#291CB0#291CB0

#291CB0 is a dark, highly saturated blue. Relative luminance 0.044; OKLCH L 37.7% C 0.215 H 272.9°. Best body text is #FFFFFF at 11.13:1 contrast (WCAG AA passes).

Color values

HEX	#291CB0
RGB	rgb(41, 28, 176)
HSL	hsl(245, 73%, 40%)
HSV	hsv(245, 84%, 69%)
CMYK	cmyk(76.7%, 84.1%, 0%, 31%)
CIE-LAB	lab(25.06, 52.28, -74.14)
CIE-LCH	lch(25.06, 90.72, 305.19°)
OKLab	oklab(37.73% 0.0109 -0.2144)
OKLCH	oklch(37.73% 0.215 272.9)
XYZ	xyz(9.1636, 4.4355, 41.4391)
Luminance	0.0444 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#291CB0 #A3B01C

analogous

#1C59B0 #291CB0 #731CB0

triadic

#291CB0 #B0291C #1CB029

tetradic

#291CB0 #B01C59 #A3B01C #1CB073

square

#291CB0 #B01C59 #A3B01C #1CB073

split-complementary

#291CB0 #B0731C #59B01C

monochromatic

#100B46 #1D147B #291CB0 #3B2CDD #6C61E6

Accessibility & contrast

On white

11.13

#291CB0 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.89

#291CB0 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #291CB0

11.13:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##291CB0	#FFFFFF	#000000	##FFFFFF
##291CB0	1.00	11.13	1.89	11.13
#FFFFFF	11.13	1.00	21.00	1.00
#000000	1.89	21.00	1.00	21.00
##FFFFFF	11.13	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0042B4

Deuteranopia (green-blind)

#0034AE

Tritanopia (blue-blind)

#004C69

Achromatopsia (no color)

#3B3B3B

Design tokens & code

CSS

--color: #291cb0;
/* rgb */ color: rgb(41, 28, 176);
/* oklch */ color: oklch(37.7% 0.215 272.9);

Tailwind

colors: {
  custom: {
    50: '#7b5ec9',
    500: '#291cb0',
    950: '#000000',
  },
}

SCSS

$custom: #291cb0;
$custom-light: #7b5ec9;
$custom-dark: #000000;

JSON

{
  "hex": "#291cb0",
  "rgb": {
    "r": 41,
    "g": 28,
    "b": 176
  },
  "hsl": {
    "h": 245.27,
    "s": 72.549,
    "l": 40
  },
  "oklch": {
    "l": 0.37727,
    "c": 0.21472,
    "h": 272.9
  },
  "luminance": 0.04437
}

Semantic roles & 50–950 ramp

primary

#291CB0

secondary

#C1CA5E

accent

#EF39DF

background

#F8F5FC

surface

#EFE9F9

border

#CAC5D2

text

#0B0513

muted

#7C7982

Preview Lab

Preview with #291CB0

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

Preview Lab → · Contrast checker → · Palette generator →