#288CAC#288CAC

#288CAC is a mid, moderate cyan. Relative luminance 0.222; OKLCH L 59.8% C 0.100 H 224.2°. Best body text is #000000 at 5.44:1 contrast (WCAG AA passes).

Color values

HEX#288CAC
RGBrgb(40, 140, 172)
HSLhsl(195, 62%, 42%)
HSVhsv(195, 77%, 67%)
CMYKcmyk(76.7%, 18.6%, 0%, 32.5%)
CIE-LABlab(54.22, -17.17, -24.94)
CIE-LCHlch(54.22, 30.28, 235.46°)
OKLaboklab(59.82% -0.0719 -0.0699)
OKLCHoklch(59.82% 0.1 224.2)
XYZxyz(17.6965, 22.1837, 42.3709)
Luminance0.2219 (WCAG relative)
Temperaturecool
Familycyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#288CAC #AC4828
analogous
#28AC8A #288CAC #284AAC
triadic
#288CAC #AC288C #8CAC28
tetradic
#288CAC #8A28AC #AC4828 #4AAC28
square
#288CAC #8A28AC #AC4828 #4AAC28
split-complementary
#288CAC #AC284A #AC8A28
monochromatic
#113B49 #1C647A #288CAC #3FAFD2 #71C3DE

Accessibility & contrast

On white

3.86
#288CAC on #FFFFFF
AA ✗AA large ✓AAA ✗

On black

5.44
#288CAC on #000000
AA ✓AA large ✓AAA ✗

Best text color

#000000 on #288CAC
5.44:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##288CAC#FFFFFF#000000##000000
##288CAC1.003.865.445.44
#FFFFFF3.861.0021.0021.00
#0000005.4421.001.001.00
##0000005.4421.001.001.00

Color blindness preview

Protanopia (red-blind)
#7A89AE
Deuteranopia (green-blind)
#687CAC
Tritanopia (blue-blind)
#009696
Achromatopsia (no color)
#828282

Design tokens & code

CSS
--color: #288cac;
/* rgb */ color: rgb(40, 140, 172);
/* oklch */ color: oklch(59.8% 0.100 224.2);
Tailwind
colors: {
  custom: {
    50: '#76adc4',
    500: '#288cac',
    950: '#000000',
  },
}
SCSS
$custom: #288cac;
$custom-light: #76adc4;
$custom-dark: #000000;
JSON
{
  "hex": "#288cac",
  "rgb": {
    "r": 40,
    "g": 140,
    "b": 172
  },
  "hsl": {
    "h": 194.545,
    "s": 62.264,
    "l": 41.569
  },
  "oklch": {
    "l": 0.59824,
    "c": 0.10031,
    "h": 224.2
  },
  "luminance": 0.22186
}

Semantic roles & 50–950 ramp

primary
#288CAC
secondary
#C5816B
accent
#6A42E5
background
#F7FAFC
surface
#EEF4F8
border
#C9CED1
text
#0A1012
muted
#7C7F81

Preview Lab

Preview with #288CAC

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

Preview Lab → · Contrast checker → · Palette generator →

#288CAC Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva