#221581#221581

#221581 is a dark, vivid blue. Relative luminance 0.025; OKLCH L 30.9% C 0.167 H 275.8°. Best body text is #FFFFFF at 14.07:1 contrast (WCAG AA passes).

Color values

HEX	#221581
RGB	rgb(34, 21, 129)
HSL	hsl(247, 72%, 29%)
HSV	hsv(247, 84%, 51%)
CMYK	cmyk(73.6%, 83.7%, 0%, 49.4%)
CIE-LAB	lab(17.74, 40.52, -57.35)
CIE-LCH	lch(17.74, 70.22, 305.24°)
OKLab	oklab(30.89% 0.0169 -0.1658)
OKLCH	oklch(30.89% 0.167 275.8)
XYZ	xyz(4.8890, 2.4609, 20.9820)
Luminance	0.0246 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#221581 #748115

analogous

#153E81 #221581 #581581

triadic

#221581 #812215 #158122

tetradic

#221581 #81153E #748115 #158158

square

#221581 #81153E #748115 #158158

split-complementary

#221581 #815815 #3E8115

monochromatic

#07041A #140C4C #221581 #301EB6 #4733DE

Accessibility & contrast

On white

14.07

#221581 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.49

#221581 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #221581

14.07:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##221581	#FFFFFF	#000000	##FFFFFF
##221581	1.00	14.07	1.49	14.07
#FFFFFF	14.07	1.00	21.00	1.00
#000000	1.49	21.00	1.00	21.00
##FFFFFF	14.07	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003084

Deuteranopia (green-blind)

#00277F

Tritanopia (blue-blind)

#00374C

Achromatopsia (no color)

#2B2B2B

Design tokens & code

CSS

--color: #221581;
/* rgb */ color: rgb(34, 21, 129);
/* oklch */ color: oklch(30.9% 0.167 275.8);

Tailwind

colors: {
  custom: {
    50: '#6e56a7',
    500: '#221581',
    950: '#000000',
  },
}

SCSS

$custom: #221581;
$custom-light: #6e56a7;
$custom-dark: #000000;

JSON

{
  "hex": "#221581",
  "rgb": {
    "r": 34,
    "g": 21,
    "b": 129
  },
  "hsl": {
    "h": 247.222,
    "s": 72,
    "l": 29.412
  },
  "oklch": {
    "l": 0.30891,
    "c": 0.16663,
    "h": 275.8
  },
  "luminance": 0.02461
}

Semantic roles & 50–950 ramp

primary

#221581

secondary

#A7B63C

accent

#EF39D9

background

#F7F5FA

surface

#EDE9F4

border

#C8C5CE

text

#080310

muted

#7B787F

Preview Lab

Preview with #221581

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

Preview Lab → · Contrast checker → · Palette generator →