#291C8B#291C8B

#291C8B is a dark, vivid blue. Relative luminance 0.032; OKLCH L 33.4% C 0.171 H 277.0°. Best body text is #FFFFFF at 12.86:1 contrast (WCAG AA passes).

Color values

HEX	#291C8B
RGB	rgb(41, 28, 139)
HSL	hsl(247, 66%, 33%)
HSV	hsv(247, 80%, 55%)
CMYK	cmyk(70.5%, 79.9%, 0%, 45.5%)
CIE-LAB	lab(20.69, 40.79, -58.74)
CIE-LCH	lch(20.69, 71.51, 304.78°)
OKLab	oklab(33.43% 0.021 -0.1697)
OKLCH	oklch(33.43% 0.171 277)
XYZ	xyz(5.9884, 3.1655, 24.7165)
Luminance	0.0317 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#291C8B #7E8B1C

analogous

#1C468B #291C8B #601C8B

triadic

#291C8B #8B291C #1C8B29

tetradic

#291C8B #8B1C46 #7E8B1C #1C8B60

square

#291C8B #8B1C46 #7E8B1C #1C8B60

split-complementary

#291C8B #8B601C #468B1C

monochromatic

#0B0725 #1A1258 #291C8B #3826BE #5947DA

Accessibility & contrast

On white

12.86

#291C8B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.63

#291C8B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #291C8B

12.86:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##291C8B	#FFFFFF	#000000	##FFFFFF
##291C8B	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: #291c8b;
/* rgb */ color: rgb(41, 28, 139);
/* oklch */ color: oklch(33.4% 0.171 277.0);

Tailwind

colors: {
  custom: {
    50: '#735bae',
    500: '#291c8b',
    950: '#000000',
  },
}

SCSS

$custom: #291c8b;
$custom-light: #735bae;
$custom-dark: #000000;

JSON

{
  "hex": "#291c8b",
  "rgb": {
    "r": 41,
    "g": 28,
    "b": 139
  },
  "hsl": {
    "h": 247.027,
    "s": 66.467,
    "l": 32.745
  },
  "oklch": {
    "l": 0.33431,
    "c": 0.17103,
    "h": 277
  },
  "luminance": 0.03166
}

Semantic roles & 50–950 ramp

primary

#291C8B

secondary

#AEBC47

accent

#E93ED5

background

#F7F5FA

surface

#EDE9F5

border

#C8C5CF

text

#090410

muted

#7B797F

Preview Lab

Preview with #291C8B

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

Preview Lab → · Contrast checker → · Palette generator →