#2B31A2#2B31A2

#2B31A2 is a dark, vivid blue. Relative luminance 0.053; OKLCH L 39.1% C 0.178 H 272.4°. Best body text is #FFFFFF at 10.18:1 contrast (WCAG AA passes).

Color values

HEX	#2B31A2
RGB	rgb(43, 49, 162)
HSL	hsl(237, 58%, 40%)
HSV	hsv(237, 73%, 64%)
CMYK	cmyk(73.5%, 69.8%, 0%, 36.5%)
CIE-LAB	lab(27.62, 36.56, -61.46)
CIE-LCH	lch(27.62, 71.52, 300.75°)
OKLab	oklab(39.12% 0.0074 -0.1778)
OKLCH	oklch(39.12% 0.178 272.4)
XYZ	xyz(8.6140, 5.3180, 34.7479)
Luminance	0.0532 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2B31A2 #A29C2B

analogous

#2B6CA2 #2B31A2 #612BA2

triadic

#2B31A2 #A22B31 #31A22B

tetradic

#2B31A2 #A22B6C #A29C2B #2BA261

square

#2B31A2 #A22B6C #A29C2B #2BA261

split-complementary

#2B31A2 #A2612B #6CA22B

monochromatic

#111441 #1E2272 #2B31A2 #3E45CC #6F74D9

Accessibility & contrast

On white

10.18

#2B31A2 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.06

#2B31A2 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2B31A2

10.18:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2B31A2	#FFFFFF	#000000	##FFFFFF
##2B31A2	1.00	10.18	2.06	10.18
#FFFFFF	10.18	1.00	21.00	1.00
#000000	2.06	21.00	1.00	21.00
##FFFFFF	10.18	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0047A5

Deuteranopia (green-blind)

#003CA0

Tritanopia (blue-blind)

#005065

Achromatopsia (no color)

#414141

Design tokens & code

CSS

--color: #2b31a2;
/* rgb */ color: rgb(43, 49, 162);
/* oklch */ color: oklch(39.1% 0.178 272.4);

Tailwind

colors: {
  custom: {
    50: '#776abf',
    500: '#2b31a2',
    950: '#000000',
  },
}

SCSS

$custom: #2b31a2;
$custom-light: #776abf;
$custom-dark: #000000;

JSON

{
  "hex": "#2b31a2",
  "rgb": {
    "r": 43,
    "g": 49,
    "b": 162
  },
  "hsl": {
    "h": 236.975,
    "s": 58.049,
    "l": 40.196
  },
  "oklch": {
    "l": 0.39115,
    "c": 0.17792,
    "h": 272.4
  },
  "luminance": 0.05319
}

Semantic roles & 50–950 ramp

primary

#2B31A2

secondary

#C0BB69

accent

#D947E1

background

#F7F6FB

surface

#EEEBF7

border

#C9C6D0

text

#0A0612

muted

#7C7A81

Preview Lab

Preview with #2B31A2

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

Preview Lab → · Contrast checker → · Palette generator →