#2B1B8B#2B1B8B

#2B1B8B is a dark, vivid blue. Relative luminance 0.032; OKLCH L 33.5% C 0.171 H 278.2°. Best body text is #FFFFFF at 12.86:1 contrast (WCAG AA passes).

Color values

HEX	#2B1B8B
RGB	rgb(43, 27, 139)
HSL	hsl(249, 67%, 33%)
HSV	hsv(249, 81%, 55%)
CMYK	cmyk(69.1%, 80.6%, 0%, 45.5%)
CIE-LAB	lab(20.68, 41.51, -58.76)
CIE-LCH	lch(20.68, 71.94, 305.24°)
OKLab	oklab(33.46% 0.0244 -0.1697)
OKLCH	oklch(33.46% 0.171 278.2)
XYZ	xyz(6.0469, 3.1610, 24.7126)
Luminance	0.0316 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2B1B8B #7B8B1B

analogous

#1B438B #2B1B8B #631B8B

triadic

#2B1B8B #8B2B1B #1B8B2B

tetradic

#2B1B8B #8B1B43 #7B8B1B #1B8B63

square

#2B1B8B #8B1B43 #7B8B1B #1B8B63

split-complementary

#2B1B8B #8B631B #438B1B

monochromatic

#0B0725 #1B1158 #2B1B8B #3B25BE #5B45DB

Accessibility & contrast

On white

12.86

#2B1B8B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.63

#2B1B8B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2B1B8B

12.86:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2B1B8B	#FFFFFF	#000000	##FFFFFF
##2B1B8B	1.00	12.86	1.63	12.86
#FFFFFF	12.86	1.00	21.00	1.00
#000000	1.63	21.00	1.00	21.00
##FFFFFF	12.86	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00368E

Deuteranopia (green-blind)

#002D89

Tritanopia (blue-blind)

#003D53

Achromatopsia (no color)

#323232

Design tokens & code

CSS

--color: #2b1b8b;
/* rgb */ color: rgb(43, 27, 139);
/* oklch */ color: oklch(33.5% 0.171 278.2);

Tailwind

colors: {
  custom: {
    50: '#735bae',
    500: '#2b1b8b',
    950: '#000000',
  },
}

SCSS

$custom: #2b1b8b;
$custom-light: #735bae;
$custom-dark: #000000;

JSON

{
  "hex": "#2b1b8b",
  "rgb": {
    "r": 43,
    "g": 27,
    "b": 139
  },
  "hsl": {
    "h": 248.571,
    "s": 67.47,
    "l": 32.549
  },
  "oklch": {
    "l": 0.33461,
    "c": 0.17149,
    "h": 278.2
  },
  "luminance": 0.03162
}

Semantic roles & 50–950 ramp

primary

#2B1B8B

secondary

#ABBC45

accent

#EA3DD2

background

#F7F5FA

surface

#EEE9F5

border

#C9C5CF

text

#090410

muted

#7B797F

Preview Lab

Preview with #2B1B8B

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

Preview Lab → · Contrast checker → · Palette generator →