#291B8C#291B8C

#291B8C is a dark, vivid blue. Relative luminance 0.031; OKLCH L 33.4% C 0.173 H 277.0°. Best body text is #FFFFFF at 12.89:1 contrast (WCAG AA passes).

Color values

HEX	#291B8C
RGB	rgb(41, 27, 140)
HSL	hsl(247, 68%, 33%)
HSV	hsv(247, 81%, 55%)
CMYK	cmyk(70.7%, 80.7%, 0%, 45.1%)
CIE-LAB	lab(20.63, 41.63, -59.47)
CIE-LCH	lch(20.63, 72.60, 304.99°)
OKLab	oklab(33.42% 0.0212 -0.1719)
OKLCH	oklch(33.42% 0.173 277)
XYZ	xyz(6.0385, 3.1482, 25.0953)
Luminance	0.0315 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#291B8C #7E8C1B

analogous

#1B458C #291B8C #621B8C

triadic

#291B8C #8C291B #1B8C29

tetradic

#291B8C #8C1B45 #7E8C1B #1B8C62

square

#291B8C #8C1B45 #7E8C1B #1B8C62

split-complementary

#291B8C #8C621B #458C1B

monochromatic

#0B0725 #1A1159 #291B8C #3825BF #5946DB

Accessibility & contrast

On white

12.89

#291B8C on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.63

#291B8C on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #291B8C

12.89:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##291B8C	#FFFFFF	#000000	##FFFFFF
##291B8C	1.00	12.89	1.63	12.89
#FFFFFF	12.89	1.00	21.00	1.00
#000000	1.63	21.00	1.00	21.00
##FFFFFF	12.89	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00368F

Deuteranopia (green-blind)

#002D8A

Tritanopia (blue-blind)

#003D53

Achromatopsia (no color)

#323232

Design tokens & code

CSS

--color: #291b8c;
/* rgb */ color: rgb(41, 27, 140);
/* oklch */ color: oklch(33.4% 0.173 277.0);

Tailwind

colors: {
  custom: {
    50: '#735baf',
    500: '#291b8c',
    950: '#000000',
  },
}

SCSS

$custom: #291b8c;
$custom-light: #735baf;
$custom-dark: #000000;

JSON

{
  "hex": "#291b8c",
  "rgb": {
    "r": 41,
    "g": 27,
    "b": 140
  },
  "hsl": {
    "h": 247.434,
    "s": 67.665,
    "l": 32.745
  },
  "oklch": {
    "l": 0.33418,
    "c": 0.17317,
    "h": 277
  },
  "luminance": 0.03149
}

Semantic roles & 50–950 ramp

primary

#291B8C

secondary

#AEBD46

accent

#EB3DD5

background

#F7F5FA

surface

#EEE9F5

border

#C9C5CF

text

#090410

muted

#7B797F

Preview Lab

Preview with #291B8C

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

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