#291B9E#291B9E

#291B9E is a dark, vivid blue. Relative luminance 0.037; OKLCH L 35.5% C 0.195 H 274.8°. Best body text is #FFFFFF at 12.04:1 contrast (WCAG AA passes).

Color values

HEX	#291B9E
RGB	rgb(41, 27, 158)
HSL	hsl(246, 71%, 36%)
HSV	hsv(246, 83%, 62%)
CMYK	cmyk(74.1%, 82.9%, 0%, 38%)
CIE-LAB	lab(22.73, 47.27, -67.10)
CIE-LCH	lch(22.73, 82.08, 305.16°)
OKLab	oklab(35.49% 0.0162 -0.194)
OKLCH	oklch(35.49% 0.195 274.8)
XYZ	xyz(7.4759, 3.7232, 32.6658)
Luminance	0.0372 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#291B9E #909E1B

analogous

#1B4F9E #291B9E #6B1B9E

triadic

#291B9E #9E291B #1B9E29

tetradic

#291B9E #9E1B4F #909E1B #1B9E6B

square

#291B9E #9E1B4F #909E1B #1B9E6B

split-complementary

#291B9E #9E6B1B #4F9E1B

monochromatic

#0E0935 #1B126A #291B9E #3724D2 #6152E1

Accessibility & contrast

On white

12.04

#291B9E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.74

#291B9E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #291B9E

12.04:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##291B9E	#FFFFFF	#000000	##FFFFFF
##291B9E	1.00	12.04	1.74	12.04
#FFFFFF	12.04	1.00	21.00	1.00
#000000	1.74	21.00	1.00	21.00
##FFFFFF	12.04	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003CA2

Deuteranopia (green-blind)

#00309C

Tritanopia (blue-blind)

#00455E

Achromatopsia (no color)

#363636

Design tokens & code

CSS

--color: #291b9e;
/* rgb */ color: rgb(41, 27, 158);
/* oklch */ color: oklch(35.5% 0.195 274.8);

Tailwind

colors: {
  custom: {
    50: '#775cbc',
    500: '#291b9e',
    950: '#000000',
  },
}

SCSS

$custom: #291b9e;
$custom-light: #775cbc;
$custom-dark: #000000;

JSON

{
  "hex": "#291b9e",
  "rgb": {
    "r": 41,
    "g": 27,
    "b": 158
  },
  "hsl": {
    "h": 246.412,
    "s": 70.811,
    "l": 36.275
  },
  "oklch": {
    "l": 0.35495,
    "c": 0.1947,
    "h": 274.8
  },
  "luminance": 0.03724
}

Semantic roles & 50–950 ramp

primary

#291B9E

secondary

#B8C451

accent

#EE3ADA

background

#F8F5FB

surface

#EFE9F7

border

#CAC5D0

text

#0A0412

muted

#7C7981

Preview Lab

Preview with #291B9E

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

Preview Lab → · Contrast checker → · Palette generator →