#291B75#291B75

#291B75 is a dark, vivid blue. Relative luminance 0.025; OKLCH L 30.9% C 0.144 H 280.9°. Best body text is #FFFFFF at 13.93:1 contrast (WCAG AA passes).

Color values

HEX	#291B75
RGB	rgb(41, 27, 117)
HSL	hsl(249, 63%, 28%)
HSV	hsv(249, 77%, 46%)
CMYK	cmyk(65%, 76.9%, 0%, 54.1%)
CIE-LAB	lab(18.10, 34.14, -49.07)
CIE-LCH	lch(18.10, 59.78, 304.82°)
OKLab	oklab(30.89% 0.0273 -0.1416)
OKLCH	oklch(30.89% 0.144 280.9)
XYZ	xyz(4.5163, 2.5393, 17.0783)
Luminance	0.0254 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#291B75 #67751B

analogous

#1B3A75 #291B75 #561B75

triadic

#291B75 #75291B #1B7529

tetradic

#291B75 #751B3A #67751B #1B7556

square

#291B75 #751B3A #67751B #1B7556

split-complementary

#291B75 #75561B #3A751B

monochromatic

#090619 #181043 #291B75 #3A26A7 #5139D1

Accessibility & contrast

On white

13.93

#291B75 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.51

#291B75 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #291B75

13.93:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##291B75	#FFFFFF	#000000	##FFFFFF
##291B75	1.00	13.93	1.51	13.93
#FFFFFF	13.93	1.00	21.00	1.00
#000000	1.51	21.00	1.00	21.00
##FFFFFF	13.93	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#002F78

Deuteranopia (green-blind)

#002973

Tritanopia (blue-blind)

#003446

Achromatopsia (no color)

#2C2C2C

Design tokens & code

CSS

--color: #291b75;
/* rgb */ color: rgb(41, 27, 117);
/* oklch */ color: oklch(30.9% 0.144 280.9);

Tailwind

colors: {
  custom: {
    50: '#6e599e',
    500: '#291b75',
    950: '#000000',
  },
}

SCSS

$custom: #291b75;
$custom-light: #6e599e;
$custom-dark: #000000;

JSON

{
  "hex": "#291b75",
  "rgb": {
    "r": 41,
    "g": 27,
    "b": 117
  },
  "hsl": {
    "h": 249.333,
    "s": 62.5,
    "l": 28.235
  },
  "oklch": {
    "l": 0.30887,
    "c": 0.14416,
    "h": 280.9
  },
  "luminance": 0.0254
}

Semantic roles & 50–950 ramp

primary

#291B75

secondary

#99A942

accent

#E642CC

background

#F7F5F9

surface

#EDE9F2

border

#C8C5CC

text

#08040E

muted

#7B797E

Preview Lab

Preview with #291B75

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

Preview Lab → · Contrast checker → · Palette generator →