#218CAD#218CAD

#218CAD is a mid, moderate cyan. Relative luminance 0.221; OKLCH L 59.7% C 0.103 H 224.1°. Best body text is #000000 at 5.42:1 contrast (WCAG AA passes).

Color values

HEX	#218CAD
RGB	rgb(33, 140, 173)
HSL	hsl(194, 68%, 40%)
HSV	hsv(194, 81%, 68%)
CMYK	cmyk(80.9%, 19.1%, 0%, 32.2%)
CIE-LAB	lab(54.13, -17.58, -25.67)
CIE-LCH	lch(54.13, 31.12, 235.60°)
OKLab	oklab(59.72% -0.0743 -0.072)
OKLCH	oklch(59.72% 0.103 224.1)
XYZ	xyz(17.5450, 22.0944, 42.8670)
Luminance	0.2210 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#218CAD #AD4221

analogous

#21AD88 #218CAD #2146AD

triadic

#218CAD #AD218C #8CAD21

tetradic

#218CAD #8821AD #AD4221 #46AD21

square

#218CAD #8821AD #AD4221 #46AD21

split-complementary

#218CAD #AD2146 #AD8821

monochromatic

#0D3946 #17627A #218CAD #33B1D8 #66C5E2

Accessibility & contrast

On white

3.87

#218CAD on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.42

#218CAD on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #218CAD

5.42:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##218CAD	#FFFFFF	#000000	##000000
##218CAD	1.00	3.87	5.42	5.42
#FFFFFF	3.87	1.00	21.00	21.00
#000000	5.42	21.00	1.00	1.00
##000000	5.42	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#7989AF

Deuteranopia (green-blind)

#677CAD

Tritanopia (blue-blind)

#009697

Achromatopsia (no color)

#818181

Design tokens & code

CSS

--color: #218cad;
/* rgb */ color: rgb(33, 140, 173);
/* oklch */ color: oklch(59.7% 0.103 224.1);

Tailwind

colors: {
  custom: {
    50: '#75adc5',
    500: '#218cad',
    950: '#000000',
  },
}

SCSS

$custom: #218cad;
$custom-light: #75adc5;
$custom-dark: #000000;

JSON

{
  "hex": "#218cad",
  "rgb": {
    "r": 33,
    "g": 140,
    "b": 173
  },
  "hsl": {
    "h": 194.143,
    "s": 67.961,
    "l": 40.392
  },
  "oklch": {
    "l": 0.59723,
    "c": 0.10348,
    "h": 224.1
  },
  "luminance": 0.22097
}

Semantic roles & 50–950 ramp

primary

#218CAD

secondary

#C77A62

accent

#663DEB

background

#F7FAFC

surface

#EEF4F8

border

#C9CED1

text

#0A1013

muted

#7C7F82

Preview Lab

Preview with #218CAD

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

Preview Lab → · Contrast checker → · Palette generator →