#291F8D#291F8D

#291F8D is a dark, vivid blue. Relative luminance 0.034; OKLCH L 34.1% C 0.171 H 276.4°. Best body text is #FFFFFF at 12.54:1 contrast (WCAG AA passes).

Color values

HEX	#291F8D
RGB	rgb(41, 31, 141)
HSL	hsl(245, 64%, 34%)
HSV	hsv(245, 78%, 55%)
CMYK	cmyk(70.9%, 78%, 0%, 44.7%)
CIE-LAB	lab(21.48, 39.82, -58.68)
CIE-LCH	lch(21.48, 70.92, 304.16°)
OKLab	oklab(34.05% 0.0189 -0.1696)
OKLCH	oklch(34.05% 0.171 276.4)
XYZ	xyz(6.2106, 3.3739, 25.5181)
Luminance	0.0337 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#291F8D #838D1F

analogous

#1F4C8D #291F8D #601F8D

triadic

#291F8D #8D291F #1F8D29

tetradic

#291F8D #8D1F4C #838D1F #1F8D60

square

#291F8D #8D1F4C #838D1F #1F8D60

split-complementary

#291F8D #8D601F #4C8D1F

monochromatic

#0C0929 #1A145B #291F8D #382ABF #5B4ED8

Accessibility & contrast

On white

12.54

#291F8D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.67

#291F8D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #291F8D

12.54:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##291F8D	#FFFFFF	#000000	##FFFFFF
##291F8D	1.00	12.54	1.67	12.54
#FFFFFF	12.54	1.00	21.00	1.00
#000000	1.67	21.00	1.00	21.00
##FFFFFF	12.54	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003890

Deuteranopia (green-blind)

#002F8B

Tritanopia (blue-blind)

#003F55

Achromatopsia (no color)

#343434

Design tokens & code

CSS

--color: #291f8d;
/* rgb */ color: rgb(41, 31, 141);
/* oklch */ color: oklch(34.1% 0.171 276.4);

Tailwind

colors: {
  custom: {
    50: '#735db0',
    500: '#291f8d',
    950: '#000000',
  },
}

SCSS

$custom: #291f8d;
$custom-light: #735db0;
$custom-dark: #000000;

JSON

{
  "hex": "#291f8d",
  "rgb": {
    "r": 41,
    "g": 31,
    "b": 141
  },
  "hsl": {
    "h": 245.455,
    "s": 63.953,
    "l": 33.725
  },
  "oklch": {
    "l": 0.3405,
    "c": 0.17067,
    "h": 276.4
  },
  "luminance": 0.03374
}

Semantic roles & 50–950 ramp

primary

#291F8D

secondary

#B1BB4D

accent

#E741D8

background

#F7F5FA

surface

#EDE9F5

border

#C8C5CF

text

#090411

muted

#7B7980

Preview Lab

Preview with #291F8D

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

Preview Lab → · Contrast checker → · Palette generator →