#218DA6#218DA6

#218DA6 is a mid, moderate cyan. Relative luminance 0.221; OKLCH L 59.7% C 0.099 H 217.7°. Best body text is #000000 at 5.43:1 contrast (WCAG AA passes).

Color values

HEX	#218DA6
RGB	rgb(33, 141, 166)
HSL	hsl(191, 67%, 39%)
HSV	hsv(191, 80%, 65%)
CMYK	cmyk(80.1%, 15.1%, 0%, 34.9%)
CIE-LAB	lab(54.16, -20.52, -21.61)
CIE-LCH	lch(54.16, 29.80, 226.48°)
OKLab	oklab(59.66% -0.078 -0.0604)
OKLCH	oklch(59.66% 0.099 217.7)
XYZ	xyz(17.0321, 22.1241, 39.4417)
Luminance	0.2213 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#218DA6 #A63A21

analogous

#21A67D #218DA6 #214BA6

triadic

#218DA6 #A6218D #8DA621

tetradic

#218DA6 #7D21A6 #A63A21 #4BA621

square

#218DA6 #7D21A6 #A63A21 #4BA621

split-complementary

#218DA6 #A6214B #A67D21

monochromatic

#0D3640 #176273 #218DA6 #2FB6D6 #62C8E0

Accessibility & contrast

On white

3.87

#218DA6 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.43

#218DA6 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #218DA6

5.43:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##218DA6	#FFFFFF	#000000	##000000
##218DA6	1.00	3.87	5.43	5.43
#FFFFFF	3.87	1.00	21.00	21.00
#000000	5.43	21.00	1.00	1.00
##000000	5.43	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#7D89A7

Deuteranopia (green-blind)

#6B7CA6

Tritanopia (blue-blind)

#009695

Achromatopsia (no color)

#818181

Design tokens & code

CSS

--color: #218da6;
/* rgb */ color: rgb(33, 141, 166);
/* oklch */ color: oklch(59.7% 0.099 217.7);

Tailwind

colors: {
  custom: {
    50: '#74aec0',
    500: '#218da6',
    950: '#000000',
  },
}

SCSS

$custom: #218da6;
$custom-light: #74aec0;
$custom-dark: #000000;

JSON

{
  "hex": "#218da6",
  "rgb": {
    "r": 33,
    "g": 141,
    "b": 166
  },
  "hsl": {
    "h": 191.278,
    "s": 66.834,
    "l": 39.02
  },
  "oklch": {
    "l": 0.59656,
    "c": 0.09868,
    "h": 217.7
  },
  "luminance": 0.22126
}

Semantic roles & 50–950 ramp

primary

#218DA6

secondary

#C5715E

accent

#5E3EEA

background

#F7FAFB

surface

#EEF4F7

border

#C9CED0

text

#0A1012

muted

#7C7F81

Preview Lab

Preview with #218DA6

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

Preview Lab → · Contrast checker → · Palette generator →