#291C78#291C78

#291C78 is a dark, vivid blue. Relative luminance 0.027; OKLCH L 31.4% C 0.147 H 280.1°. Best body text is #FFFFFF at 13.71:1 contrast (WCAG AA passes).

Color values

HEX	#291C78
RGB	rgb(41, 28, 120)
HSL	hsl(248, 62%, 29%)
HSV	hsv(248, 77%, 47%)
CMYK	cmyk(65.8%, 76.7%, 0%, 52.9%)
CIE-LAB	lab(18.62, 34.56, -50.14)
CIE-LCH	lch(18.62, 60.90, 304.57°)
OKLab	oklab(31.35% 0.0258 -0.1447)
OKLCH	oklch(31.35% 0.147 280.1)
XYZ	xyz(4.7188, 2.6576, 18.0300)
Luminance	0.0266 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#291C78 #6B781C

analogous

#1C3D78 #291C78 #571C78

triadic

#291C78 #78291C #1C7829

tetradic

#291C78 #781C3D #6B781C #1C7857

square

#291C78 #781C3D #6B781C #1C7857

split-complementary

#291C78 #78571C #3D781C

monochromatic

#080619 #181046 #291C78 #3A28AA #523DD2

Accessibility & contrast

On white

13.71

#291C78 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.53

#291C78 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #291C78

13.71:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##291C78	#FFFFFF	#000000	##FFFFFF
##291C78	1.00	13.71	1.53	13.71
#FFFFFF	13.71	1.00	21.00	1.00
#000000	1.53	21.00	1.00	21.00
##FFFFFF	13.71	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00317B

Deuteranopia (green-blind)

#002A76

Tritanopia (blue-blind)

#003648

Achromatopsia (no color)

#2D2D2D

Design tokens & code

CSS

--color: #291c78;
/* rgb */ color: rgb(41, 28, 120);
/* oklch */ color: oklch(31.4% 0.147 280.1);

Tailwind

colors: {
  custom: {
    50: '#6e5aa0',
    500: '#291c78',
    950: '#000000',
  },
}

SCSS

$custom: #291c78;
$custom-light: #6e5aa0;
$custom-dark: #000000;

JSON

{
  "hex": "#291c78",
  "rgb": {
    "r": 41,
    "g": 28,
    "b": 120
  },
  "hsl": {
    "h": 248.478,
    "s": 62.162,
    "l": 29.02
  },
  "oklch": {
    "l": 0.31351,
    "c": 0.14698,
    "h": 280.1
  },
  "luminance": 0.02658
}

Semantic roles & 50–950 ramp

primary

#291C78

secondary

#9DAC44

accent

#E543CE

background

#F7F5F9

surface

#EDE9F2

border

#C8C5CC

text

#08040F

muted

#7B797E

Preview Lab

Preview with #291C78

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

Preview Lab → · Contrast checker → · Palette generator →