#2B1A8D#2B1A8D

#2B1A8D is a dark, vivid blue. Relative luminance 0.032; OKLCH L 33.6% C 0.175 H 278.0°. Best body text is #FFFFFF at 12.84:1 contrast (WCAG AA passes).

Color values

HEX	#2B1A8D
RGB	rgb(43, 26, 141)
HSL	hsl(249, 69%, 33%)
HSV	hsv(249, 82%, 55%)
CMYK	cmyk(69.5%, 81.6%, 0%, 44.7%)
CIE-LAB	lab(20.73, 42.64, -59.92)
CIE-LCH	lch(20.73, 73.55, 305.44°)
OKLab	oklab(33.57% 0.0243 -0.1731)
OKLCH	oklch(33.57% 0.175 278)
XYZ	xyz(6.1718, 3.1749, 25.4817)
Luminance	0.0318 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2B1A8D #7C8D1A

analogous

#1A428D #2B1A8D #651A8D

triadic

#2B1A8D #8D2B1A #1A8D2B

tetradic

#2B1A8D #8D1A42 #7C8D1A #1A8D65

square

#2B1A8D #8D1A42 #7C8D1A #1A8D65

split-complementary

#2B1A8D #8D651A #428D1A

monochromatic

#0B0726 #1B1059 #2B1A8D #3B24C1 #5B45DD

Accessibility & contrast

On white

12.84

#2B1A8D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.64

#2B1A8D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2B1A8D

12.84:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2B1A8D	#FFFFFF	#000000	##FFFFFF
##2B1A8D	1.00	12.84	1.64	12.84
#FFFFFF	12.84	1.00	21.00	1.00
#000000	1.64	21.00	1.00	21.00
##FFFFFF	12.84	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003690

Deuteranopia (green-blind)

#002D8B

Tritanopia (blue-blind)

#003D54

Achromatopsia (no color)

#323232

Design tokens & code

CSS

--color: #2b1a8d;
/* rgb */ color: rgb(43, 26, 141);
/* oklch */ color: oklch(33.6% 0.175 278.0);

Tailwind

colors: {
  custom: {
    50: '#745ab0',
    500: '#2b1a8d',
    950: '#000000',
  },
}

SCSS

$custom: #2b1a8d;
$custom-light: #745ab0;
$custom-dark: #000000;

JSON

{
  "hex": "#2b1a8d",
  "rgb": {
    "r": 43,
    "g": 26,
    "b": 141
  },
  "hsl": {
    "h": 248.87,
    "s": 68.862,
    "l": 32.745
  },
  "oklch": {
    "l": 0.33565,
    "c": 0.1748,
    "h": 278
  },
  "luminance": 0.03175
}

Semantic roles & 50–950 ramp

primary

#2B1A8D

secondary

#ACBE45

accent

#EC3CD2

background

#F7F5FB

surface

#EEE9F6

border

#C9C5D0

text

#090411

muted

#7B7980

Preview Lab

Preview with #2B1A8D

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

Preview Lab → · Contrast checker → · Palette generator →