#291B83#291B83

#291B83 is a dark, vivid blue. Relative luminance 0.029; OKLCH L 32.4% C 0.162 H 278.4°. Best body text is #FFFFFF at 13.30:1 contrast (WCAG AA passes).

Color values

HEX	#291B83
RGB	rgb(41, 27, 131)
HSL	hsl(248, 66%, 31%)
HSV	hsv(248, 79%, 51%)
CMYK	cmyk(68.7%, 79.4%, 0%, 48.6%)
CIE-LAB	lab(19.61, 38.74, -55.50)
CIE-LCH	lch(19.61, 67.68, 304.91°)
OKLab	oklab(32.41% 0.0237 -0.1603)
OKLCH	oklch(32.41% 0.162 278.4)
XYZ	xyz(5.4018, 2.8935, 21.7422)
Luminance	0.0289 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#291B83 #75831B

analogous

#1B4183 #291B83 #5D1B83

triadic

#291B83 #83291B #1B8329

tetradic

#291B83 #831B41 #75831B #1B835D

square

#291B83 #831B41 #75831B #1B835D

split-complementary

#291B83 #835D1B #41831B

monochromatic

#09061E #191150 #291B83 #3925B6 #5541D8

Accessibility & contrast

On white

13.30

#291B83 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.58

#291B83 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #291B83

13.30:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##291B83	#FFFFFF	#000000	##FFFFFF
##291B83	1.00	13.30	1.58	13.30
#FFFFFF	13.30	1.00	21.00	1.00
#000000	1.58	21.00	1.00	21.00
##FFFFFF	13.30	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003386

Deuteranopia (green-blind)

#002B81

Tritanopia (blue-blind)

#003A4E

Achromatopsia (no color)

#2F2F2F

Design tokens & code

CSS

--color: #291b83;
/* rgb */ color: rgb(41, 27, 131);
/* oklch */ color: oklch(32.4% 0.162 278.4);

Tailwind

colors: {
  custom: {
    50: '#715aa8',
    500: '#291b83',
    950: '#000000',
  },
}

SCSS

$custom: #291b83;
$custom-light: #715aa8;
$custom-dark: #000000;

JSON

{
  "hex": "#291b83",
  "rgb": {
    "r": 41,
    "g": 27,
    "b": 131
  },
  "hsl": {
    "h": 248.077,
    "s": 65.823,
    "l": 30.98
  },
  "oklch": {
    "l": 0.32408,
    "c": 0.16204,
    "h": 278.4
  },
  "luminance": 0.02894
}

Semantic roles & 50–950 ramp

primary

#291B83

secondary

#A7B643

accent

#E93FD2

background

#F7F5FA

surface

#EDE9F4

border

#C8C5CE

text

#090410

muted

#7B797F

Preview Lab

Preview with #291B83

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

Preview Lab → · Contrast checker → · Palette generator →