#218FAD#218FAD

#218FAD is a mid, moderate cyan. Relative luminance 0.230; OKLCH L 60.5% C 0.103 H 221.3°. Best body text is #000000 at 5.60:1 contrast (WCAG AA passes).

Color values

HEX	#218FAD
RGB	rgb(33, 143, 173)
HSL	hsl(193, 68%, 40%)
HSV	hsv(193, 81%, 68%)
CMYK	cmyk(80.9%, 17.3%, 0%, 32.2%)
CIE-LAB	lab(55.05, -19.20, -24.24)
CIE-LCH	lch(55.05, 30.92, 231.63°)
OKLab	oklab(60.47% -0.0772 -0.0679)
OKLCH	oklch(60.47% 0.103 221.3)
XYZ	xyz(17.9893, 22.9831, 43.0151)
Luminance	0.2298 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#218FAD #AD3F21

analogous

#21AD85 #218FAD #2149AD

triadic

#218FAD #AD218F #8FAD21

tetradic

#218FAD #8521AD #AD3F21 #49AD21

square

#218FAD #8521AD #AD3F21 #49AD21

split-complementary

#218FAD #AD2149 #AD8521

monochromatic

#0D3A46 #17657A #218FAD #33B5D8 #66C7E2

Accessibility & contrast

On white

3.75

#218FAD on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.60

#218FAD on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #218FAD

5.60:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##218FAD	#FFFFFF	#000000	##000000
##218FAD	1.00	3.75	5.60	5.60
#FFFFFF	3.75	1.00	21.00	21.00
#000000	5.60	21.00	1.00	1.00
##000000	5.60	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#7D8BAF

Deuteranopia (green-blind)

#6B7EAD

Tritanopia (blue-blind)

#009899

Achromatopsia (no color)

#848484

Design tokens & code

CSS

--color: #218fad;
/* rgb */ color: rgb(33, 143, 173);
/* oklch */ color: oklch(60.5% 0.103 221.3);

Tailwind

colors: {
  custom: {
    50: '#75b0c5',
    500: '#218fad',
    950: '#000000',
  },
}

SCSS

$custom: #218fad;
$custom-light: #75b0c5;
$custom-dark: #000000;

JSON

{
  "hex": "#218fad",
  "rgb": {
    "r": 33,
    "g": 143,
    "b": 173
  },
  "hsl": {
    "h": 192.857,
    "s": 67.961,
    "l": 40.392
  },
  "oklch": {
    "l": 0.60468,
    "c": 0.10281,
    "h": 221.3
  },
  "luminance": 0.22985
}

Semantic roles & 50–950 ramp

primary

#218FAD

secondary

#C77862

accent

#623DEB

background

#F7FAFC

surface

#EEF4F8

border

#C9CED1

text

#0A1013

muted

#7C7F82

Preview Lab

Preview with #218FAD

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

Preview Lab → · Contrast checker → · Palette generator →