#2B1F73#2B1F73

#2B1F73 is a dark, vivid blue. Relative luminance 0.027; OKLCH L 31.5% C 0.137 H 281.6°. Best body text is #FFFFFF at 13.58:1 contrast (WCAG AA passes).

Color values

HEX	#2B1F73
RGB	rgb(43, 31, 115)
HSL	hsl(249, 58%, 29%)
HSV	hsv(249, 73%, 45%)
CMYK	cmyk(62.6%, 73%, 0%, 54.9%)
CIE-LAB	lab(18.93, 31.37, -46.40)
CIE-LCH	lch(18.93, 56.01, 304.06°)
OKLab	oklab(31.47% 0.0276 -0.1337)
OKLCH	oklch(31.47% 0.137 281.6)
XYZ	xyz(4.5798, 2.7311, 16.5021)
Luminance	0.0273 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2B1F73 #67731F

analogous

#1F3D73 #2B1F73 #551F73

triadic

#2B1F73 #732B1F #1F732B

tetradic

#2B1F73 #731F3D #67731F #1F7355

square

#2B1F73 #731F3D #67731F #1F7355

split-complementary

#2B1F73 #73551F #3D731F

monochromatic

#090618 #191243 #2B1F73 #3D2CA3 #5541CC

Accessibility & contrast

On white

13.58

#2B1F73 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.55

#2B1F73 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2B1F73

13.58:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2B1F73	#FFFFFF	#000000	##FFFFFF
##2B1F73	1.00	13.58	1.55	13.58
#FFFFFF	13.58	1.00	21.00	1.00
#000000	1.55	21.00	1.00	21.00
##FFFFFF	13.58	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003176

Deuteranopia (green-blind)

#002B71

Tritanopia (blue-blind)

#003546

Achromatopsia (no color)

#2E2E2E

Design tokens & code

CSS

--color: #2b1f73;
/* rgb */ color: rgb(43, 31, 115);
/* oklch */ color: oklch(31.5% 0.137 281.6);

Tailwind

colors: {
  custom: {
    50: '#6e5c9c',
    500: '#2b1f73',
    950: '#000000',
  },
}

SCSS

$custom: #2b1f73;
$custom-light: #6e5c9c;
$custom-dark: #000000;

JSON

{
  "hex": "#2b1f73",
  "rgb": {
    "r": 43,
    "g": 31,
    "b": 115
  },
  "hsl": {
    "h": 248.571,
    "s": 57.534,
    "l": 28.627
  },
  "oklch": {
    "l": 0.31466,
    "c": 0.13652,
    "h": 281.6
  },
  "luminance": 0.02731
}

Semantic roles & 50–950 ramp

primary

#2B1F73

secondary

#99A747

accent

#E147CB

background

#F7F5F9

surface

#EDE9F2

border

#C8C5CC

text

#08040E

muted

#7B797E

Preview Lab

Preview with #2B1F73

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

Preview Lab → · Contrast checker → · Palette generator →