#21359D#21359D

#21359D is a dark, vivid blue. Relative luminance 0.053; OKLCH L 38.8% C 0.169 H 268.4°. Best body text is #FFFFFF at 10.19:1 contrast (WCAG AA passes).

Color values

HEX	#21359D
RGB	rgb(33, 53, 157)
HSL	hsl(230, 65%, 37%)
HSV	hsv(230, 79%, 62%)
CMYK	cmyk(79%, 66.2%, 0%, 38.4%)
CIE-LAB	lab(27.58, 31.13, -58.51)
CIE-LCH	lch(27.58, 66.28, 298.01°)
OKLab	oklab(38.8% -0.0048 -0.1693)
OKLCH	oklch(38.8% 0.169 268.4)
XYZ	xyz(7.9840, 5.3030, 32.4945)
Luminance	0.0530 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#21359D #9D8921

analogous

#21739D #21359D #4B219D

triadic

#21359D #9D2135 #359D21

tetradic

#21359D #9D2173 #9D8921 #219D4B

square

#21359D #9D2173 #9D8921 #219D4B

split-complementary

#21359D #9D4B21 #739D21

monochromatic

#0C1338 #16246A #21359D #2C46D0 #5C71DD

Accessibility & contrast

On white

10.19

#21359D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.06

#21359D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #21359D

10.19:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##21359D	#FFFFFF	#000000	##FFFFFF
##21359D	1.00	10.19	2.06	10.19
#FFFFFF	10.19	1.00	21.00	1.00
#000000	2.06	21.00	1.00	21.00
##FFFFFF	10.19	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0047A0

Deuteranopia (green-blind)

#003B9B

Tritanopia (blue-blind)

#005164

Achromatopsia (no color)

#414141

Design tokens & code

CSS

--color: #21359d;
/* rgb */ color: rgb(33, 53, 157);
/* oklch */ color: oklch(38.8% 0.169 268.4);

Tailwind

colors: {
  custom: {
    50: '#726cbb',
    500: '#21359d',
    950: '#000000',
  },
}

SCSS

$custom: #21359d;
$custom-light: #726cbb;
$custom-dark: #000000;

JSON

{
  "hex": "#21359d",
  "rgb": {
    "r": 33,
    "g": 53,
    "b": 157
  },
  "hsl": {
    "h": 230.323,
    "s": 65.263,
    "l": 37.255
  },
  "oklch": {
    "l": 0.38799,
    "c": 0.16941,
    "h": 268.4
  },
  "luminance": 0.05304
}

Semantic roles & 50–950 ramp

primary

#21359D

secondary

#C1B059

accent

#CD40E8

background

#F7F6FB

surface

#EDEBF6

border

#C8C6D0

text

#090712

muted

#7B7A81

Preview Lab

Preview with #21359D

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

Preview Lab → · Contrast checker → · Palette generator →