#2B1B9D#2B1B9D

#2B1B9D is a dark, vivid blue. Relative luminance 0.037; OKLCH L 35.5% C 0.193 H 275.7°. Best body text is #FFFFFF at 12.02:1 contrast (WCAG AA passes).

Color values

HEX	#2B1B9D
RGB	rgb(43, 27, 157)
HSL	hsl(247, 71%, 36%)
HSV	hsv(247, 83%, 62%)
CMYK	cmyk(72.6%, 82.8%, 0%, 38.4%)
CIE-LAB	lab(22.76, 47.12, -66.44)
CIE-LCH	lch(22.76, 81.45, 305.34°)
OKLab	oklab(35.52% 0.0192 -0.1921)
OKLCH	oklch(35.52% 0.193 275.7)
XYZ	xyz(7.4720, 3.7311, 32.2181)
Luminance	0.0373 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2B1B9D #8D9D1B

analogous

#1B4C9D #2B1B9D #6C1B9D

triadic

#2B1B9D #9D2B1B #1B9D2B

tetradic

#2B1B9D #9D1B4C #8D9D1B #1B9D6C

square

#2B1B9D #9D1B4C #8D9D1B #1B9D6C

split-complementary

#2B1B9D #9D6C1B #4C9D1B

monochromatic

#0E0935 #1D1269 #2B1B9D #3924D1 #6351E1

Accessibility & contrast

On white

12.02

#2B1B9D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.75

#2B1B9D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2B1B9D

12.02:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2B1B9D	#FFFFFF	#000000	##FFFFFF
##2B1B9D	1.00	12.02	1.75	12.02
#FFFFFF	12.02	1.00	21.00	1.00
#000000	1.75	21.00	1.00	21.00
##FFFFFF	12.02	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003CA1

Deuteranopia (green-blind)

#00309B

Tritanopia (blue-blind)

#00445D

Achromatopsia (no color)

#363636

Design tokens & code

CSS

--color: #2b1b9d;
/* rgb */ color: rgb(43, 27, 157);
/* oklch */ color: oklch(35.5% 0.193 275.7);

Tailwind

colors: {
  custom: {
    50: '#785cbb',
    500: '#2b1b9d',
    950: '#000000',
  },
}

SCSS

$custom: #2b1b9d;
$custom-light: #785cbb;
$custom-dark: #000000;

JSON

{
  "hex": "#2b1b9d",
  "rgb": {
    "r": 43,
    "g": 27,
    "b": 157
  },
  "hsl": {
    "h": 247.385,
    "s": 70.652,
    "l": 36.078
  },
  "oklch": {
    "l": 0.35517,
    "c": 0.19303,
    "h": 275.7
  },
  "luminance": 0.03732
}

Semantic roles & 50–950 ramp

primary

#2B1B9D

secondary

#B6C450

accent

#ED3AD7

background

#F8F5FB

surface

#EFE9F6

border

#CAC5D0

text

#0A0412

muted

#7C7981

Preview Lab

Preview with #2B1B9D

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

Preview Lab → · Contrast checker → · Palette generator →