#2C31A4#2C31A4

#2C31A4 is a dark, vivid blue. Relative luminance 0.054; OKLCH L 39.4% C 0.180 H 272.6°. Best body text is #FFFFFF at 10.08:1 contrast (WCAG AA passes).

Color values

HEX	#2C31A4
RGB	rgb(44, 49, 164)
HSL	hsl(238, 58%, 41%)
HSV	hsv(238, 73%, 64%)
CMYK	cmyk(73.2%, 70.1%, 0%, 35.7%)
CIE-LAB	lab(27.88, 37.38, -62.25)
CIE-LCH	lch(27.88, 72.61, 300.98°)
OKLab	oklab(39.37% 0.0083 -0.18)
OKLCH	oklch(39.37% 0.18 272.6)
XYZ	xyz(8.8356, 5.4115, 35.6936)
Luminance	0.0541 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2C31A4 #A49F2C

analogous

#2C6DA4 #2C31A4 #632CA4

triadic

#2C31A4 #A42C31 #31A42C

tetradic

#2C31A4 #A42C6D #A49F2C #2CA463

square

#2C31A4 #A42C6D #A49F2C #2CA463

split-complementary

#2C31A4 #A4632C #6DA42C

monochromatic

#121443 #1F2374 #2C31A4 #4147CC #7176D9

Accessibility & contrast

On white

10.08

#2C31A4 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.08

#2C31A4 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2C31A4

10.08:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2C31A4	#FFFFFF	#000000	##FFFFFF
##2C31A4	1.00	10.08	2.08	10.08
#FFFFFF	10.08	1.00	21.00	1.00
#000000	2.08	21.00	1.00	21.00
##FFFFFF	10.08	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0047A7

Deuteranopia (green-blind)

#003CA2

Tritanopia (blue-blind)

#005166

Achromatopsia (no color)

#424242

Design tokens & code

CSS

--color: #2c31a4;
/* rgb */ color: rgb(44, 49, 164);
/* oklch */ color: oklch(39.4% 0.180 272.6);

Tailwind

colors: {
  custom: {
    50: '#786ac0',
    500: '#2c31a4',
    950: '#000000',
  },
}

SCSS

$custom: #2c31a4;
$custom-light: #786ac0;
$custom-dark: #000000;

JSON

{
  "hex": "#2c31a4",
  "rgb": {
    "r": 44,
    "g": 49,
    "b": 164
  },
  "hsl": {
    "h": 237.5,
    "s": 57.692,
    "l": 40.784
  },
  "oklch": {
    "l": 0.39374,
    "c": 0.18023,
    "h": 272.6
  },
  "luminance": 0.05412
}

Semantic roles & 50–950 ramp

primary

#2C31A4

secondary

#C0BD6B

accent

#DB47E1

background

#F7F6FC

surface

#EEEBF8

border

#C9C6D1

text

#0A0612

muted

#7C7A81

Preview Lab

Preview with #2C31A4

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

Preview Lab → · Contrast checker → · Palette generator →