#291CB3#291CB3

#291CB3 is a dark, highly saturated blue. Relative luminance 0.046; OKLCH L 38.1% C 0.218 H 272.7°. Best body text is #FFFFFF at 10.99:1 contrast (WCAG AA passes).

Color values

HEX	#291CB3
RGB	rgb(41, 28, 179)
HSL	hsl(245, 73%, 41%)
HSV	hsv(245, 84%, 70%)
CMYK	cmyk(77.1%, 84.4%, 0%, 29.8%)
CIE-LAB	lab(25.43, 53.17, -75.33)
CIE-LCH	lch(25.43, 92.20, 305.22°)
OKLab	oklab(38.08% 0.0101 -0.2179)
OKLCH	oklch(38.08% 0.218 272.7)
XYZ	xyz(9.4637, 4.5556, 43.0196)
Luminance	0.0456 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#291CB3 #A6B31C

analogous

#1C5AB3 #291CB3 #751CB3

triadic

#291CB3 #B3291C #1CB329

tetradic

#291CB3 #B31C5A #A6B31C #1CB375

square

#291CB3 #B31C5A #A6B31C #1CB375

split-complementary

#291CB3 #B3751C #5AB31C

monochromatic

#110B49 #1D147E #291CB3 #3D2EDE #6E63E7

Accessibility & contrast

On white

10.99

#291CB3 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.91

#291CB3 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #291CB3

10.99:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##291CB3	#FFFFFF	#000000	##FFFFFF
##291CB3	1.00	10.99	1.91	10.99
#FFFFFF	10.99	1.00	21.00	1.00
#000000	1.91	21.00	1.00	21.00
##FFFFFF	10.99	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0043B7

Deuteranopia (green-blind)

#0035B1

Tritanopia (blue-blind)

#004E6A

Achromatopsia (no color)

#3C3C3C

Design tokens & code

CSS

--color: #291cb3;
/* rgb */ color: rgb(41, 28, 179);
/* oklch */ color: oklch(38.1% 0.218 272.7);

Tailwind

colors: {
  custom: {
    50: '#7c5ecb',
    500: '#291cb3',
    950: '#000000',
  },
}

SCSS

$custom: #291cb3;
$custom-light: #7c5ecb;
$custom-dark: #000000;

JSON

{
  "hex": "#291cb3",
  "rgb": {
    "r": 41,
    "g": 28,
    "b": 179
  },
  "hsl": {
    "h": 245.166,
    "s": 72.947,
    "l": 40.588
  },
  "oklch": {
    "l": 0.38084,
    "c": 0.21811,
    "h": 272.7
  },
  "luminance": 0.04557
}

Semantic roles & 50–950 ramp

primary

#291CB3

secondary

#C2CB5F

accent

#F038E0

background

#F8F5FC

surface

#F0E9F9

border

#CBC5D2

text

#0C0514

muted

#7D7982

Preview Lab

Preview with #291CB3

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

Preview Lab → · Contrast checker → · Palette generator →