#21556A#21556A

#21556A is a dark, moderate cyan. Relative luminance 0.079; OKLCH L 42.4% C 0.065 H 227.9°. Best body text is #FFFFFF at 8.16:1 contrast (WCAG AA passes).

Color values

HEX	#21556A
RGB	rgb(33, 85, 106)
HSL	hsl(197, 53%, 27%)
HSV	hsv(197, 69%, 42%)
CMYK	cmyk(68.9%, 19.8%, 0%, 58.4%)
CIE-LAB	lab(33.69, -9.96, -17.18)
CIE-LCH	lch(33.69, 19.86, 239.89°)
OKLab	oklab(42.42% -0.0434 -0.048)
OKLCH	oklch(42.42% 0.065 227.9)
XYZ	xyz(6.4762, 7.8603, 14.8088)
Luminance	0.0786 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#21556A #6A3621

analogous

#216A5A #21556A #21316A

triadic

#21556A #6A2155 #556A21

tetradic

#21556A #5A216A #6A3621 #316A21

square

#21556A #5A216A #6A3621 #316A21

split-complementary

#21556A #6A2131 #6A5A21

monochromatic

#071317 #12303B #21556A #307A99 #419EC4

Accessibility & contrast

On white

8.16

#21556A on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.57

#21556A on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #21556A

8.16:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##21556A	#FFFFFF	#000000	##FFFFFF
##21556A	1.00	8.16	2.57	8.16
#FFFFFF	8.16	1.00	21.00	1.00
#000000	2.57	21.00	1.00	21.00
##FFFFFF	8.16	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#4A536B

Deuteranopia (green-blind)

#404C6A

Tritanopia (blue-blind)

#005B5C

Achromatopsia (no color)

#4F4F4F

Design tokens & code

CSS

--color: #21556a;
/* rgb */ color: rgb(33, 85, 106);
/* oklch */ color: oklch(42.4% 0.065 227.9);

Tailwind

colors: {
  custom: {
    50: '#668494',
    500: '#21556a',
    950: '#000000',
  },
}

SCSS

$custom: #21556a;
$custom-light: #668494;
$custom-dark: #000000;

JSON

{
  "hex": "#21556a",
  "rgb": {
    "r": 33,
    "g": 85,
    "b": 106
  },
  "hsl": {
    "h": 197.26,
    "s": 52.518,
    "l": 27.255
  },
  "oklch": {
    "l": 0.4242,
    "c": 0.06471,
    "h": 227.9
  },
  "luminance": 0.07861
}

Semantic roles & 50–950 ramp

primary

#21556A

secondary

#9E6149

accent

#754CDC

background

#F6F8F9

surface

#EBEFF1

border

#C6CACB

text

#060B0D

muted

#7A7C7E

Preview Lab

Preview with #21556A

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

Preview Lab → · Contrast checker → · Palette generator →