#291B71#291B71

#291B71 is a dark, vivid blue. Relative luminance 0.024; OKLCH L 30.5% C 0.139 H 281.7°. Best body text is #FFFFFF at 14.10:1 contrast (WCAG AA passes).

Color values

HEX	#291B71
RGB	rgb(41, 27, 113)
HSL	hsl(250, 61%, 27%)
HSV	hsv(250, 76%, 44%)
CMYK	cmyk(63.7%, 76.1%, 0%, 55.7%)
CIE-LAB	lab(17.68, 32.80, -47.18)
CIE-LCH	lch(17.68, 57.46, 304.81°)
OKLab	oklab(30.46% 0.0282 -0.136)
OKLCH	oklch(30.46% 0.139 281.7)
XYZ	xyz(4.2861, 2.4472, 15.8661)
Luminance	0.0245 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#291B71 #63711B

analogous

#1B3871 #291B71 #541B71

triadic

#291B71 #71291B #1B7129

tetradic

#291B71 #711B38 #63711B #1B7154

square

#291B71 #711B38 #63711B #1B7154

split-complementary

#291B71 #71541B #38711B

monochromatic

#090619 #170F40 #291B71 #3B27A2 #5037CF

Accessibility & contrast

On white

14.10

#291B71 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.49

#291B71 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #291B71

14.10:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##291B71	#FFFFFF	#000000	##FFFFFF
##291B71	1.00	14.10	1.49	14.10
#FFFFFF	14.10	1.00	21.00	1.00
#000000	1.49	21.00	1.00	21.00
##FFFFFF	14.10	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#002E74

Deuteranopia (green-blind)

#00286F

Tritanopia (blue-blind)

#003344

Achromatopsia (no color)

#2B2B2B

Design tokens & code

CSS

--color: #291b71;
/* rgb */ color: rgb(41, 27, 113);
/* oklch */ color: oklch(30.5% 0.139 281.7);

Tailwind

colors: {
  custom: {
    50: '#6d599b',
    500: '#291b71',
    950: '#000000',
  },
}

SCSS

$custom: #291b71;
$custom-light: #6d599b;
$custom-dark: #000000;

JSON

{
  "hex": "#291b71",
  "rgb": {
    "r": 41,
    "g": 27,
    "b": 113
  },
  "hsl": {
    "h": 249.767,
    "s": 61.429,
    "l": 27.451
  },
  "oklch": {
    "l": 0.30465,
    "c": 0.13892,
    "h": 281.7
  },
  "luminance": 0.02448
}

Semantic roles & 50–950 ramp

primary

#291B71

secondary

#96A642

accent

#E543CA

background

#F6F5F9

surface

#ECE9F2

border

#C7C5CC

text

#08030E

muted

#7A787E

Preview Lab

Preview with #291B71

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

Preview Lab → · Contrast checker → · Palette generator →