#291B74#291B74

#291B74 is a dark, vivid blue. Relative luminance 0.025; OKLCH L 30.8% C 0.143 H 281.1°. Best body text is #FFFFFF at 13.97:1 contrast (WCAG AA passes).

Color values

HEX	#291B74
RGB	rgb(41, 27, 116)
HSL	hsl(249, 62%, 28%)
HSV	hsv(249, 77%, 45%)
CMYK	cmyk(64.7%, 76.7%, 0%, 54.5%)
CIE-LAB	lab(17.99, 33.80, -48.60)
CIE-LCH	lch(17.99, 59.20, 304.82°)
OKLab	oklab(30.78% 0.0275 -0.1402)
OKLCH	oklch(30.78% 0.143 281.1)
XYZ	xyz(4.4578, 2.5159, 16.7703)
Luminance	0.0252 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#291B74 #66741B

analogous

#1B3974 #291B74 #551B74

triadic

#291B74 #74291B #1B7429

tetradic

#291B74 #741B39 #66741B #1B7455

square

#291B74 #741B39 #66741B #1B7455

split-complementary

#291B74 #74551B #39741B

monochromatic

#090619 #170F42 #291B74 #3B27A6 #5139D1

Accessibility & contrast

On white

13.97

#291B74 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.50

#291B74 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #291B74

13.97:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##291B74	#FFFFFF	#000000	##FFFFFF
##291B74	1.00	13.97	1.50	13.97
#FFFFFF	13.97	1.00	21.00	1.00
#000000	1.50	21.00	1.00	21.00
##FFFFFF	13.97	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#002F77

Deuteranopia (green-blind)

#002972

Tritanopia (blue-blind)

#003446

Achromatopsia (no color)

#2C2C2C

Design tokens & code

CSS

--color: #291b74;
/* rgb */ color: rgb(41, 27, 116);
/* oklch */ color: oklch(30.8% 0.143 281.1);

Tailwind

colors: {
  custom: {
    50: '#6d599d',
    500: '#291b74',
    950: '#000000',
  },
}

SCSS

$custom: #291b74;
$custom-light: #6d599d;
$custom-dark: #000000;

JSON

{
  "hex": "#291b74",
  "rgb": {
    "r": 41,
    "g": 27,
    "b": 116
  },
  "hsl": {
    "h": 249.438,
    "s": 62.238,
    "l": 28.039
  },
  "oklch": {
    "l": 0.30781,
    "c": 0.14287,
    "h": 281.1
  },
  "luminance": 0.02516
}

Semantic roles & 50–950 ramp

primary

#291B74

secondary

#98A942

accent

#E542CC

background

#F7F5F9

surface

#EDE9F2

border

#C8C5CC

text

#08040E

muted

#7B797E

Preview Lab

Preview with #291B74

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

Preview Lab → · Contrast checker → · Palette generator →