#288AAE#288AAE

#288AAE is a mid, moderate cyan. Relative luminance 0.217; OKLCH L 59.4% C 0.102 H 227.5°. Best body text is #000000 at 5.34:1 contrast (WCAG AA passes).

Color values

HEX	#288AAE
RGB	rgb(40, 138, 174)
HSL	hsl(196, 63%, 42%)
HSV	hsv(196, 77%, 68%)
CMYK	cmyk(77%, 20.7%, 0%, 31.8%)
CIE-LAB	lab(53.69, -15.39, -26.92)
CIE-LCH	lch(53.69, 31.00, 240.24°)
OKLab	oklab(59.42% -0.0692 -0.0756)
OKLCH	oklch(59.42% 0.102 227.5)
XYZ	xyz(17.6004, 21.6819, 43.2936)
Luminance	0.2168 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#288AAE #AE4C28

analogous

#28AE8F #288AAE #2847AE

triadic

#288AAE #AE288A #8AAE28

tetradic

#288AAE #8F28AE #AE4C28 #47AE28

square

#288AAE #8F28AE #AE4C28 #47AE28

split-complementary

#288AAE #AE2847 #AE8F28

monochromatic

#113B4A #1D637C #288AAE #40ACD3 #72C1DF

Accessibility & contrast

On white

3.93

#288AAE on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.34

#288AAE on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #288AAE

5.34:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##288AAE	#FFFFFF	#000000	##000000
##288AAE	1.00	3.93	5.34	5.34
#FFFFFF	3.93	1.00	21.00	21.00
#000000	5.34	21.00	1.00	1.00
##000000	5.34	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#7788B0

Deuteranopia (green-blind)

#657BAE

Tritanopia (blue-blind)

#009496

Achromatopsia (no color)

#808080

Design tokens & code

CSS

--color: #288aae;
/* rgb */ color: rgb(40, 138, 174);
/* oklch */ color: oklch(59.4% 0.102 227.5);

Tailwind

colors: {
  custom: {
    50: '#77acc6',
    500: '#288aae',
    950: '#000000',
  },
}

SCSS

$custom: #288aae;
$custom-light: #77acc6;
$custom-dark: #000000;

JSON

{
  "hex": "#288aae",
  "rgb": {
    "r": 40,
    "g": 138,
    "b": 174
  },
  "hsl": {
    "h": 196.119,
    "s": 62.617,
    "l": 41.961
  },
  "oklch": {
    "l": 0.59424,
    "c": 0.10247,
    "h": 227.5
  },
  "luminance": 0.21684
}

Semantic roles & 50–950 ramp

primary

#288AAE

secondary

#C6846C

accent

#6E42E6

background

#F7FAFC

surface

#EEF4F8

border

#C9CED1

text

#0A1013

muted

#7C7F82

Preview Lab

Preview with #288AAE

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

Preview Lab → · Contrast checker → · Palette generator →