#2B1BB0#2B1BB0

#2B1BB0 is a dark, highly saturated blue. Relative luminance 0.044; OKLCH L 37.8% C 0.215 H 273.7°. Best body text is #FFFFFF at 11.13:1 contrast (WCAG AA passes).

Color values

HEX	#2B1BB0
RGB	rgb(43, 27, 176)
HSL	hsl(246, 73%, 40%)
HSV	hsv(246, 85%, 69%)
CMYK	cmyk(75.6%, 84.7%, 0%, 31%)
CIE-LAB	lab(25.05, 52.82, -74.16)
CIE-LCH	lch(25.05, 91.05, 305.46°)
OKLab	oklab(37.75% 0.0138 -0.2144)
OKLCH	oklch(37.75% 0.215 273.7)
XYZ	xyz(9.2221, 4.4311, 41.4351)
Luminance	0.0443 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2B1BB0 #A0B01B

analogous

#1B56B0 #2B1BB0 #761BB0

triadic

#2B1BB0 #B02B1B #1BB02B

tetradic

#2B1BB0 #B01B56 #A0B01B #1BB076

square

#2B1BB0 #B01B56 #A0B01B #1BB076

split-complementary

#2B1BB0 #B0761B #56B01B

monochromatic

#110B46 #1E137B #2B1BB0 #3D2ADE #6E5FE6

Accessibility & contrast

On white

11.13

#2B1BB0 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.89

#2B1BB0 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2B1BB0

11.13:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2B1BB0	#FFFFFF	#000000	##FFFFFF
##2B1BB0	1.00	11.13	1.89	11.13
#FFFFFF	11.13	1.00	21.00	1.00
#000000	1.89	21.00	1.00	21.00
##FFFFFF	11.13	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0042B4

Deuteranopia (green-blind)

#0034AE

Tritanopia (blue-blind)

#004C68

Achromatopsia (no color)

#3B3B3B

Design tokens & code

CSS

--color: #2b1bb0;
/* rgb */ color: rgb(43, 27, 176);
/* oklch */ color: oklch(37.8% 0.215 273.7);

Tailwind

colors: {
  custom: {
    50: '#7c5ec9',
    500: '#2b1bb0',
    950: '#000000',
  },
}

SCSS

$custom: #2b1bb0;
$custom-light: #7c5ec9;
$custom-dark: #000000;

JSON

{
  "hex": "#2b1bb0",
  "rgb": {
    "r": 43,
    "g": 27,
    "b": 176
  },
  "hsl": {
    "h": 246.443,
    "s": 73.399,
    "l": 39.804
  },
  "oklch": {
    "l": 0.37752,
    "c": 0.21487,
    "h": 273.7
  },
  "luminance": 0.04432
}

Semantic roles & 50–950 ramp

primary

#2B1BB0

secondary

#BFCB5C

accent

#F038DC

background

#F8F5FC

surface

#F0E9F9

border

#CBC5D2

text

#0B0513

muted

#7C7982

Preview Lab

Preview with #2B1BB0

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

Preview Lab → · Contrast checker → · Palette generator →