#291B72#291B72

#291B72 is a dark, vivid blue. Relative luminance 0.025; OKLCH L 30.6% C 0.140 H 281.5°. Best body text is #FFFFFF at 14.06:1 contrast (WCAG AA passes).

Color values

HEX	#291B72
RGB	rgb(41, 27, 114)
HSL	hsl(250, 62%, 28%)
HSV	hsv(250, 76%, 45%)
CMYK	cmyk(64%, 76.3%, 0%, 55.3%)
CIE-LAB	lab(17.78, 33.14, -47.66)
CIE-LCH	lch(17.78, 58.04, 304.81°)
OKLab	oklab(30.57% 0.028 -0.1374)
OKLCH	oklch(30.57% 0.14 281.5)
XYZ	xyz(4.3427, 2.4699, 16.1642)
Luminance	0.0247 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#291B72 #64721B

analogous

#1B3972 #291B72 #541B72

triadic

#291B72 #72291B #1B7229

tetradic

#291B72 #721B39 #64721B #1B7254

square

#291B72 #721B39 #64721B #1B7254

split-complementary

#291B72 #72541B #39721B

monochromatic

#090619 #170F41 #291B72 #3B27A3 #5038D0

Accessibility & contrast

On white

14.06

#291B72 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.49

#291B72 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #291B72

14.06:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##291B72	#FFFFFF	#000000	##FFFFFF
##291B72	1.00	14.06	1.49	14.06
#FFFFFF	14.06	1.00	21.00	1.00
#000000	1.49	21.00	1.00	21.00
##FFFFFF	14.06	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#002E75

Deuteranopia (green-blind)

#002870

Tritanopia (blue-blind)

#003345

Achromatopsia (no color)

#2C2C2C

Design tokens & code

CSS

--color: #291b72;
/* rgb */ color: rgb(41, 27, 114);
/* oklch */ color: oklch(30.6% 0.140 281.5);

Tailwind

colors: {
  custom: {
    50: '#6d599b',
    500: '#291b72',
    950: '#000000',
  },
}

SCSS

$custom: #291b72;
$custom-light: #6d599b;
$custom-dark: #000000;

JSON

{
  "hex": "#291b72",
  "rgb": {
    "r": 41,
    "g": 27,
    "b": 114
  },
  "hsl": {
    "h": 249.655,
    "s": 61.702,
    "l": 27.647
  },
  "oklch": {
    "l": 0.3057,
    "c": 0.14024,
    "h": 281.5
  },
  "luminance": 0.0247
}

Semantic roles & 50–950 ramp

primary

#291B72

secondary

#96A742

accent

#E543CB

background

#F6F5F9

surface

#ECE9F2

border

#C7C5CC

text

#08030E

muted

#7A787E

Preview Lab

Preview with #291B72

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

Preview Lab → · Contrast checker → · Palette generator →