#291B99#291B99

#291B99 is a dark, vivid blue. Relative luminance 0.036; OKLCH L 34.9% C 0.189 H 275.3°. Best body text is #FFFFFF at 12.27:1 contrast (WCAG AA passes).

Color values

HEX	#291B99
RGB	rgb(41, 27, 153)
HSL	hsl(247, 70%, 35%)
HSV	hsv(247, 82%, 60%)
CMYK	cmyk(73.2%, 82.4%, 0%, 40%)
CIE-LAB	lab(22.14, 45.73, -65.02)
CIE-LCH	lch(22.14, 79.49, 305.12°)
OKLab	oklab(34.91% 0.0176 -0.188)
OKLCH	oklch(34.91% 0.189 275.3)
XYZ	xyz(7.0543, 3.5545, 30.4451)
Luminance	0.0355 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#291B99 #8B991B

analogous

#1B4C99 #291B99 #681B99

triadic

#291B99 #99291B #1B9929

tetradic

#291B99 #991B4C #8B991B #1B9968

square

#291B99 #991B4C #8B991B #1B9968

split-complementary

#291B99 #99681B #4C991B

monochromatic

#0D0931 #1B1265 #291B99 #3724CD #5F4FE0

Accessibility & contrast

On white

12.27

#291B99 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.71

#291B99 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #291B99

12.27:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##291B99	#FFFFFF	#000000	##FFFFFF
##291B99	1.00	12.27	1.71	12.27
#FFFFFF	12.27	1.00	21.00	1.00
#000000	1.71	21.00	1.00	21.00
##FFFFFF	12.27	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003A9C

Deuteranopia (green-blind)

#002F97

Tritanopia (blue-blind)

#00435B

Achromatopsia (no color)

#353535

Design tokens & code

CSS

--color: #291b99;
/* rgb */ color: rgb(41, 27, 153);
/* oklch */ color: oklch(34.9% 0.189 275.3);

Tailwind

colors: {
  custom: {
    50: '#765cb8',
    500: '#291b99',
    950: '#000000',
  },
}

SCSS

$custom: #291b99;
$custom-light: #765cb8;
$custom-dark: #000000;

JSON

{
  "hex": "#291b99",
  "rgb": {
    "r": 41,
    "g": 27,
    "b": 153
  },
  "hsl": {
    "h": 246.667,
    "s": 70,
    "l": 35.294
  },
  "oklch": {
    "l": 0.34911,
    "c": 0.18881,
    "h": 275.3
  },
  "luminance": 0.03555
}

Semantic roles & 50–950 ramp

primary

#291B99

secondary

#B5C24E

accent

#ED3BD9

background

#F7F5FB

surface

#EEE9F6

border

#C9C5D0

text

#0A0412

muted

#7C7981

Preview Lab

Preview with #291B99

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

Preview Lab → · Contrast checker → · Palette generator →