#31218C#31218C

#31218C is a dark, vivid blue. Relative luminance 0.036; OKLCH L 34.8% C 0.166 H 280.2°. Best body text is #FFFFFF at 12.16:1 contrast (WCAG AA passes).

Color values

HEX	#31218C
RGB	rgb(49, 33, 140)
HSL	hsl(249, 62%, 34%)
HSV	hsv(249, 76%, 55%)
CMYK	cmyk(65%, 76.4%, 0%, 45.1%)
CIE-LAB	lab(22.42, 39.31, -56.49)
CIE-LCH	lch(22.42, 68.82, 304.83°)
OKLab	oklab(34.85% 0.0294 -0.163)
OKLCH	oklch(34.85% 0.166 280.2)
XYZ	xyz(6.5426, 3.6336, 25.1624)
Luminance	0.0363 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#31218C #7C8C21

analogous

#21478C #31218C #67218C

triadic

#31218C #8C3121 #218C31

tetradic

#31218C #8C2147 #7C8C21 #218C67

square

#31218C #8C2147 #7C8C21 #218C67

split-complementary

#31218C #8C6721 #478C21

monochromatic

#0E0A29 #20155A #31218C #422DBE #6551D6

Accessibility & contrast

On white

12.16

#31218C on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.73

#31218C on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #31218C

12.16:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##31218C	#FFFFFF	#000000	##FFFFFF
##31218C	1.00	12.16	1.73	12.16
#FFFFFF	12.16	1.00	21.00	1.00
#000000	1.73	21.00	1.00	21.00
##FFFFFF	12.16	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00398F

Deuteranopia (green-blind)

#00318A

Tritanopia (blue-blind)

#003F55

Achromatopsia (no color)

#363636

Design tokens & code

CSS

--color: #31218c;
/* rgb */ color: rgb(49, 33, 140);
/* oklch */ color: oklch(34.8% 0.166 280.2);

Tailwind

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

SCSS

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

JSON

{
  "hex": "#31218c",
  "rgb": {
    "r": 49,
    "g": 33,
    "b": 140
  },
  "hsl": {
    "h": 248.972,
    "s": 61.85,
    "l": 33.922
  },
  "oklch": {
    "l": 0.34845,
    "c": 0.16566,
    "h": 280.2
  },
  "luminance": 0.03634
}

Semantic roles & 50–950 ramp

primary

#31218C

secondary

#AAB94F

accent

#E543CD

background

#F7F5FA

surface

#EEE9F5

border

#C9C5CF

text

#0A0510

muted

#7C797F

Preview Lab

Preview with #31218C

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

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