#21336B#21336B

#21336B is a dark, moderate blue. Relative luminance 0.038; OKLCH L 33.9% C 0.100 H 267.5°. Best body text is #FFFFFF at 12.00:1 contrast (WCAG AA passes).

Color values

HEX	#21336B
RGB	rgb(33, 51, 107)
HSL	hsl(225, 53%, 27%)
HSV	hsv(225, 69%, 42%)
CMYK	cmyk(69.2%, 52.3%, 0%, 58%)
CIE-LAB	lab(22.83, 13.01, -34.93)
CIE-LCH	lch(22.83, 37.28, 290.43°)
OKLab	oklab(33.95% -0.0044 -0.1001)
OKLCH	oklch(33.95% 0.1 267.5)
XYZ	xyz(4.4640, 3.7521, 14.3960)
Luminance	0.0375 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#21336B #6B5921

analogous

#21586B #21336B #34216B

triadic

#21336B #6B2133 #336B21

tetradic

#21336B #6B2158 #6B5921 #216B34

square

#21336B #6B2158 #6B5921 #216B34

split-complementary

#21336B #6B3421 #586B21

monochromatic

#070B17 #131D3C #21336B #2F499A #4262C5

Accessibility & contrast

On white

12.00

#21336B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.75

#21336B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #21336B

12.00:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##21336B	#FFFFFF	#000000	##FFFFFF
##21336B	1.00	12.00	1.75	12.00
#FFFFFF	12.00	1.00	21.00	1.00
#000000	1.75	21.00	1.00	21.00
##FFFFFF	12.00	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#143A6D

Deuteranopia (green-blind)

#02336A

Tritanopia (blue-blind)

#00404A

Achromatopsia (no color)

#363636

Design tokens & code

CSS

--color: #21336b;
/* rgb */ color: rgb(33, 51, 107);
/* oklch */ color: oklch(33.9% 0.100 267.5);

Tailwind

colors: {
  custom: {
    50: '#656a96',
    500: '#21336b',
    950: '#000000',
  },
}

SCSS

$custom: #21336b;
$custom-light: #656a96;
$custom-dark: #000000;

JSON

{
  "hex": "#21336b",
  "rgb": {
    "r": 33,
    "g": 51,
    "b": 107
  },
  "hsl": {
    "h": 225.405,
    "s": 52.857,
    "l": 27.451
  },
  "oklch": {
    "l": 0.33949,
    "c": 0.10023,
    "h": 267.5
  },
  "luminance": 0.03753
}

Semantic roles & 50–950 ramp

primary

#21336B

secondary

#9F8A49

accent

#B94CDC

background

#F6F6F9

surface

#EBEBF2

border

#C6C6CC

text

#06060D

muted

#7A7A7E

Preview Lab

Preview with #21336B

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

Preview Lab → · Contrast checker → · Palette generator →