#218AA8#218AA8

#218AA8 is a mid, moderate cyan. Relative luminance 0.213; OKLCH L 59.0% C 0.100 H 222.2°. Best body text is #000000 at 5.27:1 contrast (WCAG AA passes).

Color values

HEX	#218AA8
RGB	rgb(33, 138, 168)
HSL	hsl(193, 67%, 39%)
HSV	hsv(193, 80%, 66%)
CMYK	cmyk(80.4%, 17.9%, 0%, 34.1%)
CIE-LAB	lab(53.30, -18.23, -24.07)
CIE-LCH	lch(53.30, 30.19, 232.87°)
OKLab	oklab(59% -0.0743 -0.0675)
OKLCH	oklch(59% 0.1 222.2)
XYZ	xyz(16.7806, 21.3254, 40.2700)
Luminance	0.2133 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#218AA8 #A83F21

analogous

#21A882 #218AA8 #2147A8

triadic

#218AA8 #A8218A #8AA821

tetradic

#218AA8 #8221A8 #A83F21 #47A821

square

#218AA8 #8221A8 #A83F21 #47A821

split-complementary

#218AA8 #A82147 #A88221

monochromatic

#0D3642 #176075 #218AA8 #30B1D6 #63C5E0

Accessibility & contrast

On white

3.99

#218AA8 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.27

#218AA8 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #218AA8

5.27:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##218AA8	#FFFFFF	#000000	##000000
##218AA8	1.00	3.99	5.27	5.27
#FFFFFF	3.99	1.00	21.00	21.00
#000000	5.27	21.00	1.00	1.00
##000000	5.27	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#7987AA

Deuteranopia (green-blind)

#677AA8

Tritanopia (blue-blind)

#009394

Achromatopsia (no color)

#7F7F7F

Design tokens & code

CSS

--color: #218aa8;
/* rgb */ color: rgb(33, 138, 168);
/* oklch */ color: oklch(59.0% 0.100 222.2);

Tailwind

colors: {
  custom: {
    50: '#74acc2',
    500: '#218aa8',
    950: '#000000',
  },
}

SCSS

$custom: #218aa8;
$custom-light: #74acc2;
$custom-dark: #000000;

JSON

{
  "hex": "#218aa8",
  "rgb": {
    "r": 33,
    "g": 138,
    "b": 168
  },
  "hsl": {
    "h": 193.333,
    "s": 67.164,
    "l": 39.412
  },
  "oklch": {
    "l": 0.58995,
    "c": 0.10036,
    "h": 222.2
  },
  "luminance": 0.21327
}

Semantic roles & 50–950 ramp

primary

#218AA8

secondary

#C5765F

accent

#643EEA

background

#F7FAFB

surface

#EEF4F7

border

#C9CED0

text

#0A1012

muted

#7C7F81

Preview Lab

Preview with #218AA8

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

Preview Lab → · Contrast checker → · Palette generator →