#218AA6#218AA6

#218AA6 is a mid, moderate cyan. Relative luminance 0.213; OKLCH L 58.9% C 0.099 H 220.7°. Best body text is #000000 at 5.25:1 contrast (WCAG AA passes).

Color values

HEX	#218AA6
RGB	rgb(33, 138, 166)
HSL	hsl(193, 67%, 39%)
HSV	hsv(193, 80%, 65%)
CMYK	cmyk(80.1%, 16.9%, 0%, 34.9%)
CIE-LAB	lab(53.22, -18.92, -23.04)
CIE-LCH	lch(53.22, 29.81, 230.62°)
OKLab	oklab(58.9% -0.0751 -0.0645)
OKLCH	oklch(58.9% 0.099 220.7)
XYZ	xyz(16.5957, 21.2514, 39.2963)
Luminance	0.2125 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#218AA6 #A63D21

analogous

#21A680 #218AA6 #2147A6

triadic

#218AA6 #A6218A #8AA621

tetradic

#218AA6 #8021A6 #A63D21 #47A621

square

#218AA6 #8021A6 #A63D21 #47A621

split-complementary

#218AA6 #A62147 #A68021

monochromatic

#0D3540 #176073 #218AA6 #2FB2D6 #62C5E0

Accessibility & contrast

On white

4.00

#218AA6 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.25

#218AA6 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #218AA6

5.25:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##218AA6	#FFFFFF	#000000	##000000
##218AA6	1.00	4.00	5.25	5.25
#FFFFFF	4.00	1.00	21.00	21.00
#000000	5.25	21.00	1.00	1.00
##000000	5.25	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#7986A7

Deuteranopia (green-blind)

#687AA6

Tritanopia (blue-blind)

#009393

Achromatopsia (no color)

#7F7F7F

Design tokens & code

CSS

--color: #218aa6;
/* rgb */ color: rgb(33, 138, 166);
/* oklch */ color: oklch(58.9% 0.099 220.7);

Tailwind

colors: {
  custom: {
    50: '#73acc0',
    500: '#218aa6',
    950: '#000000',
  },
}

SCSS

$custom: #218aa6;
$custom-light: #73acc0;
$custom-dark: #000000;

JSON

{
  "hex": "#218aa6",
  "rgb": {
    "r": 33,
    "g": 138,
    "b": 166
  },
  "hsl": {
    "h": 192.632,
    "s": 66.834,
    "l": 39.02
  },
  "oklch": {
    "l": 0.58904,
    "c": 0.099,
    "h": 220.7
  },
  "luminance": 0.21253
}

Semantic roles & 50–950 ramp

primary

#218AA6

secondary

#C5745E

accent

#623EEA

background

#F7FAFB

surface

#EEF4F7

border

#C9CED0

text

#091012

muted

#7B7F81

Preview Lab

Preview with #218AA6

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

Preview Lab → · Contrast checker → · Palette generator →