#291F8E#291F8E

#291F8E is a dark, vivid blue. Relative luminance 0.034; OKLCH L 34.2% C 0.172 H 276.2°. Best body text is #FFFFFF at 12.49:1 contrast (WCAG AA passes).

Color values

HEX	#291F8E
RGB	rgb(41, 31, 142)
HSL	hsl(245, 64%, 34%)
HSV	hsv(245, 78%, 56%)
CMYK	cmyk(71.1%, 78.2%, 0%, 44.3%)
CIE-LAB	lab(21.59, 40.15, -59.12)
CIE-LCH	lch(21.59, 71.47, 304.18°)
OKLab	oklab(34.16% 0.0187 -0.1709)
OKLCH	oklch(34.16% 0.172 276.2)
XYZ	xyz(6.2853, 3.4038, 25.9117)
Luminance	0.0340 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#291F8E #848E1F

analogous

#1F4D8E #291F8E #611F8E

triadic

#291F8E #8E291F #1F8E29

tetradic

#291F8E #8E1F4D #848E1F #1F8E61

square

#291F8E #8E1F4D #848E1F #1F8E61

split-complementary

#291F8E #8E611F #4D8E1F

monochromatic

#0C092A #1A145C #291F8E #382AC0 #5B4FD9

Accessibility & contrast

On white

12.49

#291F8E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.68

#291F8E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #291F8E

12.49:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##291F8E	#FFFFFF	#000000	##FFFFFF
##291F8E	1.00	12.49	1.68	12.49
#FFFFFF	12.49	1.00	21.00	1.00
#000000	1.68	21.00	1.00	21.00
##FFFFFF	12.49	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003891

Deuteranopia (green-blind)

#002F8C

Tritanopia (blue-blind)

#004055

Achromatopsia (no color)

#343434

Design tokens & code

CSS

--color: #291f8e;
/* rgb */ color: rgb(41, 31, 142);
/* oklch */ color: oklch(34.2% 0.172 276.2);

Tailwind

colors: {
  custom: {
    50: '#735db0',
    500: '#291f8e',
    950: '#000000',
  },
}

SCSS

$custom: #291f8e;
$custom-light: #735db0;
$custom-dark: #000000;

JSON

{
  "hex": "#291f8e",
  "rgb": {
    "r": 41,
    "g": 31,
    "b": 142
  },
  "hsl": {
    "h": 245.405,
    "s": 64.162,
    "l": 33.922
  },
  "oklch": {
    "l": 0.3416,
    "c": 0.17191,
    "h": 276.2
  },
  "luminance": 0.03404
}

Semantic roles & 50–950 ramp

primary

#291F8E

secondary

#B2BB4D

accent

#E741D8

background

#F7F5FB

surface

#EEE9F6

border

#C9C5D0

text

#090411

muted

#7B7980

Preview Lab

Preview with #291F8E

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

Preview Lab → · Contrast checker → · Palette generator →