#291B87#291B87

#291B87 is a dark, vivid blue. Relative luminance 0.030; OKLCH L 32.9% C 0.167 H 277.8°. Best body text is #FFFFFF at 13.12:1 contrast (WCAG AA passes).

Color values

HEX	#291B87
RGB	rgb(41, 27, 135)
HSL	hsl(248, 67%, 32%)
HSV	hsv(248, 80%, 53%)
CMYK	cmyk(69.6%, 80%, 0%, 47.1%)
CIE-LAB	lab(20.06, 40.03, -57.28)
CIE-LCH	lch(20.06, 69.88, 304.95°)
OKLab	oklab(32.85% 0.0226 -0.1655)
OKLCH	oklch(32.85% 0.167 277.8)
XYZ	xyz(5.6781, 3.0041, 23.1976)
Luminance	0.0301 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#291B87 #79871B

analogous

#1B4387 #291B87 #5F1B87

triadic

#291B87 #87291B #1B8729

tetradic

#291B87 #871B43 #79871B #1B875F

square

#291B87 #871B43 #79871B #1B875F

split-complementary

#291B87 #875F1B #43871B

monochromatic

#0A0721 #1A1154 #291B87 #3825BA #5643D9

Accessibility & contrast

On white

13.12

#291B87 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.60

#291B87 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #291B87

13.12:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##291B87	#FFFFFF	#000000	##FFFFFF
##291B87	1.00	13.12	1.60	13.12
#FFFFFF	13.12	1.00	21.00	1.00
#000000	1.60	21.00	1.00	21.00
##FFFFFF	13.12	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00358A

Deuteranopia (green-blind)

#002C85

Tritanopia (blue-blind)

#003B51

Achromatopsia (no color)

#303030

Design tokens & code

CSS

--color: #291b87;
/* rgb */ color: rgb(41, 27, 135);
/* oklch */ color: oklch(32.9% 0.167 277.8);

Tailwind

colors: {
  custom: {
    50: '#725aab',
    500: '#291b87',
    950: '#000000',
  },
}

SCSS

$custom: #291b87;
$custom-light: #725aab;
$custom-dark: #000000;

JSON

{
  "hex": "#291b87",
  "rgb": {
    "r": 41,
    "g": 27,
    "b": 135
  },
  "hsl": {
    "h": 247.778,
    "s": 66.667,
    "l": 31.765
  },
  "oklch": {
    "l": 0.32854,
    "c": 0.16702,
    "h": 277.8
  },
  "luminance": 0.03005
}

Semantic roles & 50–950 ramp

primary

#291B87

secondary

#ABBA44

accent

#EA3ED3

background

#F7F5FA

surface

#EDE9F4

border

#C8C5CE

text

#090410

muted

#7B797F

Preview Lab

Preview with #291B87

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

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