#291DB3#291DB3

#291DB3 is a dark, highly saturated blue. Relative luminance 0.046; OKLCH L 38.2% C 0.217 H 272.6°. Best body text is #FFFFFF at 10.93:1 contrast (WCAG AA passes).

Color values

HEX	#291DB3
RGB	rgb(41, 29, 179)
HSL	hsl(245, 72%, 41%)
HSV	hsv(245, 84%, 70%)
CMYK	cmyk(77.1%, 83.8%, 0%, 29.8%)
CIE-LAB	lab(25.57, 52.74, -75.09)
CIE-LCH	lch(25.57, 91.76, 305.08°)
OKLab	oklab(38.18% 0.0099 -0.2172)
OKLCH	oklch(38.18% 0.217 272.6)
XYZ	xyz(9.4878, 4.6038, 43.0277)
Luminance	0.0461 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#291DB3 #A7B31D

analogous

#1D5CB3 #291DB3 #741DB3

triadic

#291DB3 #B3291D #1DB329

tetradic

#291DB3 #B31D5C #A7B31D #1DB374

square

#291DB3 #B31D5C #A7B31D #1DB374

split-complementary

#291DB3 #B3741D #5CB31D

monochromatic

#110C4A #1D147E #291DB3 #3E30DD #6F64E6

Accessibility & contrast

On white

10.93

#291DB3 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.92

#291DB3 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #291DB3

10.93:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##291DB3	#FFFFFF	#000000	##FFFFFF
##291DB3	1.00	10.93	1.92	10.93
#FFFFFF	10.93	1.00	21.00	1.00
#000000	1.92	21.00	1.00	21.00
##FFFFFF	10.93	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0043B7

Deuteranopia (green-blind)

#0035B1

Tritanopia (blue-blind)

#004E6B

Achromatopsia (no color)

#3D3D3D

Design tokens & code

CSS

--color: #291db3;
/* rgb */ color: rgb(41, 29, 179);
/* oklch */ color: oklch(38.2% 0.217 272.6);

Tailwind

colors: {
  custom: {
    50: '#7c5fcb',
    500: '#291db3',
    950: '#000000',
  },
}

SCSS

$custom: #291db3;
$custom-light: #7c5fcb;
$custom-dark: #000000;

JSON

{
  "hex": "#291db3",
  "rgb": {
    "r": 41,
    "g": 29,
    "b": 179
  },
  "hsl": {
    "h": 244.8,
    "s": 72.115,
    "l": 40.784
  },
  "oklch": {
    "l": 0.38184,
    "c": 0.21742,
    "h": 272.6
  },
  "luminance": 0.04605
}

Semantic roles & 50–950 ramp

primary

#291DB3

secondary

#C2CB61

accent

#EF39E0

background

#F8F5FC

surface

#F0E9F9

border

#CBC5D2

text

#0C0514

muted

#7D7982

Preview Lab

Preview with #291DB3

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

Preview Lab → · Contrast checker → · Palette generator →