#21359A#21359A

#21359A is a dark, vivid blue. Relative luminance 0.052; OKLCH L 38.5% C 0.165 H 268.4°. Best body text is #FFFFFF at 10.29:1 contrast (WCAG AA passes).

Color values

HEX	#21359A
RGB	rgb(33, 53, 154)
HSL	hsl(230, 65%, 37%)
HSV	hsv(230, 79%, 60%)
CMYK	cmyk(78.6%, 65.6%, 0%, 39.6%)
CIE-LAB	lab(27.30, 29.99, -57.14)
CIE-LCH	lch(27.30, 64.53, 297.69°)
OKLab	oklab(38.51% -0.0046 -0.1653)
OKLCH	oklch(38.51% 0.165 268.4)
XYZ	xyz(7.7310, 5.2018, 31.1622)
Luminance	0.0520 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#21359A #9A8621

analogous

#21729A #21359A #4A219A

triadic

#21359A #9A2135 #359A21

tetradic

#21359A #9A2172 #9A8621 #219A4A

square

#21359A #9A2172 #9A8621 #219A4A

split-complementary

#21359A #9A4A21 #729A21

monochromatic

#0B1235 #162468 #21359A #2C46CC #5A6FDC

Accessibility & contrast

On white

10.29

#21359A on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.04

#21359A on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #21359A

10.29:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##21359A	#FFFFFF	#000000	##FFFFFF
##21359A	1.00	10.29	2.04	10.29
#FFFFFF	10.29	1.00	21.00	1.00
#000000	2.04	21.00	1.00	21.00
##FFFFFF	10.29	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00469D

Deuteranopia (green-blind)

#003B98

Tritanopia (blue-blind)

#005062

Achromatopsia (no color)

#404040

Design tokens & code

CSS

--color: #21359a;
/* rgb */ color: rgb(33, 53, 154);
/* oklch */ color: oklch(38.5% 0.165 268.4);

Tailwind

colors: {
  custom: {
    50: '#716cb9',
    500: '#21359a',
    950: '#000000',
  },
}

SCSS

$custom: #21359a;
$custom-light: #716cb9;
$custom-dark: #000000;

JSON

{
  "hex": "#21359a",
  "rgb": {
    "r": 33,
    "g": 53,
    "b": 154
  },
  "hsl": {
    "h": 230.083,
    "s": 64.706,
    "l": 36.667
  },
  "oklch": {
    "l": 0.38509,
    "c": 0.1654,
    "h": 268.4
  },
  "luminance": 0.05203
}

Semantic roles & 50–950 ramp

primary

#21359A

secondary

#C0AE57

accent

#CC40E8

background

#F7F6FB

surface

#EDEBF6

border

#C8C6D0

text

#090712

muted

#7B7A81

Preview Lab

Preview with #21359A

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

Preview Lab → · Contrast checker → · Palette generator →