#31229D#31229D

#31229D is a dark, vivid blue. Relative luminance 0.042; OKLCH L 36.8% C 0.186 H 277.6°. Best body text is #FFFFFF at 11.37:1 contrast (WCAG AA passes).

Color values

HEX	#31229D
RGB	rgb(49, 34, 157)
HSL	hsl(247, 64%, 37%)
HSV	hsv(247, 78%, 62%)
CMYK	cmyk(68.8%, 78.3%, 0%, 38.4%)
CIE-LAB	lab(24.42, 44.19, -63.68)
CIE-LCH	lch(24.42, 77.51, 304.76°)
OKLab	oklab(36.79% 0.0245 -0.184)
OKLCH	oklch(36.79% 0.186 277.6)
XYZ	xyz(7.9225, 4.2306, 32.2908)
Luminance	0.0423 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#31229D #8E9D22

analogous

#22519D #31229D #6E229D

triadic

#31229D #9D3122 #229D31

tetradic

#31229D #9D2251 #8E9D22 #229D6E

square

#31229D #9D2251 #8E9D22 #229D6E

split-complementary

#31229D #9D6E22 #519D22

monochromatic

#120C38 #21176B #31229D #412DCF #6D5DDC

Accessibility & contrast

On white

11.37

#31229D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.85

#31229D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #31229D

11.37:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##31229D	#FFFFFF	#000000	##FFFFFF
##31229D	1.00	11.37	1.85	11.37
#FFFFFF	11.37	1.00	21.00	1.00
#000000	1.85	21.00	1.00	21.00
##FFFFFF	11.37	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003FA0

Deuteranopia (green-blind)

#00359B

Tritanopia (blue-blind)

#00475F

Achromatopsia (no color)

#3A3A3A

Design tokens & code

CSS

--color: #31229d;
/* rgb */ color: rgb(49, 34, 157);
/* oklch */ color: oklch(36.8% 0.186 277.6);

Tailwind

colors: {
  custom: {
    50: '#7960bb',
    500: '#31229d',
    950: '#000000',
  },
}

SCSS

$custom: #31229d;
$custom-light: #7960bb;
$custom-dark: #000000;

JSON

{
  "hex": "#31229d",
  "rgb": {
    "r": 49,
    "g": 34,
    "b": 157
  },
  "hsl": {
    "h": 247.317,
    "s": 64.398,
    "l": 37.451
  },
  "oklch": {
    "l": 0.3679,
    "c": 0.18563,
    "h": 277.6
  },
  "luminance": 0.04231
}

Semantic roles & 50–950 ramp

primary

#31229D

secondary

#B4C15A

accent

#E740D3

background

#F8F5FB

surface

#EFEAF6

border

#CAC6D0

text

#0A0512

muted

#7C7981

Preview Lab

Preview with #31229D

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

Preview Lab → · Contrast checker → · Palette generator →