#291F78#291F78

#291F78 is a dark, vivid blue. Relative luminance 0.028; OKLCH L 31.8% C 0.144 H 279.5°. Best body text is #FFFFFF at 13.45:1 contrast (WCAG AA passes).

Color values

HEX	#291F78
RGB	rgb(41, 31, 120)
HSL	hsl(247, 59%, 30%)
HSV	hsv(247, 74%, 47%)
CMYK	cmyk(65.8%, 74.2%, 0%, 52.9%)
CIE-LAB	lab(19.25, 32.77, -49.09)
CIE-LCH	lch(19.25, 59.03, 303.73°)
OKLab	oklab(31.8% 0.0236 -0.1416)
OKLCH	oklch(31.8% 0.144 279.5)
XYZ	xyz(4.7935, 2.8071, 18.0549)
Luminance	0.0281 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#291F78 #6E781F

analogous

#1F4178 #291F78 #561F78

triadic

#291F78 #78291F #1F7829

tetradic

#291F78 #781F41 #6E781F #1F7856

square

#291F78 #781F41 #6E781F #1F7856

split-complementary

#291F78 #78561F #41781F

monochromatic

#080618 #181247 #291F78 #3A2CA9 #5343CE

Accessibility & contrast

On white

13.45

#291F78 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.56

#291F78 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #291F78

13.45:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##291F78	#FFFFFF	#000000	##FFFFFF
##291F78	1.00	13.45	1.56	13.45
#FFFFFF	13.45	1.00	21.00	1.00
#000000	1.56	21.00	1.00	21.00
##FFFFFF	13.45	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00327B

Deuteranopia (green-blind)

#002B76

Tritanopia (blue-blind)

#003749

Achromatopsia (no color)

#2F2F2F

Design tokens & code

CSS

--color: #291f78;
/* rgb */ color: rgb(41, 31, 120);
/* oklch */ color: oklch(31.8% 0.144 279.5);

Tailwind

colors: {
  custom: {
    50: '#6e5ca0',
    500: '#291f78',
    950: '#000000',
  },
}

SCSS

$custom: #291f78;
$custom-light: #6e5ca0;
$custom-dark: #000000;

JSON

{
  "hex": "#291f78",
  "rgb": {
    "r": 41,
    "g": 31,
    "b": 120
  },
  "hsl": {
    "h": 246.742,
    "s": 58.94,
    "l": 29.608
  },
  "oklch": {
    "l": 0.31803,
    "c": 0.14359,
    "h": 279.5
  },
  "luminance": 0.02807
}

Semantic roles & 50–950 ramp

primary

#291F78

secondary

#A0AB47

accent

#E246D1

background

#F7F5F9

surface

#EDE9F2

border

#C8C5CC

text

#08040F

muted

#7B797E

Preview Lab

Preview with #291F78

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

Preview Lab → · Contrast checker → · Palette generator →