#291CB4#291CB4

#291CB4 is a dark, highly saturated blue. Relative luminance 0.046; OKLCH L 38.2% C 0.219 H 272.6°. Best body text is #FFFFFF at 10.94:1 contrast (WCAG AA passes).

Color values

HEX	#291CB4
RGB	rgb(41, 28, 180)
HSL	hsl(245, 73%, 41%)
HSV	hsv(245, 84%, 71%)
CMYK	cmyk(77.2%, 84.4%, 0%, 29.4%)
CIE-LAB	lab(25.55, 53.47, -75.72)
CIE-LCH	lch(25.55, 92.70, 305.23°)
OKLab	oklab(38.2% 0.0099 -0.219)
OKLCH	oklch(38.2% 0.219 272.6)
XYZ	xyz(9.5652, 4.5962, 43.5542)
Luminance	0.0460 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#291CB4 #A7B41C

analogous

#1C5BB4 #291CB4 #751CB4

triadic

#291CB4 #B4291C #1CB429

tetradic

#291CB4 #B41C5B #A7B41C #1CB475

square

#291CB4 #B41C5B #A7B41C #1CB475

split-complementary

#291CB4 #B4751C #5BB41C

monochromatic

#110C4A #1D147F #291CB4 #3E2FDF #6F64E7

Accessibility & contrast

On white

10.94

#291CB4 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.92

#291CB4 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #291CB4

10.94:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##291CB4	#FFFFFF	#000000	##FFFFFF
##291CB4	1.00	10.94	1.92	10.94
#FFFFFF	10.94	1.00	21.00	1.00
#000000	1.92	21.00	1.00	21.00
##FFFFFF	10.94	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0043B8

Deuteranopia (green-blind)

#0035B2

Tritanopia (blue-blind)

#004E6B

Achromatopsia (no color)

#3D3D3D

Design tokens & code

CSS

--color: #291cb4;
/* rgb */ color: rgb(41, 28, 180);
/* oklch */ color: oklch(38.2% 0.219 272.6);

Tailwind

colors: {
  custom: {
    50: '#7c5ecc',
    500: '#291cb4',
    950: '#000000',
  },
}

SCSS

$custom: #291cb4;
$custom-light: #7c5ecc;
$custom-dark: #000000;

JSON

{
  "hex": "#291cb4",
  "rgb": {
    "r": 41,
    "g": 28,
    "b": 180
  },
  "hsl": {
    "h": 245.132,
    "s": 73.077,
    "l": 40.784
  },
  "oklch": {
    "l": 0.38204,
    "c": 0.21923,
    "h": 272.6
  },
  "luminance": 0.04597
}

Semantic roles & 50–950 ramp

primary

#291CB4

secondary

#C2CC60

accent

#F038E0

background

#F8F5FC

surface

#F0E9F9

border

#CBC5D2

text

#0C0514

muted

#7D7982

Preview Lab

Preview with #291CB4

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

Preview Lab → · Contrast checker → · Palette generator →