#291AB3#291AB3

#291AB3 is a dark, highly saturated blue. Relative luminance 0.045; OKLCH L 37.9% C 0.219 H 272.8°. Best body text is #FFFFFF at 11.09:1 contrast (WCAG AA passes).

Color values

HEX	#291AB3
RGB	rgb(41, 26, 179)
HSL	hsl(246, 75%, 40%)
HSV	hsv(246, 85%, 70%)
CMYK	cmyk(77.1%, 85.5%, 0%, 29.8%)
CIE-LAB	lab(25.15, 54.00, -75.79)
CIE-LCH	lch(25.15, 93.06, 305.47°)
OKLab	oklab(37.89% 0.0106 -0.2192)
OKLCH	oklch(37.89% 0.219 272.8)
XYZ	xyz(9.4178, 4.4639, 43.0044)
Luminance	0.0447 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#291AB3 #A4B31A

analogous

#1A58B3 #291AB3 #751AB3

triadic

#291AB3 #B3291A #1AB329

tetradic

#291AB3 #B31A58 #A4B31A #1AB375

square

#291AB3 #B31A58 #A4B31A #1AB375

split-complementary

#291AB3 #B3751A #58B31A

monochromatic

#110A48 #1D127E #291AB3 #3C2AE0 #6D60E8

Accessibility & contrast

On white

11.09

#291AB3 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.89

#291AB3 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #291AB3

11.09:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##291AB3	#FFFFFF	#000000	##FFFFFF
##291AB3	1.00	11.09	1.89	11.09
#FFFFFF	11.09	1.00	21.00	1.00
#000000	1.89	21.00	1.00	21.00
##FFFFFF	11.09	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: #291ab3;
/* rgb */ color: rgb(41, 26, 179);
/* oklch */ color: oklch(37.9% 0.219 272.8);

Tailwind

colors: {
  custom: {
    50: '#7c5dcb',
    500: '#291ab3',
    950: '#000000',
  },
}

SCSS

$custom: #291ab3;
$custom-light: #7c5dcb;
$custom-dark: #000000;

JSON

{
  "hex": "#291ab3",
  "rgb": {
    "r": 41,
    "g": 26,
    "b": 179
  },
  "hsl": {
    "h": 245.882,
    "s": 74.634,
    "l": 40.196
  },
  "oklch": {
    "l": 0.37892,
    "c": 0.21944,
    "h": 272.8
  },
  "luminance": 0.04465
}

Semantic roles & 50–950 ramp

primary

#291AB3

secondary

#C1CC5D

accent

#F137DF

background

#F8F5FC

surface

#F0E9F9

border

#CBC5D2

text

#0C0514

muted

#7D7982

Preview Lab

Preview with #291AB3

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

Preview Lab → · Contrast checker → · Palette generator →