#291AB4#291AB4

#291AB4 is a dark, highly saturated blue. Relative luminance 0.045; OKLCH L 38.0% C 0.221 H 272.7°. Best body text is #FFFFFF at 11.05:1 contrast (WCAG AA passes).

Color values

HEX	#291AB4
RGB	rgb(41, 26, 180)
HSL	hsl(246, 75%, 40%)
HSV	hsv(246, 86%, 71%)
CMYK	cmyk(77.2%, 85.6%, 0%, 29.4%)
CIE-LAB	lab(25.27, 54.29, -76.18)
CIE-LCH	lch(25.27, 93.55, 305.48°)
OKLab	oklab(38.01% 0.0103 -0.2203)
OKLCH	oklch(38.01% 0.221 272.7)
XYZ	xyz(9.5193, 4.5045, 43.5389)
Luminance	0.0450 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#291AB4 #A5B41A

analogous

#1A58B4 #291AB4 #761AB4

triadic

#291AB4 #B4291A #1AB429

tetradic

#291AB4 #B41A58 #A5B41A #1AB476

square

#291AB4 #B41A58 #A5B41A #1AB476

split-complementary

#291AB4 #B4761A #58B41A

monochromatic

#110B49 #1D127F #291AB4 #3D2BE0 #6E60E8

Accessibility & contrast

On white

11.05

#291AB4 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.90

#291AB4 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #291AB4

11.05:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##291AB4	#FFFFFF	#000000	##FFFFFF
##291AB4	1.00	11.05	1.90	11.05
#FFFFFF	11.05	1.00	21.00	1.00
#000000	1.90	21.00	1.00	21.00
##FFFFFF	11.05	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0043B8

Deuteranopia (green-blind)

#0034B1

Tritanopia (blue-blind)

#004E6B

Achromatopsia (no color)

#3C3C3C

Design tokens & code

CSS

--color: #291ab4;
/* rgb */ color: rgb(41, 26, 180);
/* oklch */ color: oklch(38.0% 0.221 272.7);

Tailwind

colors: {
  custom: {
    50: '#7c5dcc',
    500: '#291ab4',
    950: '#000000',
  },
}

SCSS

$custom: #291ab4;
$custom-light: #7c5dcc;
$custom-dark: #000000;

JSON

{
  "hex": "#291ab4",
  "rgb": {
    "r": 41,
    "g": 26,
    "b": 180
  },
  "hsl": {
    "h": 245.844,
    "s": 74.757,
    "l": 40.392
  },
  "oklch": {
    "l": 0.38013,
    "c": 0.22055,
    "h": 272.7
  },
  "luminance": 0.04505
}

Semantic roles & 50–950 ramp

primary

#291AB4

secondary

#C2CC5D

accent

#F136DF

background

#F8F5FC

surface

#F0E9F9

border

#CBC5D2

text

#0C0514

muted

#7D7982

Preview Lab

Preview with #291AB4

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

Preview Lab → · Contrast checker → · Palette generator →