#2C31B8#2C31B8

#2C31B8 is a dark, highly saturated blue. Relative luminance 0.062; OKLCH L 41.4% C 0.205 H 271.5°. Best body text is #FFFFFF at 9.38:1 contrast (WCAG AA passes).

Color values

HEX	#2C31B8
RGB	rgb(44, 49, 184)
HSL	hsl(238, 61%, 45%)
HSV	hsv(238, 76%, 72%)
CMYK	cmyk(76.1%, 73.4%, 0%, 27.8%)
CIE-LAB	lab(29.89, 44.27, -70.91)
CIE-LCH	lch(29.89, 83.59, 301.97°)
OKLab	oklab(41.42% 0.0055 -0.2053)
OKLCH	oklch(41.42% 0.205 271.5)
XYZ	xyz(10.7858, 6.1916, 45.9648)
Luminance	0.0619 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Blue With A Hint Of Purple

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2C31B8 #B8B32C

analogous

#2C77B8 #2C31B8 #6D2CB8

triadic

#2C31B8 #B82C31 #31B82C

tetradic

#2C31B8 #B82C77 #B8B32C #2CB86D

square

#2C31B8 #B82C77 #B8B32C #2CB86D

split-complementary

#2C31B8 #B86D2C #77B82C

monochromatic

#141755 #202487 #2C31B8 #4D52D4 #7E82E0

Accessibility & contrast

On white

9.38

#2C31B8 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.24

#2C31B8 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2C31B8

9.38:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2C31B8	#FFFFFF	#000000	##FFFFFF
##2C31B8	1.00	9.38	2.24	9.38
#FFFFFF	9.38	1.00	21.00	1.00
#000000	2.24	21.00	1.00	21.00
##FFFFFF	9.38	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004DBC

Deuteranopia (green-blind)

#003FB6

Tritanopia (blue-blind)

#005872

Achromatopsia (no color)

#464646

Design tokens & code

CSS

--color: #2c31b8;
/* rgb */ color: rgb(44, 49, 184);
/* oklch */ color: oklch(41.4% 0.205 271.5);

Tailwind

colors: {
  custom: {
    50: '#7c6acf',
    500: '#2c31b8',
    950: '#000000',
  },
}

SCSS

$custom: #2c31b8;
$custom-light: #7c6acf;
$custom-dark: #000000;

JSON

{
  "hex": "#2c31b8",
  "rgb": {
    "r": 44,
    "g": 49,
    "b": 184
  },
  "hsl": {
    "h": 237.857,
    "s": 61.404,
    "l": 44.706
  },
  "oklch": {
    "l": 0.41422,
    "c": 0.20535,
    "h": 271.5
  },
  "luminance": 0.06193
}

Semantic roles & 50–950 ramp

primary

#2C31B8

secondary

#C9C677

accent

#DF43E5

background

#F8F6FC

surface

#F0EBF9

border

#CBC6D2

text

#0B0714

muted

#7C7A82

Preview Lab

Preview with #2C31B8

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

Preview Lab → · Contrast checker → · Palette generator →