#291BB3#291BB3

#291BB3 is a dark, highly saturated blue. Relative luminance 0.045; OKLCH L 38.0% C 0.219 H 272.7°. Best body text is #FFFFFF at 11.04:1 contrast (WCAG AA passes).

Color values

HEX	#291BB3
RGB	rgb(41, 27, 179)
HSL	hsl(246, 74%, 40%)
HSV	hsv(246, 85%, 70%)
CMYK	cmyk(77.1%, 84.9%, 0%, 29.8%)
CIE-LAB	lab(25.29, 53.59, -75.56)
CIE-LCH	lch(25.29, 92.64, 305.35°)
OKLab	oklab(37.99% 0.0104 -0.2185)
OKLCH	oklch(37.99% 0.219 272.7)
XYZ	xyz(9.4403, 4.5089, 43.0119)
Luminance	0.0451 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#291BB3 #A5B31B

analogous

#1B59B3 #291BB3 #751BB3

triadic

#291BB3 #B3291B #1BB329

tetradic

#291BB3 #B31B59 #A5B31B #1BB375

square

#291BB3 #B31B59 #A5B31B #1BB375

split-complementary

#291BB3 #B3751B #59B31B

monochromatic

#110B49 #1D137E #291BB3 #3D2CDF #6E61E7

Accessibility & contrast

On white

11.04

#291BB3 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.90

#291BB3 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #291BB3

11.04:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##291BB3	#FFFFFF	#000000	##FFFFFF
##291BB3	1.00	11.04	1.90	11.04
#FFFFFF	11.04	1.00	21.00	1.00
#000000	1.90	21.00	1.00	21.00
##FFFFFF	11.04	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0043B7

Deuteranopia (green-blind)

#0034B1

Tritanopia (blue-blind)

#004D6A

Achromatopsia (no color)

#3C3C3C

Design tokens & code

CSS

--color: #291bb3;
/* rgb */ color: rgb(41, 27, 179);
/* oklch */ color: oklch(38.0% 0.219 272.7);

Tailwind

colors: {
  custom: {
    50: '#7c5ecb',
    500: '#291bb3',
    950: '#000000',
  },
}

SCSS

$custom: #291bb3;
$custom-light: #7c5ecb;
$custom-dark: #000000;

JSON

{
  "hex": "#291bb3",
  "rgb": {
    "r": 41,
    "g": 27,
    "b": 179
  },
  "hsl": {
    "h": 245.526,
    "s": 73.786,
    "l": 40.392
  },
  "oklch": {
    "l": 0.37987,
    "c": 0.21878,
    "h": 272.7
  },
  "luminance": 0.0451
}

Semantic roles & 50–950 ramp

primary

#291BB3

secondary

#C2CC5E

accent

#F037DF

background

#F8F5FC

surface

#F0E9F9

border

#CBC5D2

text

#0C0514

muted

#7D7982

Preview Lab

Preview with #291BB3

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

Preview Lab → · Contrast checker → · Palette generator →