#218AAA#218AAA

#218AAA is a mid, moderate cyan. Relative luminance 0.214; OKLCH L 59.1% C 0.102 H 223.8°. Best body text is #000000 at 5.28:1 contrast (WCAG AA passes).

Color values

HEX	#218AAA
RGB	rgb(33, 138, 170)
HSL	hsl(194, 67%, 40%)
HSV	hsv(194, 81%, 67%)
CMYK	cmyk(80.6%, 18.8%, 0%, 33.3%)
CIE-LAB	lab(53.39, -17.54, -25.10)
CIE-LCH	lch(53.39, 30.62, 235.06°)
OKLab	oklab(59.09% -0.0735 -0.0704)
OKLCH	oklch(59.09% 0.102 223.8)
XYZ	xyz(16.9683, 21.4005, 41.2588)
Luminance	0.2140 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#218AAA #AA4121

analogous

#21AA86 #218AAA #2145AA

triadic

#218AAA #AA218A #8AAA21

tetradic

#218AAA #8621AA #AA4121 #45AA21

square

#218AAA #8621AA #AA4121 #45AA21

split-complementary

#218AAA #AA2145 #AA8621

monochromatic

#0D3743 #176077 #218AAA #31B0D7 #64C4E1

Accessibility & contrast

On white

3.98

#218AAA on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.28

#218AAA on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #218AAA

5.28:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##218AAA	#FFFFFF	#000000	##000000
##218AAA	1.00	3.98	5.28	5.28
#FFFFFF	3.98	1.00	21.00	21.00
#000000	5.28	21.00	1.00	1.00
##000000	5.28	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#7887AC

Deuteranopia (green-blind)

#667AAA

Tritanopia (blue-blind)

#009494

Achromatopsia (no color)

#7F7F7F

Design tokens & code

CSS

--color: #218aaa;
/* rgb */ color: rgb(33, 138, 170);
/* oklch */ color: oklch(59.1% 0.102 223.8);

Tailwind

colors: {
  custom: {
    50: '#74acc3',
    500: '#218aaa',
    950: '#000000',
  },
}

SCSS

$custom: #218aaa;
$custom-light: #74acc3;
$custom-dark: #000000;

JSON

{
  "hex": "#218aaa",
  "rgb": {
    "r": 33,
    "g": 138,
    "b": 170
  },
  "hsl": {
    "h": 194.015,
    "s": 67.488,
    "l": 39.804
  },
  "oklch": {
    "l": 0.59087,
    "c": 0.10178,
    "h": 223.8
  },
  "luminance": 0.21403
}

Semantic roles & 50–950 ramp

primary

#218AAA

secondary

#C67861

accent

#663DEA

background

#F7FAFC

surface

#EEF4F8

border

#C9CED1

text

#0A1012

muted

#7C7F81

Preview Lab

Preview with #218AAA

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

Preview Lab → · Contrast checker → · Palette generator →