#228CA4#228CA4

#228CA4 is a mid, moderate cyan. Relative luminance 0.218; OKLCH L 59.3% C 0.097 H 217.2°. Best body text is #000000 at 5.36:1 contrast (WCAG AA passes).

Color values

HEX	#228CA4
RGB	rgb(34, 140, 164)
HSL	hsl(191, 66%, 39%)
HSV	hsv(191, 79%, 64%)
CMYK	cmyk(79.3%, 14.6%, 0%, 35.7%)
CIE-LAB	lab(53.79, -20.56, -21.03)
CIE-LCH	lch(53.79, 29.41, 225.64°)
OKLab	oklab(59.34% -0.0775 -0.0587)
OKLCH	oklch(59.34% 0.097 217.2)
XYZ	xyz(16.7358, 21.7745, 38.4356)
Luminance	0.2178 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#228CA4 #A43A22

analogous

#22A47B #228CA4 #224BA4

triadic

#228CA4 #A4228C #8CA422

tetradic

#228CA4 #7B22A4 #A43A22 #4BA422

square

#228CA4 #7B22A4 #A43A22 #4BA422

split-complementary

#228CA4 #A4224B #A47B22

monochromatic

#0D353F #176171 #228CA4 #2FB6D4 #62C7DE

Accessibility & contrast

On white

3.92

#228CA4 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.36

#228CA4 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #228CA4

5.36:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##228CA4	#FFFFFF	#000000	##000000
##228CA4	1.00	3.92	5.36	5.36
#FFFFFF	3.92	1.00	21.00	21.00
#000000	5.36	21.00	1.00	1.00
##000000	5.36	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#7C88A5

Deuteranopia (green-blind)

#6B7BA4

Tritanopia (blue-blind)

#009494

Achromatopsia (no color)

#818181

Design tokens & code

CSS

--color: #228ca4;
/* rgb */ color: rgb(34, 140, 164);
/* oklch */ color: oklch(59.3% 0.097 217.2);

Tailwind

colors: {
  custom: {
    50: '#74adbf',
    500: '#228ca4',
    950: '#000000',
  },
}

SCSS

$custom: #228ca4;
$custom-light: #74adbf;
$custom-dark: #000000;

JSON

{
  "hex": "#228ca4",
  "rgb": {
    "r": 34,
    "g": 140,
    "b": 164
  },
  "hsl": {
    "h": 191.077,
    "s": 65.657,
    "l": 38.824
  },
  "oklch": {
    "l": 0.59337,
    "c": 0.09725,
    "h": 217.2
  },
  "luminance": 0.21777
}

Semantic roles & 50–950 ramp

primary

#228CA4

secondary

#C4715E

accent

#5E3FE9

background

#F7FAFB

surface

#EEF4F7

border

#C9CED0

text

#091012

muted

#7B7F81

Preview Lab

Preview with #228CA4

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

Preview Lab → · Contrast checker → · Palette generator →