#2C31A9#2C31A9

#2C31A9 is a dark, vivid blue. Relative luminance 0.056; OKLCH L 39.9% C 0.187 H 272.4°. Best body text is #FFFFFF at 9.91:1 contrast (WCAG AA passes).

Color values

HEX	#2C31A9
RGB	rgb(44, 49, 169)
HSL	hsl(238, 59%, 42%)
HSV	hsv(238, 74%, 66%)
CMYK	cmyk(74%, 71%, 0%, 33.7%)
CIE-LAB	lab(28.37, 39.12, -64.46)
CIE-LCH	lch(28.37, 75.40, 301.26°)
OKLab	oklab(39.88% 0.0077 -0.1865)
OKLCH	oklch(39.88% 0.187 272.4)
XYZ	xyz(9.2960, 5.5957, 38.1186)
Luminance	0.0560 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Blue With A Hint Of Purple

#533CC6

ΔE00 6.88

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2C31A9 #A9A42C

analogous

#2C70A9 #2C31A9 #662CA9

triadic

#2C31A9 #A92C31 #31A92C

tetradic

#2C31A9 #A92C70 #A9A42C #2CA966

square

#2C31A9 #A92C70 #A9A42C #2CA966

split-complementary

#2C31A9 #A9662C #70A92C

monochromatic

#131548 #1F2378 #2C31A9 #4449CE #7479DB

Accessibility & contrast

On white

9.91

#2C31A9 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.12

#2C31A9 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2C31A9

9.91:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2C31A9	#FFFFFF	#000000	##FFFFFF
##2C31A9	1.00	9.91	2.12	9.91
#FFFFFF	9.91	1.00	21.00	1.00
#000000	2.12	21.00	1.00	21.00
##FFFFFF	9.91	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0049AD

Deuteranopia (green-blind)

#003DA7

Tritanopia (blue-blind)

#005269

Achromatopsia (no color)

#434343

Design tokens & code

CSS

--color: #2c31a9;
/* rgb */ color: rgb(44, 49, 169);
/* oklch */ color: oklch(39.9% 0.187 272.4);

Tailwind

colors: {
  custom: {
    50: '#796ac4',
    500: '#2c31a9',
    950: '#000000',
  },
}

SCSS

$custom: #2c31a9;
$custom-light: #796ac4;
$custom-dark: #000000;

JSON

{
  "hex": "#2c31a9",
  "rgb": {
    "r": 44,
    "g": 49,
    "b": 169
  },
  "hsl": {
    "h": 237.6,
    "s": 58.685,
    "l": 41.765
  },
  "oklch": {
    "l": 0.39877,
    "c": 0.18664,
    "h": 272.4
  },
  "luminance": 0.05597
}

Semantic roles & 50–950 ramp

primary

#2C31A9

secondary

#C3BF6E

accent

#DC46E2

background

#F8F6FC

surface

#EFEBF8

border

#CAC6D1

text

#0B0613

muted

#7C7A82

Preview Lab

Preview with #2C31A9

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

Preview Lab → · Contrast checker → · Palette generator →