#291B8E#291B8E

#291B8E is a dark, vivid blue. Relative luminance 0.032; OKLCH L 33.6% C 0.176 H 276.7°. Best body text is #FFFFFF at 12.79:1 contrast (WCAG AA passes).

Color values

HEX	#291B8E
RGB	rgb(41, 27, 142)
HSL	hsl(247, 68%, 33%)
HSV	hsv(247, 81%, 56%)
CMYK	cmyk(71.1%, 81%, 0%, 44.3%)
CIE-LAB	lab(20.86, 42.27, -60.34)
CIE-LCH	lch(20.86, 73.67, 305.01°)
OKLab	oklab(33.65% 0.0206 -0.1744)
OKLCH	oklch(33.65% 0.176 276.7)
XYZ	xyz(6.1873, 3.2077, 25.8790)
Luminance	0.0321 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#291B8E #808E1B

analogous

#1B478E #291B8E #621B8E

triadic

#291B8E #8E291B #1B8E29

tetradic

#291B8E #8E1B47 #808E1B #1B8E62

square

#291B8E #8E1B47 #808E1B #1B8E62

split-complementary

#291B8E #8E621B #478E1B

monochromatic

#0B0727 #1A115B #291B8E #3825C1 #5947DC

Accessibility & contrast

On white

12.79

#291B8E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.64

#291B8E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #291B8E

12.79:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##291B8E	#FFFFFF	#000000	##FFFFFF
##291B8E	1.00	12.79	1.64	12.79
#FFFFFF	12.79	1.00	21.00	1.00
#000000	1.64	21.00	1.00	21.00
##FFFFFF	12.79	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003791

Deuteranopia (green-blind)

#002D8C

Tritanopia (blue-blind)

#003E55

Achromatopsia (no color)

#323232

Design tokens & code

CSS

--color: #291b8e;
/* rgb */ color: rgb(41, 27, 142);
/* oklch */ color: oklch(33.6% 0.176 276.7);

Tailwind

colors: {
  custom: {
    50: '#735bb0',
    500: '#291b8e',
    950: '#000000',
  },
}

SCSS

$custom: #291b8e;
$custom-light: #735bb0;
$custom-dark: #000000;

JSON

{
  "hex": "#291b8e",
  "rgb": {
    "r": 41,
    "g": 27,
    "b": 142
  },
  "hsl": {
    "h": 247.304,
    "s": 68.047,
    "l": 33.137
  },
  "oklch": {
    "l": 0.33645,
    "c": 0.17561,
    "h": 276.7
  },
  "luminance": 0.03208
}

Semantic roles & 50–950 ramp

primary

#291B8E

secondary

#AFBE47

accent

#EB3DD6

background

#F7F5FB

surface

#EEE9F6

border

#C9C5D0

text

#090411

muted

#7B7980

Preview Lab

Preview with #291B8E

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

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