#291B9B#291B9B

#291B9B is a dark, vivid blue. Relative luminance 0.036; OKLCH L 35.1% C 0.191 H 275.1°. Best body text is #FFFFFF at 12.18:1 contrast (WCAG AA passes).

Color values

HEX	#291B9B
RGB	rgb(41, 27, 155)
HSL	hsl(247, 70%, 36%)
HSV	hsv(247, 83%, 61%)
CMYK	cmyk(73.5%, 82.6%, 0%, 39.2%)
CIE-LAB	lab(22.38, 46.35, -65.86)
CIE-LCH	lch(22.38, 80.53, 305.13°)
OKLab	oklab(35.14% 0.017 -0.1904)
OKLCH	oklch(35.14% 0.191 275.1)
XYZ	xyz(7.2208, 3.6211, 31.3224)
Luminance	0.0362 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#291B9B #8D9B1B

analogous

#1B4D9B #291B9B #691B9B

triadic

#291B9B #9B291B #1B9B29

tetradic

#291B9B #9B1B4D #8D9B1B #1B9B69

square

#291B9B #9B1B4D #8D9B1B #1B9B69

split-complementary

#291B9B #9B691B #4D9B1B

monochromatic

#0D0933 #1B1267 #291B9B #3724CF #6050E0

Accessibility & contrast

On white

12.18

#291B9B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.72

#291B9B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #291B9B

12.18:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##291B9B	#FFFFFF	#000000	##FFFFFF
##291B9B	1.00	12.18	1.72	12.18
#FFFFFF	12.18	1.00	21.00	1.00
#000000	1.72	21.00	1.00	21.00
##FFFFFF	12.18	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003B9E

Deuteranopia (green-blind)

#003099

Tritanopia (blue-blind)

#00435C

Achromatopsia (no color)

#353535

Design tokens & code

CSS

--color: #291b9b;
/* rgb */ color: rgb(41, 27, 155);
/* oklch */ color: oklch(35.1% 0.191 275.1);

Tailwind

colors: {
  custom: {
    50: '#765cba',
    500: '#291b9b',
    950: '#000000',
  },
}

SCSS

$custom: #291b9b;
$custom-light: #765cba;
$custom-dark: #000000;

JSON

{
  "hex": "#291b9b",
  "rgb": {
    "r": 41,
    "g": 27,
    "b": 155
  },
  "hsl": {
    "h": 246.563,
    "s": 70.33,
    "l": 35.686
  },
  "oklch": {
    "l": 0.35144,
    "c": 0.19118,
    "h": 275.1
  },
  "luminance": 0.03622
}

Semantic roles & 50–950 ramp

primary

#291B9B

secondary

#B6C34F

accent

#ED3BDA

background

#F7F5FB

surface

#EEE9F6

border

#C9C5D0

text

#0A0412

muted

#7C7981

Preview Lab

Preview with #291B9B

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

Preview Lab → · Contrast checker → · Palette generator →