#288CAE#288CAE

#288CAE is a mid, moderate cyan. Relative luminance 0.223; OKLCH L 59.9% C 0.102 H 225.7°. Best body text is #000000 at 5.45:1 contrast (WCAG AA passes).

Color values

HEX	#288CAE
RGB	rgb(40, 140, 174)
HSL	hsl(195, 63%, 42%)
HSV	hsv(195, 77%, 68%)
CMYK	cmyk(77%, 19.5%, 0%, 31.8%)
CIE-LAB	lab(54.30, -16.48, -25.97)
CIE-LCH	lch(54.30, 30.76, 237.59°)
OKLab	oklab(59.92% -0.0712 -0.0728)
OKLCH	oklch(59.92% 0.102 225.7)
XYZ	xyz(17.8900, 22.2611, 43.3901)
Luminance	0.2226 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#288CAE #AE4A28

analogous

#28AE8D #288CAE #2849AE

triadic

#288CAE #AE288C #8CAE28

tetradic

#288CAE #8D28AE #AE4A28 #49AE28

square

#288CAE #8D28AE #AE4A28 #49AE28

split-complementary

#288CAE #AE2849 #AE8D28

monochromatic

#113C4A #1D647C #288CAE #40AED3 #72C3DF

Accessibility & contrast

On white

3.85

#288CAE on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.45

#288CAE on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #288CAE

5.45:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##288CAE	#FFFFFF	#000000	##000000
##288CAE	1.00	3.85	5.45	5.45
#FFFFFF	3.85	1.00	21.00	21.00
#000000	5.45	21.00	1.00	1.00
##000000	5.45	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#7989B0

Deuteranopia (green-blind)

#677CAE

Tritanopia (blue-blind)

#009697

Achromatopsia (no color)

#828282

Design tokens & code

CSS

--color: #288cae;
/* rgb */ color: rgb(40, 140, 174);
/* oklch */ color: oklch(59.9% 0.102 225.7);

Tailwind

colors: {
  custom: {
    50: '#77adc6',
    500: '#288cae',
    950: '#000000',
  },
}

SCSS

$custom: #288cae;
$custom-light: #77adc6;
$custom-dark: #000000;

JSON

{
  "hex": "#288cae",
  "rgb": {
    "r": 40,
    "g": 140,
    "b": 174
  },
  "hsl": {
    "h": 195.224,
    "s": 62.617,
    "l": 41.961
  },
  "oklch": {
    "l": 0.59917,
    "c": 0.10183,
    "h": 225.7
  },
  "luminance": 0.22263
}

Semantic roles & 50–950 ramp

primary

#288CAE

secondary

#C6836C

accent

#6C42E6

background

#F7FAFC

surface

#EEF4F8

border

#C9CED1

text

#0A1013

muted

#7C7F82

Preview Lab

Preview with #288CAE

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

Preview Lab → · Contrast checker → · Palette generator →