#2C31AB#2C31AB

#2C31AB is a dark, vivid blue. Relative luminance 0.057; OKLCH L 40.1% C 0.189 H 272.2°. Best body text is #FFFFFF at 9.84:1 contrast (WCAG AA passes).

Color values

HEX	#2C31AB
RGB	rgb(44, 49, 171)
HSL	hsl(238, 59%, 42%)
HSV	hsv(238, 74%, 67%)
CMYK	cmyk(74.3%, 71.3%, 0%, 32.9%)
CIE-LAB	lab(28.57, 39.82, -65.33)
CIE-LCH	lch(28.57, 76.51, 301.36°)
OKLab	oklab(40.08% 0.0074 -0.189)
OKLCH	oklch(40.08% 0.189 272.2)
XYZ	xyz(9.4852, 5.6714, 39.1150)
Luminance	0.0567 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Blue With A Hint Of Purple

#533CC6

ΔE00 6.69

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2C31AB #ABA62C

analogous

#2C70AB #2C31AB #672CAB

triadic

#2C31AB #AB2C31 #31AB2C

tetradic

#2C31AB #AB2C70 #ABA62C #2CAB67

square

#2C31AB #AB2C70 #ABA62C #2CAB67

split-complementary

#2C31AB #AB672C #70AB2C

monochromatic

#13154A #1F237A #2C31AB #454ACF #767ADC

Accessibility & contrast

On white

9.84

#2C31AB on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.13

#2C31AB on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2C31AB

9.84:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2C31AB	#FFFFFF	#000000	##FFFFFF
##2C31AB	1.00	9.84	2.13	9.84
#FFFFFF	9.84	1.00	21.00	1.00
#000000	2.13	21.00	1.00	21.00
##FFFFFF	9.84	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0049AF

Deuteranopia (green-blind)

#003DA9

Tritanopia (blue-blind)

#00536A

Achromatopsia (no color)

#434343

Design tokens & code

CSS

--color: #2c31ab;
/* rgb */ color: rgb(44, 49, 171);
/* oklch */ color: oklch(40.1% 0.189 272.2);

Tailwind

colors: {
  custom: {
    50: '#796ac5',
    500: '#2c31ab',
    950: '#000000',
  },
}

SCSS

$custom: #2c31ab;
$custom-light: #796ac5;
$custom-dark: #000000;

JSON

{
  "hex": "#2c31ab",
  "rgb": {
    "r": 44,
    "g": 49,
    "b": 171
  },
  "hsl": {
    "h": 237.638,
    "s": 59.07,
    "l": 42.157
  },
  "oklch": {
    "l": 0.4008,
    "c": 0.18917,
    "h": 272.2
  },
  "luminance": 0.05672
}

Semantic roles & 50–950 ramp

primary

#2C31AB

secondary

#C3C06F

accent

#DC46E2

background

#F8F6FC

surface

#EFEBF8

border

#CAC6D1

text

#0B0613

muted

#7C7A82

Preview Lab

Preview with #2C31AB

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

Preview Lab → · Contrast checker → · Palette generator →