#291B77#291B77

#291B77 is a dark, vivid blue. Relative luminance 0.026; OKLCH L 31.1% C 0.147 H 280.5°. Best body text is #FFFFFF at 13.84:1 contrast (WCAG AA passes).

Color values

HEX	#291B77
RGB	rgb(41, 27, 119)
HSL	hsl(249, 63%, 29%)
HSV	hsv(249, 77%, 47%)
CMYK	cmyk(65.5%, 77.3%, 0%, 53.3%)
CIE-LAB	lab(18.31, 34.80, -50.01)
CIE-LCH	lch(18.31, 60.93, 304.83°)
OKLab	oklab(31.1% 0.0268 -0.1443)
OKLCH	oklch(31.1% 0.147 280.5)
XYZ	xyz(4.6351, 2.5868, 17.7042)
Luminance	0.0259 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#291B77 #69771B

analogous

#1B3B77 #291B77 #571B77

triadic

#291B77 #77291B #1B7729

tetradic

#291B77 #771B3B #69771B #1B7757

square

#291B77 #771B3B #69771B #1B7757

split-complementary

#291B77 #77571B #3B771B

monochromatic

#090619 #181045 #291B77 #3A26A9 #513AD2

Accessibility & contrast

On white

13.84

#291B77 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.52

#291B77 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #291B77

13.84:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##291B77	#FFFFFF	#000000	##FFFFFF
##291B77	1.00	13.84	1.52	13.84
#FFFFFF	13.84	1.00	21.00	1.00
#000000	1.52	21.00	1.00	21.00
##FFFFFF	13.84	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00307A

Deuteranopia (green-blind)

#002975

Tritanopia (blue-blind)

#003547

Achromatopsia (no color)

#2D2D2D

Design tokens & code

CSS

--color: #291b77;
/* rgb */ color: rgb(41, 27, 119);
/* oklch */ color: oklch(31.1% 0.147 280.5);

Tailwind

colors: {
  custom: {
    50: '#6e599f',
    500: '#291b77',
    950: '#000000',
  },
}

SCSS

$custom: #291b77;
$custom-light: #6e599f;
$custom-dark: #000000;

JSON

{
  "hex": "#291b77",
  "rgb": {
    "r": 41,
    "g": 27,
    "b": 119
  },
  "hsl": {
    "h": 249.13,
    "s": 63.014,
    "l": 28.627
  },
  "oklch": {
    "l": 0.311,
    "c": 0.14677,
    "h": 280.5
  },
  "luminance": 0.02587
}

Semantic roles & 50–950 ramp

primary

#291B77

secondary

#9BAB42

accent

#E642CD

background

#F7F5F9

surface

#EDE9F2

border

#C8C5CC

text

#08040F

muted

#7B797E

Preview Lab

Preview with #291B77

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

Preview Lab → · Contrast checker → · Palette generator →