#31229C#31229C

#31229C is a dark, vivid blue. Relative luminance 0.042; OKLCH L 36.7% C 0.184 H 277.7°. Best body text is #FFFFFF at 11.42:1 contrast (WCAG AA passes).

Color values

HEX	#31229C
RGB	rgb(49, 34, 156)
HSL	hsl(247, 64%, 37%)
HSV	hsv(247, 78%, 61%)
CMYK	cmyk(68.6%, 78.2%, 0%, 38.8%)
CIE-LAB	lab(24.31, 43.87, -63.25)
CIE-LCH	lch(24.31, 76.98, 304.75°)
OKLab	oklab(36.68% 0.0248 -0.1827)
OKLCH	oklch(36.68% 0.184 277.7)
XYZ	xyz(7.8375, 4.1966, 31.8430)
Luminance	0.0420 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#31229C #8D9C22

analogous

#22509C #31229C #6E229C

triadic

#31229C #9C3122 #229C31

tetradic

#31229C #9C2250 #8D9C22 #229C6E

square

#31229C #9C2250 #8D9C22 #229C6E

split-complementary

#31229C #9C6E22 #509C22

monochromatic

#110C38 #21176A #31229C #412DCE #6C5DDC

Accessibility & contrast

On white

11.42

#31229C on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.84

#31229C on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #31229C

11.42:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##31229C	#FFFFFF	#000000	##FFFFFF
##31229C	1.00	11.42	1.84	11.42
#FFFFFF	11.42	1.00	21.00	1.00
#000000	1.84	21.00	1.00	21.00
##FFFFFF	11.42	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003F9F

Deuteranopia (green-blind)

#00359A

Tritanopia (blue-blind)

#00465E

Achromatopsia (no color)

#3A3A3A

Design tokens & code

CSS

--color: #31229c;
/* rgb */ color: rgb(49, 34, 156);
/* oklch */ color: oklch(36.7% 0.184 277.7);

Tailwind

colors: {
  custom: {
    50: '#7960ba',
    500: '#31229c',
    950: '#000000',
  },
}

SCSS

$custom: #31229c;
$custom-light: #7960ba;
$custom-dark: #000000;

JSON

{
  "hex": "#31229c",
  "rgb": {
    "r": 49,
    "g": 34,
    "b": 156
  },
  "hsl": {
    "h": 247.377,
    "s": 64.211,
    "l": 37.255
  },
  "oklch": {
    "l": 0.36682,
    "c": 0.18442,
    "h": 277.7
  },
  "luminance": 0.04197
}

Semantic roles & 50–950 ramp

primary

#31229C

secondary

#B4C05A

accent

#E741D3

background

#F8F5FB

surface

#EFEAF6

border

#CAC6D0

text

#0A0512

muted

#7C7981

Preview Lab

Preview with #31229C

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

Preview Lab → · Contrast checker → · Palette generator →