#21536A#21536A

#21536A is a dark, moderate cyan. Relative luminance 0.075; OKLCH L 41.9% C 0.065 H 231.2°. Best body text is #FFFFFF at 8.37:1 contrast (WCAG AA passes).

Color values

HEX	#21536A
RGB	rgb(33, 83, 106)
HSL	hsl(199, 53%, 27%)
HSV	hsv(199, 69%, 42%)
CMYK	cmyk(68.9%, 21.7%, 0%, 58.4%)
CIE-LAB	lab(33.03, -8.75, -18.20)
CIE-LCH	lch(33.03, 20.20, 244.33°)
OKLab	oklab(41.89% -0.041 -0.051)
OKLCH	oklch(41.89% 0.065 231.2)
XYZ	xyz(6.3210, 7.5498, 14.7570)
Luminance	0.0755 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#21536A #6A3821

analogous

#216A5D #21536A #212F6A

triadic

#21536A #6A2153 #536A21

tetradic

#21536A #5D216A #6A3821 #2F6A21

square

#21536A #5D216A #6A3821 #2F6A21

split-complementary

#21536A #6A212F #6A5D21

monochromatic

#071217 #122E3B #21536A #307899 #419BC4

Accessibility & contrast

On white

8.37

#21536A on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.51

#21536A on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #21536A

8.37:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##21536A	#FFFFFF	#000000	##FFFFFF
##21536A	1.00	8.37	2.51	8.37
#FFFFFF	8.37	1.00	21.00	1.00
#000000	2.51	21.00	1.00	21.00
##FFFFFF	8.37	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#47526B

Deuteranopia (green-blind)

#3D4A6A

Tritanopia (blue-blind)

#00595B

Achromatopsia (no color)

#4E4E4E

Design tokens & code

CSS

--color: #21536a;
/* rgb */ color: rgb(33, 83, 106);
/* oklch */ color: oklch(41.9% 0.065 231.2);

Tailwind

colors: {
  custom: {
    50: '#658394',
    500: '#21536a',
    950: '#000000',
  },
}

SCSS

$custom: #21536a;
$custom-light: #658394;
$custom-dark: #000000;

JSON

{
  "hex": "#21536a",
  "rgb": {
    "r": 33,
    "g": 83,
    "b": 106
  },
  "hsl": {
    "h": 198.904,
    "s": 52.518,
    "l": 27.255
  },
  "oklch": {
    "l": 0.41892,
    "c": 0.06543,
    "h": 231.2
  },
  "luminance": 0.0755
}

Semantic roles & 50–950 ramp

primary

#21536A

secondary

#9E6449

accent

#794CDC

background

#F6F8F9

surface

#EBEFF1

border

#C6CACB

text

#060A0D

muted

#7A7C7E

Preview Lab

Preview with #21536A

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

Preview Lab → · Contrast checker → · Palette generator →