#291FAB#291FAB

#291FAB is a dark, highly saturated blue. Relative luminance 0.044; OKLCH L 37.5% C 0.207 H 273.2°. Best body text is #FFFFFF at 11.18:1 contrast (WCAG AA passes).

Color values

HEX	#291FAB
RGB	rgb(41, 31, 171)
HSL	hsl(244, 69%, 40%)
HSV	hsv(244, 82%, 67%)
CMYK	cmyk(76%, 81.9%, 0%, 32.9%)
CIE-LAB	lab(24.92, 49.40, -71.36)
CIE-LCH	lch(24.92, 86.79, 304.69°)
OKLab	oklab(37.46% 0.0114 -0.2064)
OKLCH	oklch(37.46% 0.207 273.2)
XYZ	xyz(8.7527, 4.3907, 38.9064)
Luminance	0.0439 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#291FAB #A1AB1F

analogous

#1F5BAB #291FAB #6F1FAB

triadic

#291FAB #AB291F #1FAB29

tetradic

#291FAB #AB1F5B #A1AB1F #1FAB6F

square

#291FAB #AB1F5B #A1AB1F #1FAB6F

split-complementary

#291FAB #AB6F1F #5BAB1F

monochromatic

#100C43 #1D1677 #291FAB #3A2ED9 #6B62E3

Accessibility & contrast

On white

11.18

#291FAB on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.88

#291FAB on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #291FAB

11.18:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##291FAB	#FFFFFF	#000000	##FFFFFF
##291FAB	1.00	11.18	1.88	11.18
#FFFFFF	11.18	1.00	21.00	1.00
#000000	1.88	21.00	1.00	21.00
##FFFFFF	11.18	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0042AF

Deuteranopia (green-blind)

#0034A9

Tritanopia (blue-blind)

#004B66

Achromatopsia (no color)

#3B3B3B

Design tokens & code

CSS

--color: #291fab;
/* rgb */ color: rgb(41, 31, 171);
/* oklch */ color: oklch(37.5% 0.207 273.2);

Tailwind

colors: {
  custom: {
    50: '#7a5fc5',
    500: '#291fab',
    950: '#000000',
  },
}

SCSS

$custom: #291fab;
$custom-light: #7a5fc5;
$custom-dark: #000000;

JSON

{
  "hex": "#291fab",
  "rgb": {
    "r": 41,
    "g": 31,
    "b": 171
  },
  "hsl": {
    "h": 244.286,
    "s": 69.307,
    "l": 39.608
  },
  "oklch": {
    "l": 0.37458,
    "c": 0.20676,
    "h": 273.2
  },
  "luminance": 0.04392
}

Semantic roles & 50–950 ramp

primary

#291FAB

secondary

#C0C75E

accent

#EC3CE0

background

#F8F5FC

surface

#EFE9F8

border

#CAC5D1

text

#0B0513

muted

#7C7982

Preview Lab

Preview with #291FAB

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

Preview Lab → · Contrast checker → · Palette generator →