#2B1D8A#2B1D8A

#2B1D8A is a dark, vivid blue. Relative luminance 0.032; OKLCH L 33.6% C 0.168 H 278.1°. Best body text is #FFFFFF at 12.76:1 contrast (WCAG AA passes).

Color values

HEX	#2B1D8A
RGB	rgb(43, 29, 138)
HSL	hsl(248, 65%, 33%)
HSV	hsv(248, 79%, 54%)
CMYK	cmyk(68.8%, 79%, 0%, 45.9%)
CIE-LAB	lab(20.93, 40.14, -57.72)
CIE-LCH	lch(20.93, 70.30, 304.82°)
OKLab	oklab(33.6% 0.0236 -0.1667)
OKLCH	oklch(33.6% 0.168 278.1)
XYZ	xyz(6.0216, 3.2268, 24.3453)
Luminance	0.0323 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2B1D8A #7C8A1D

analogous

#1D468A #2B1D8A #611D8A

triadic

#2B1D8A #8A2B1D #1D8A2B

tetradic

#2B1D8A #8A1D46 #7C8A1D #1D8A61

square

#2B1D8A #8A1D46 #7C8A1D #1D8A61

split-complementary

#2B1D8A #8A611D #468A1D

monochromatic

#0B0825 #1B1257 #2B1D8A #3B28BD #5B49D9

Accessibility & contrast

On white

12.76

#2B1D8A on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.65

#2B1D8A on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2B1D8A

12.76:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2B1D8A	#FFFFFF	#000000	##FFFFFF
##2B1D8A	1.00	12.76	1.65	12.76
#FFFFFF	12.76	1.00	21.00	1.00
#000000	1.65	21.00	1.00	21.00
##FFFFFF	12.76	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00378D

Deuteranopia (green-blind)

#002E88

Tritanopia (blue-blind)

#003D53

Achromatopsia (no color)

#323232

Design tokens & code

CSS

--color: #2b1d8a;
/* rgb */ color: rgb(43, 29, 138);
/* oklch */ color: oklch(33.6% 0.168 278.1);

Tailwind

colors: {
  custom: {
    50: '#735cad',
    500: '#2b1d8a',
    950: '#000000',
  },
}

SCSS

$custom: #2b1d8a;
$custom-light: #735cad;
$custom-dark: #000000;

JSON

{
  "hex": "#2b1d8a",
  "rgb": {
    "r": 43,
    "g": 29,
    "b": 138
  },
  "hsl": {
    "h": 247.706,
    "s": 65.269,
    "l": 32.745
  },
  "oklch": {
    "l": 0.33604,
    "c": 0.16839,
    "h": 278.1
  },
  "luminance": 0.03227
}

Semantic roles & 50–950 ramp

primary

#2B1D8A

secondary

#ACBB48

accent

#E840D3

background

#F7F5FA

surface

#EDE9F4

border

#C8C5CE

text

#090410

muted

#7B797F

Preview Lab

Preview with #2B1D8A

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

Preview Lab → · Contrast checker → · Palette generator →