#291B88#291B88

#291B88 is a dark, vivid blue. Relative luminance 0.030; OKLCH L 33.0% C 0.168 H 277.6°. Best body text is #FFFFFF at 13.07:1 contrast (WCAG AA passes).

Color values

HEX	#291B88
RGB	rgb(41, 27, 136)
HSL	hsl(248, 67%, 32%)
HSV	hsv(248, 80%, 53%)
CMYK	cmyk(69.9%, 80.1%, 0%, 46.7%)
CIE-LAB	lab(20.17, 40.35, -57.72)
CIE-LCH	lch(20.17, 70.43, 304.96°)
OKLab	oklab(32.97% 0.0223 -0.1668)
OKLCH	oklch(32.97% 0.168 277.6)
XYZ	xyz(5.7489, 3.0324, 23.5701)
Luminance	0.0303 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#291B88 #7A881B

analogous

#1B4488 #291B88 #5F1B88

triadic

#291B88 #88291B #1B8829

tetradic

#291B88 #881B44 #7A881B #1B885F

square

#291B88 #881B44 #7A881B #1B885F

split-complementary

#291B88 #885F1B #44881B

monochromatic

#0A0722 #1A1155 #291B88 #3825BB #5744DA

Accessibility & contrast

On white

13.07

#291B88 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.61

#291B88 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #291B88

13.07:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##291B88	#FFFFFF	#000000	##FFFFFF
##291B88	1.00	13.07	1.61	13.07
#FFFFFF	13.07	1.00	21.00	1.00
#000000	1.61	21.00	1.00	21.00
##FFFFFF	13.07	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00358B

Deuteranopia (green-blind)

#002C86

Tritanopia (blue-blind)

#003C51

Achromatopsia (no color)

#313131

Design tokens & code

CSS

--color: #291b88;
/* rgb */ color: rgb(41, 27, 136);
/* oklch */ color: oklch(33.0% 0.168 277.6);

Tailwind

colors: {
  custom: {
    50: '#725aac',
    500: '#291b88',
    950: '#000000',
  },
}

SCSS

$custom: #291b88;
$custom-light: #725aac;
$custom-dark: #000000;

JSON

{
  "hex": "#291b88",
  "rgb": {
    "r": 41,
    "g": 27,
    "b": 136
  },
  "hsl": {
    "h": 247.706,
    "s": 66.871,
    "l": 31.961
  },
  "oklch": {
    "l": 0.32966,
    "c": 0.16825,
    "h": 277.6
  },
  "luminance": 0.03033
}

Semantic roles & 50–950 ramp

primary

#291B88

secondary

#ACBB44

accent

#EA3ED4

background

#F7F5FA

surface

#EDE9F4

border

#C8C5CE

text

#090410

muted

#7B797F

Preview Lab

Preview with #291B88

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

Preview Lab → · Contrast checker → · Palette generator →