#291B80#291B80

#291B80 is a dark, vivid blue. Relative luminance 0.028; OKLCH L 32.1% C 0.158 H 278.9°. Best body text is #FFFFFF at 13.44:1 contrast (WCAG AA passes).

Color values

HEX	#291B80
RGB	rgb(41, 27, 128)
HSL	hsl(248, 65%, 30%)
HSV	hsv(248, 79%, 50%)
CMYK	cmyk(68%, 78.9%, 0%, 49.8%)
CIE-LAB	lab(19.28, 37.76, -54.15)
CIE-LCH	lch(19.28, 66.01, 304.89°)
OKLab	oklab(32.08% 0.0245 -0.1564)
OKLCH	oklch(32.08% 0.158 278.9)
XYZ	xyz(5.2014, 2.8134, 20.6868)
Luminance	0.0281 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#291B80 #72801B

analogous

#1B3F80 #291B80 #5B1B80

triadic

#291B80 #80291B #1B8029

tetradic

#291B80 #801B3F #72801B #1B805B

square

#291B80 #801B3F #72801B #1B805B

split-complementary

#291B80 #805B1B #3F801B

monochromatic

#09061B #19104D #291B80 #3926B3 #543FD6

Accessibility & contrast

On white

13.44

#291B80 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.56

#291B80 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #291B80

13.44:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##291B80	#FFFFFF	#000000	##FFFFFF
##291B80	1.00	13.44	1.56	13.44
#FFFFFF	13.44	1.00	21.00	1.00
#000000	1.56	21.00	1.00	21.00
##FFFFFF	13.44	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003383

Deuteranopia (green-blind)

#002B7E

Tritanopia (blue-blind)

#00394D

Achromatopsia (no color)

#2F2F2F

Design tokens & code

CSS

--color: #291b80;
/* rgb */ color: rgb(41, 27, 128);
/* oklch */ color: oklch(32.1% 0.158 278.9);

Tailwind

colors: {
  custom: {
    50: '#705aa6',
    500: '#291b80',
    950: '#000000',
  },
}

SCSS

$custom: #291b80;
$custom-light: #705aa6;
$custom-dark: #000000;

JSON

{
  "hex": "#291b80",
  "rgb": {
    "r": 41,
    "g": 27,
    "b": 128
  },
  "hsl": {
    "h": 248.317,
    "s": 65.161,
    "l": 30.392
  },
  "oklch": {
    "l": 0.32077,
    "c": 0.15827,
    "h": 278.9
  },
  "luminance": 0.02814
}

Semantic roles & 50–950 ramp

primary

#291B80

secondary

#A4B443

accent

#E840D1

background

#F7F5FA

surface

#EDE9F4

border

#C8C5CE

text

#09040F

muted

#7B797F

Preview Lab

Preview with #291B80

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

Preview Lab → · Contrast checker → · Palette generator →