#2B1D9A#2B1D9A

#2B1D9A is a dark, vivid blue. Relative luminance 0.037; OKLCH L 35.4% C 0.188 H 275.9°. Best body text is #FFFFFF at 12.03:1 contrast (WCAG AA passes).

Color values

HEX	#2B1D9A
RGB	rgb(43, 29, 154)
HSL	hsl(247, 68%, 36%)
HSV	hsv(247, 81%, 60%)
CMYK	cmyk(72.1%, 81.2%, 0%, 39.6%)
CIE-LAB	lab(22.74, 45.23, -64.64)
CIE-LCH	lch(22.74, 78.89, 304.98°)
OKLab	oklab(35.4% 0.0193 -0.1869)
OKLCH	oklch(35.4% 0.188 275.9)
XYZ	xyz(7.2664, 3.7247, 30.9016)
Luminance	0.0372 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2B1D9A #8C9A1D

analogous

#1D4D9A #2B1D9A #691D9A

triadic

#2B1D9A #9A2B1D #1D9A2B

tetradic

#2B1D9A #9A1D4D #8C9A1D #1D9A69

square

#2B1D9A #9A1D4D #8C9A1D #1D9A69

split-complementary

#2B1D9A #9A691D #4D9A1D

monochromatic

#0E0A33 #1D1366 #2B1D9A #3927CE #6253DF

Accessibility & contrast

On white

12.03

#2B1D9A on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.75

#2B1D9A on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2B1D9A

12.03:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2B1D9A	#FFFFFF	#000000	##FFFFFF
##2B1D9A	1.00	12.03	1.75	12.03
#FFFFFF	12.03	1.00	21.00	1.00
#000000	1.75	21.00	1.00	21.00
##FFFFFF	12.03	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003C9D

Deuteranopia (green-blind)

#003198

Tritanopia (blue-blind)

#00445C

Achromatopsia (no color)

#363636

Design tokens & code

CSS

--color: #2b1d9a;
/* rgb */ color: rgb(43, 29, 154);
/* oklch */ color: oklch(35.4% 0.188 275.9);

Tailwind

colors: {
  custom: {
    50: '#775db9',
    500: '#2b1d9a',
    950: '#000000',
  },
}

SCSS

$custom: #2b1d9a;
$custom-light: #775db9;
$custom-dark: #000000;

JSON

{
  "hex": "#2b1d9a",
  "rgb": {
    "r": 43,
    "g": 29,
    "b": 154
  },
  "hsl": {
    "h": 246.72,
    "s": 68.306,
    "l": 35.882
  },
  "oklch": {
    "l": 0.354,
    "c": 0.18785,
    "h": 275.9
  },
  "luminance": 0.03725
}

Semantic roles & 50–950 ramp

primary

#2B1D9A

secondary

#B5C251

accent

#EB3DD8

background

#F7F5FB

surface

#EEE9F6

border

#C9C5D0

text

#0A0412

muted

#7C7981

Preview Lab

Preview with #2B1D9A

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

Preview Lab → · Contrast checker → · Palette generator →