#291B8B#291B8B

#291B8B is a dark, vivid blue. Relative luminance 0.031; OKLCH L 33.3% C 0.172 H 277.2°. Best body text is #FFFFFF at 12.93:1 contrast (WCAG AA passes).

Color values

HEX	#291B8B
RGB	rgb(41, 27, 139)
HSL	hsl(248, 67%, 33%)
HSV	hsv(248, 81%, 55%)
CMYK	cmyk(70.5%, 80.6%, 0%, 45.5%)
CIE-LAB	lab(20.51, 41.31, -59.04)
CIE-LCH	lch(20.51, 72.06, 304.98°)
OKLab	oklab(33.31% 0.0215 -0.1706)
OKLCH	oklch(33.31% 0.172 277.2)
XYZ	xyz(5.9651, 3.1188, 24.7087)
Luminance	0.0312 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#291B8B #7D8B1B

analogous

#1B458B #291B8B #611B8B

triadic

#291B8B #8B291B #1B8B29

tetradic

#291B8B #8B1B45 #7D8B1B #1B8B61

square

#291B8B #8B1B45 #7D8B1B #1B8B61

split-complementary

#291B8B #8B611B #458B1B

monochromatic

#0B0725 #1A1158 #291B8B #3825BE #5845DB

Accessibility & contrast

On white

12.93

#291B8B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.62

#291B8B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #291B8B

12.93:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##291B8B	#FFFFFF	#000000	##FFFFFF
##291B8B	1.00	12.93	1.62	12.93
#FFFFFF	12.93	1.00	21.00	1.00
#000000	1.62	21.00	1.00	21.00
##FFFFFF	12.93	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00368E

Deuteranopia (green-blind)

#002D89

Tritanopia (blue-blind)

#003D53

Achromatopsia (no color)

#313131

Design tokens & code

CSS

--color: #291b8b;
/* rgb */ color: rgb(41, 27, 139);
/* oklch */ color: oklch(33.3% 0.172 277.2);

Tailwind

colors: {
  custom: {
    50: '#735bae',
    500: '#291b8b',
    950: '#000000',
  },
}

SCSS

$custom: #291b8b;
$custom-light: #735bae;
$custom-dark: #000000;

JSON

{
  "hex": "#291b8b",
  "rgb": {
    "r": 41,
    "g": 27,
    "b": 139
  },
  "hsl": {
    "h": 247.5,
    "s": 67.47,
    "l": 32.549
  },
  "oklch": {
    "l": 0.33305,
    "c": 0.17195,
    "h": 277.2
  },
  "luminance": 0.03119
}

Semantic roles & 50–950 ramp

primary

#291B8B

secondary

#AEBC45

accent

#EA3DD5

background

#F7F5FA

surface

#EDE9F5

border

#C8C5CF

text

#090410

muted

#7B797F

Preview Lab

Preview with #291B8B

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

Preview Lab → · Contrast checker → · Palette generator →