#228CA5#228CA5

#228CA5 is a mid, moderate cyan. Relative luminance 0.218; OKLCH L 59.4% C 0.098 H 218.0°. Best body text is #000000 at 5.36:1 contrast (WCAG AA passes).

Color values

HEX	#228CA5
RGB	rgb(34, 140, 165)
HSL	hsl(191, 66%, 39%)
HSV	hsv(191, 79%, 65%)
CMYK	cmyk(79.4%, 15.2%, 0%, 35.3%)
CIE-LAB	lab(53.83, -20.22, -21.54)
CIE-LCH	lch(53.83, 29.55, 226.81°)
OKLab	oklab(59.38% -0.0771 -0.0602)
OKLCH	oklch(59.38% 0.098 218)
XYZ	xyz(16.8264, 21.8108, 38.9131)
Luminance	0.2181 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#228CA5 #A53B22

analogous

#22A57D #228CA5 #224BA5

triadic

#228CA5 #A5228C #8CA522

tetradic

#228CA5 #7D22A5 #A53B22 #4BA522

square

#228CA5 #7D22A5 #A53B22 #4BA522

split-complementary

#228CA5 #A5224B #A57D22

monochromatic

#0D3640 #186172 #228CA5 #30B5D4 #63C7DF

Accessibility & contrast

On white

3.92

#228CA5 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.36

#228CA5 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #228CA5

5.36:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##228CA5	#FFFFFF	#000000	##000000
##228CA5	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)

#7C88A6

Deuteranopia (green-blind)

#6B7BA5

Tritanopia (blue-blind)

#009594

Achromatopsia (no color)

#818181

Design tokens & code

CSS

--color: #228ca5;
/* rgb */ color: rgb(34, 140, 165);
/* oklch */ color: oklch(59.4% 0.098 218.0);

Tailwind

colors: {
  custom: {
    50: '#74adbf',
    500: '#228ca5',
    950: '#000000',
  },
}

SCSS

$custom: #228ca5;
$custom-light: #74adbf;
$custom-dark: #000000;

JSON

{
  "hex": "#228ca5",
  "rgb": {
    "r": 34,
    "g": 140,
    "b": 165
  },
  "hsl": {
    "h": 191.45,
    "s": 65.829,
    "l": 39.02
  },
  "oklch": {
    "l": 0.59381,
    "c": 0.09783,
    "h": 218
  },
  "luminance": 0.21813
}

Semantic roles & 50–950 ramp

primary

#228CA5

secondary

#C4725F

accent

#5F3FE9

background

#F7FAFB

surface

#EEF4F7

border

#C9CED0

text

#0A1012

muted

#7C7F81

Preview Lab

Preview with #228CA5

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

Preview Lab → · Contrast checker → · Palette generator →