#21317A#21317A

#21317A is a dark, vivid blue. Relative luminance 0.039; OKLCH L 34.8% C 0.126 H 269.4°. Best body text is #FFFFFF at 11.76:1 contrast (WCAG AA passes).

Color values

HEX	#21317A
RGB	rgb(33, 49, 122)
HSL	hsl(229, 57%, 30%)
HSV	hsv(229, 73%, 48%)
CMYK	cmyk(73%, 59.8%, 0%, 52.2%)
CIE-LAB	lab(23.42, 20.35, -43.58)
CIE-LCH	lch(23.42, 48.10, 295.03°)
OKLab	oklab(34.76% -0.0014 -0.1256)
OKLCH	oklch(34.76% 0.126 269.4)
XYZ	xyz(5.2372, 3.9246, 18.8901)
Luminance	0.0393 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#21317A #7A6A21

analogous

#215E7A #21317A #3D217A

triadic

#21317A #7A2131 #317A21

tetradic

#21317A #7A215E #7A6A21 #217A3D

square

#21317A #7A215E #7A6A21 #217A3D

split-complementary

#21317A #7A3D21 #5E7A21

monochromatic

#070A1A #141E4A #21317A #2E44AA #4860CD

Accessibility & contrast

On white

11.76

#21317A on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.79

#21317A on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #21317A

11.76:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##21317A	#FFFFFF	#000000	##FFFFFF
##21317A	1.00	11.76	1.79	11.76
#FFFFFF	11.76	1.00	21.00	1.00
#000000	1.79	21.00	1.00	21.00
##FFFFFF	11.76	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003C7C

Deuteranopia (green-blind)

#003479

Tritanopia (blue-blind)

#004350

Achromatopsia (no color)

#383838

Design tokens & code

CSS

--color: #21317a;
/* rgb */ color: rgb(33, 49, 122);
/* oklch */ color: oklch(34.8% 0.126 269.4);

Tailwind

colors: {
  custom: {
    50: '#6968a1',
    500: '#21317a',
    950: '#000000',
  },
}

SCSS

$custom: #21317a;
$custom-light: #6968a1;
$custom-dark: #000000;

JSON

{
  "hex": "#21317a",
  "rgb": {
    "r": 33,
    "g": 49,
    "b": 122
  },
  "hsl": {
    "h": 229.213,
    "s": 57.419,
    "l": 30.392
  },
  "oklch": {
    "l": 0.34761,
    "c": 0.12561,
    "h": 269.4
  },
  "luminance": 0.03925
}

Semantic roles & 50–950 ramp

primary

#21317A

secondary

#AD9B4A

accent

#C547E1

background

#F6F6FA

surface

#ECEBF3

border

#C7C6CD

text

#07060F

muted

#7A7A7F

Preview Lab

Preview with #21317A

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

Preview Lab → · Contrast checker → · Palette generator →