
  custom: {
    50: '#765fae',
    500: '#31218b',
    950: '#000000',
  },
}

SCSS

$custom: #31218b;
$custom-light: #765fae;
$custom-dark: #000000;

JSON

{
  "hex": "#31218b",
  "rgb": {
    "r": 49,
    "g": 33,
    "b": 139
  },
  "hsl": {
    "h": 249.057,
    "s": 61.628,
    "l": 33.725
  },
  "oklch": {
    "l": 0.34741,
    "c": 0.16439,
    "h": 280.4
  },
  "luminance": 0.03605
}

Semantic roles & 50–950 ramp

primary

#31218B

secondary

#A9B94F

accent

#E543CC

background

#F7F5FA

surface

#EEE9F4

border

#C9C5CE

text

#090510

muted

#7B797F

Preview Lab

Preview with #31218B

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

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