#218DA8#218DA8

#218DA8 is a mid, moderate cyan. Relative luminance 0.222; OKLCH L 59.7% C 0.100 H 219.4°. Best body text is #000000 at 5.44:1 contrast (WCAG AA passes).

Color values

HEX	#218DA8
RGB	rgb(33, 141, 168)
HSL	hsl(192, 67%, 39%)
HSV	hsv(192, 80%, 66%)
CMYK	cmyk(80.4%, 16.1%, 0%, 34.1%)
CIE-LAB	lab(54.24, -19.84, -22.64)
CIE-LCH	lch(54.24, 30.10, 228.77°)
OKLab	oklab(59.75% -0.0772 -0.0633)
OKLCH	oklch(59.75% 0.1 219.4)
XYZ	xyz(17.2170, 22.1981, 40.4154)
Luminance	0.2220 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#218DA8 #A83C21

analogous

#21A880 #218DA8 #214AA8

triadic

#218DA8 #A8218D #8DA821

tetradic

#218DA8 #8021A8 #A83C21 #4AA821

square

#218DA8 #8021A8 #A83C21 #4AA821

split-complementary

#218DA8 #A8214A #A88021

monochromatic

#0D3742 #176275 #218DA8 #30B5D6 #63C7E0

Accessibility & contrast

On white

3.86

#218DA8 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.44

#218DA8 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #218DA8

5.44:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##218DA8	#FFFFFF	#000000	##000000
##218DA8	1.00	3.86	5.44	5.44
#FFFFFF	3.86	1.00	21.00	21.00
#000000	5.44	21.00	1.00	1.00
##000000	5.44	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#7C89A9

Deuteranopia (green-blind)

#6A7CA8

Tritanopia (blue-blind)

#009696

Achromatopsia (no color)

#828282

Design tokens & code

CSS

--color: #218da8;
/* rgb */ color: rgb(33, 141, 168);
/* oklch */ color: oklch(59.7% 0.100 219.4);

Tailwind

colors: {
  custom: {
    50: '#74aec2',
    500: '#218da8',
    950: '#000000',
  },
}

SCSS

$custom: #218da8;
$custom-light: #74aec2;
$custom-dark: #000000;

JSON

{
  "hex": "#218da8",
  "rgb": {
    "r": 33,
    "g": 141,
    "b": 168
  },
  "hsl": {
    "h": 192,
    "s": 67.164,
    "l": 39.412
  },
  "oklch": {
    "l": 0.59745,
    "c": 0.09988,
    "h": 219.4
  },
  "luminance": 0.222
}

Semantic roles & 50–950 ramp

primary

#218DA8

secondary

#C5745F

accent

#603EEA

background

#F7FAFB

surface

#EEF4F7

border

#C9CED0

text

#0A1012

muted

#7C7F81

Preview Lab

Preview with #218DA8

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

Preview Lab → · Contrast checker → · Palette generator →