#21718D#21718D

#21718D is a mid, moderate cyan. Relative luminance 0.141; OKLCH L 51.4% C 0.086 H 226.0°. Best body text is #FFFFFF at 5.51:1 contrast (WCAG AA passes).

Color values

HEX	#21718D
RGB	rgb(33, 113, 141)
HSL	hsl(196, 62%, 34%)
HSV	hsv(196, 77%, 55%)
CMYK	cmyk(76.6%, 19.9%, 0%, 44.7%)
CIE-LAB	lab(44.31, -13.83, -22.14)
CIE-LCH	lch(44.31, 26.11, 238.01°)
OKLab	oklab(51.42% -0.0599 -0.0621)
OKLCH	oklch(51.42% 0.086 226)
XYZ	xyz(11.3381, 14.0553, 27.3095)
Luminance	0.1406 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#21718D #8D3D21

analogous

#218D73 #21718D #213B8D

triadic

#21718D #8D2171 #718D21

tetradic

#21718D #73218D #8D3D21 #3B8D21

square

#21718D #73218D #8D3D21 #3B8D21

split-complementary

#21718D #8D213B #8D7321

monochromatic

#0A222A #15495B #21718D #2D99BF #52B4D6

Accessibility & contrast

On white

5.51

#21718D on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.81

#21718D on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #21718D

5.51:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##21718D	#FFFFFF	#000000	##FFFFFF
##21718D	1.00	5.51	3.81	5.51
#FFFFFF	5.51	1.00	21.00	1.00
#000000	3.81	21.00	1.00	21.00
##FFFFFF	5.51	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#626F8E

Deuteranopia (green-blind)

#53648D

Tritanopia (blue-blind)

#00797A

Achromatopsia (no color)

#696969

Design tokens & code

CSS

--color: #21718d;
/* rgb */ color: rgb(33, 113, 141);
/* oklch */ color: oklch(51.4% 0.086 226.0);

Tailwind

colors: {
  custom: {
    50: '#6d99ae',
    500: '#21718d',
    950: '#000000',
  },
}

SCSS

$custom: #21718d;
$custom-light: #6d99ae;
$custom-dark: #000000;

JSON

{
  "hex": "#21718d",
  "rgb": {
    "r": 33,
    "g": 113,
    "b": 141
  },
  "hsl": {
    "h": 195.556,
    "s": 62.069,
    "l": 34.118
  },
  "oklch": {
    "l": 0.51415,
    "c": 0.08627,
    "h": 226
  },
  "luminance": 0.14057
}

Semantic roles & 50–950 ramp

primary

#21718D

secondary

#BA6B50

accent

#6D43E5

background

#F7F9FA

surface

#EDF2F4

border

#C8CCCE

text

#080E10

muted

#7B7E7F

Preview Lab

Preview with #21718D

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

Preview Lab → · Contrast checker → · Palette generator →