#291B90#291B90

#291B90 is a dark, vivid blue. Relative luminance 0.033; OKLCH L 33.9% C 0.178 H 276.5°. Best body text is #FFFFFF at 12.70:1 contrast (WCAG AA passes).

Color values

HEX	#291B90
RGB	rgb(41, 27, 144)
HSL	hsl(247, 68%, 34%)
HSV	hsv(247, 81%, 56%)
CMYK	cmyk(71.5%, 81.3%, 0%, 43.5%)
CIE-LAB	lab(21.09, 42.90, -61.20)
CIE-LCH	lch(21.09, 74.74, 305.03°)
OKLab	oklab(33.87% 0.0201 -0.1769)
OKLCH	oklch(33.87% 0.178 276.5)
XYZ	xyz(6.3388, 3.2683, 26.6769)
Luminance	0.0327 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#291B90 #82901B

analogous

#1B4890 #291B90 #631B90

triadic

#291B90 #90291B #1B9029

tetradic

#291B90 #901B48 #82901B #1B9063

square

#291B90 #901B48 #82901B #1B9063

split-complementary

#291B90 #90631B #48901B

monochromatic

#0C0829 #1A115C #291B90 #3825C4 #5A49DD

Accessibility & contrast

On white

12.70

#291B90 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.65

#291B90 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #291B90

12.70:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##291B90	#FFFFFF	#000000	##FFFFFF
##291B90	1.00	12.70	1.65	12.70
#FFFFFF	12.70	1.00	21.00	1.00
#000000	1.65	21.00	1.00	21.00
##FFFFFF	12.70	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003793

Deuteranopia (green-blind)

#002E8E

Tritanopia (blue-blind)

#003F56

Achromatopsia (no color)

#333333

Design tokens & code

CSS

--color: #291b90;
/* rgb */ color: rgb(41, 27, 144);
/* oklch */ color: oklch(33.9% 0.178 276.5);

Tailwind

colors: {
  custom: {
    50: '#745bb2',
    500: '#291b90',
    950: '#000000',
  },
}

SCSS

$custom: #291b90;
$custom-light: #745bb2;
$custom-dark: #000000;

JSON

{
  "hex": "#291b90",
  "rgb": {
    "r": 41,
    "g": 27,
    "b": 144
  },
  "hsl": {
    "h": 247.179,
    "s": 68.421,
    "l": 33.529
  },
  "oklch": {
    "l": 0.33874,
    "c": 0.17804,
    "h": 276.5
  },
  "luminance": 0.03269
}

Semantic roles & 50–950 ramp

primary

#291B90

secondary

#B0BF48

accent

#EB3DD6

background

#F7F5FB

surface

#EEE9F6

border

#C9C5D0

text

#090411

muted

#7B7980

Preview Lab

Preview with #291B90

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

Preview Lab → · Contrast checker → · Palette generator →