#218CA8#218CA8

#218CA8 is a mid, moderate cyan. Relative luminance 0.219; OKLCH L 59.5% C 0.100 H 220.3°. Best body text is #000000 at 5.38:1 contrast (WCAG AA passes).

Color values

HEX	#218CA8
RGB	rgb(33, 140, 168)
HSL	hsl(192, 67%, 39%)
HSV	hsv(192, 80%, 66%)
CMYK	cmyk(80.4%, 16.7%, 0%, 34.1%)
CIE-LAB	lab(53.93, -19.30, -23.11)
CIE-LCH	lch(53.93, 30.11, 230.13°)
OKLab	oklab(59.5% -0.0762 -0.0647)
OKLCH	oklch(59.5% 0.1 220.3)
XYZ	xyz(17.0702, 21.9045, 40.3665)
Luminance	0.2191 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#218CA8 #A83D21

analogous

#21A880 #218CA8 #2149A8

triadic

#218CA8 #A8218C #8CA821

tetradic

#218CA8 #8021A8 #A83D21 #49A821

square

#218CA8 #8021A8 #A83D21 #49A821

split-complementary

#218CA8 #A82149 #A88021

monochromatic

#0D3742 #176175 #218CA8 #30B4D6 #63C6E0

Accessibility & contrast

On white

3.90

#218CA8 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.38

#218CA8 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #218CA8

5.38:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##218CA8	#FFFFFF	#000000	##000000
##218CA8	1.00	3.90	5.38	5.38
#FFFFFF	3.90	1.00	21.00	21.00
#000000	5.38	21.00	1.00	1.00
##000000	5.38	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#7B88A9

Deuteranopia (green-blind)

#697BA8

Tritanopia (blue-blind)

#009595

Achromatopsia (no color)

#818181

Design tokens & code

CSS

--color: #218ca8;
/* rgb */ color: rgb(33, 140, 168);
/* oklch */ color: oklch(59.5% 0.100 220.3);

Tailwind

colors: {
  custom: {
    50: '#74adc2',
    500: '#218ca8',
    950: '#000000',
  },
}

SCSS

$custom: #218ca8;
$custom-light: #74adc2;
$custom-dark: #000000;

JSON

{
  "hex": "#218ca8",
  "rgb": {
    "r": 33,
    "g": 140,
    "b": 168
  },
  "hsl": {
    "h": 192.444,
    "s": 67.164,
    "l": 39.412
  },
  "oklch": {
    "l": 0.59495,
    "c": 0.10001,
    "h": 220.3
  },
  "luminance": 0.21907
}

Semantic roles & 50–950 ramp

primary

#218CA8

secondary

#C5755F

accent

#613EEA

background

#F7FAFB

surface

#EEF4F7

border

#C9CED0

text

#0A1012

muted

#7C7F81

Preview Lab

Preview with #218CA8

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

Preview Lab → · Contrast checker → · Palette generator →