#291D8B#291D8B

#291D8B is a dark, vivid blue. Relative luminance 0.032; OKLCH L 33.6% C 0.170 H 276.9°. Best body text is #FFFFFF at 12.78:1 contrast (WCAG AA passes).

Color values

HEX	#291D8B
RGB	rgb(41, 29, 139)
HSL	hsl(247, 65%, 33%)
HSV	hsv(247, 79%, 55%)
CMYK	cmyk(70.5%, 79.1%, 0%, 45.5%)
CIE-LAB	lab(20.88, 40.26, -58.43)
CIE-LCH	lch(20.88, 70.96, 304.57°)
OKLab	oklab(33.56% 0.0205 -0.1689)
OKLCH	oklch(33.56% 0.17 276.9)
XYZ	xyz(6.0125, 3.2137, 24.7245)
Luminance	0.0321 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#291D8B #7F8B1D

analogous

#1D488B #291D8B #601D8B

triadic

#291D8B #8B291D #1D8B29

tetradic

#291D8B #8B1D48 #7F8B1D #1D8B60

square

#291D8B #8B1D48 #7F8B1D #1D8B60

split-complementary

#291D8B #8B601D #488B1D

monochromatic

#0B0826 #1A1258 #291D8B #3828BE #5949D9

Accessibility & contrast

On white

12.78

#291D8B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.64

#291D8B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #291D8B

12.78:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##291D8B	#FFFFFF	#000000	##FFFFFF
##291D8B	1.00	12.78	1.64	12.78
#FFFFFF	12.78	1.00	21.00	1.00
#000000	1.64	21.00	1.00	21.00
##FFFFFF	12.78	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00378E

Deuteranopia (green-blind)

#002D89

Tritanopia (blue-blind)

#003E53

Achromatopsia (no color)

#323232

Design tokens & code

CSS

--color: #291d8b;
/* rgb */ color: rgb(41, 29, 139);
/* oklch */ color: oklch(33.6% 0.170 276.9);

Tailwind

colors: {
  custom: {
    50: '#725cae',
    500: '#291d8b',
    950: '#000000',
  },
}

SCSS

$custom: #291d8b;
$custom-light: #725cae;
$custom-dark: #000000;

JSON

{
  "hex": "#291d8b",
  "rgb": {
    "r": 41,
    "g": 29,
    "b": 139
  },
  "hsl": {
    "h": 246.545,
    "s": 65.476,
    "l": 32.941
  },
  "oklch": {
    "l": 0.33561,
    "c": 0.1701,
    "h": 276.9
  },
  "luminance": 0.03214
}

Semantic roles & 50–950 ramp

primary

#291D8B

secondary

#AFBB49

accent

#E83FD6

background

#F7F5FA

surface

#EDE9F5

border

#C8C5CF

text

#090410

muted

#7B797F

Preview Lab

Preview with #291D8B

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

Preview Lab → · Contrast checker → · Palette generator →