#291BB0#291BB0

#291BB0 is a dark, highly saturated blue. Relative luminance 0.044; OKLCH L 37.6% C 0.215 H 273.0°. Best body text is #FFFFFF at 11.18:1 contrast (WCAG AA passes).

Color values

HEX	#291BB0
RGB	rgb(41, 27, 176)
HSL	hsl(246, 73%, 40%)
HSV	hsv(246, 85%, 69%)
CMYK	cmyk(76.7%, 84.7%, 0%, 31%)
CIE-LAB	lab(24.92, 52.71, -74.38)
CIE-LCH	lch(24.92, 91.16, 305.32°)
OKLab	oklab(37.63% 0.0112 -0.2151)
OKLCH	oklch(37.63% 0.215 273)
XYZ	xyz(9.1402, 4.3889, 41.4313)
Luminance	0.0439 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#291BB0 #A2B01B

analogous

#1B57B0 #291BB0 #741BB0

triadic

#291BB0 #B0291B #1BB029

tetradic

#291BB0 #B01B57 #A2B01B #1BB074

square

#291BB0 #B01B57 #A2B01B #1BB074

split-complementary

#291BB0 #B0741B #57B01B

monochromatic

#100B46 #1D137B #291BB0 #3B2ADE #6C5FE6

Accessibility & contrast

On white

11.18

#291BB0 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.88

#291BB0 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #291BB0

11.18:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##291BB0	#FFFFFF	#000000	##FFFFFF
##291BB0	1.00	11.18	1.88	11.18
#FFFFFF	11.18	1.00	21.00	1.00
#000000	1.88	21.00	1.00	21.00
##FFFFFF	11.18	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: #291bb0;
/* rgb */ color: rgb(41, 27, 176);
/* oklch */ color: oklch(37.6% 0.215 273.0);

Tailwind

colors: {
  custom: {
    50: '#7b5dc9',
    500: '#291bb0',
    950: '#000000',
  },
}

SCSS

$custom: #291bb0;
$custom-light: #7b5dc9;
$custom-dark: #000000;

JSON

{
  "hex": "#291bb0",
  "rgb": {
    "r": 41,
    "g": 27,
    "b": 176
  },
  "hsl": {
    "h": 245.638,
    "s": 73.399,
    "l": 39.804
  },
  "oklch": {
    "l": 0.37627,
    "c": 0.2154,
    "h": 273
  },
  "luminance": 0.0439
}

Semantic roles & 50–950 ramp

primary

#291BB0

secondary

#C0CB5C

accent

#F038DF

background

#F8F5FC

surface

#EFE9F9

border

#CAC5D2

text

#0B0513

muted

#7C7982

Preview Lab

Preview with #291BB0

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

Preview Lab → · Contrast checker → · Palette generator →