#4288AB#4288AB

#4288AB is a mid, moderate cyan. Relative luminance 0.217; OKLCH L 59.6% C 0.088 H 232.7°. Best body text is #000000 at 5.34:1 contrast (WCAG AA passes).

Color values

HEX	#4288AB
RGB	rgb(66, 136, 171)
HSL	hsl(200, 44%, 46%)
HSV	hsv(200, 61%, 67%)
CMYK	cmyk(61.4%, 20.5%, 0%, 32.9%)
CIE-LAB	lab(53.71, -11.25, -25.09)
CIE-LCH	lch(53.71, 27.50, 245.85°)
OKLab	oklab(59.62% -0.0535 -0.0701)
OKLCH	oklch(59.62% 0.088 232.7)
XYZ	xyz(18.3988, 21.7050, 41.7401)
Luminance	0.2171 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4288AB #AB6542

analogous

#42AB9A #4288AB #4254AB

triadic

#4288AB #AB4288 #88AB42

tetradic

#4288AB #9A42AB #AB6542 #54AB42

square

#4288AB #9A42AB #AB6542 #54AB42

split-complementary

#4288AB #AB4254 #AB9A42

monochromatic

#204253 #31657F #4288AB #66A5C4 #92BFD5

Accessibility & contrast

On white

3.93

#4288AB on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.34

#4288AB on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #4288AB

5.34:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4288AB	#FFFFFF	#000000	##000000
##4288AB	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)

#7786AD

Deuteranopia (green-blind)

#687CAA

Tritanopia (blue-blind)

#009194

Achromatopsia (no color)

#808080

Design tokens & code

CSS

--color: #4288ab;
/* rgb */ color: rgb(66, 136, 171);
/* oklch */ color: oklch(59.6% 0.088 232.7);

Tailwind

colors: {
  custom: {
    50: '#80aac4',
    500: '#4288ab',
    950: '#000000',
  },
}

SCSS

$custom: #4288ab;
$custom-light: #80aac4;
$custom-dark: #000000;

JSON

{
  "hex": "#4288ab",
  "rgb": {
    "r": 66,
    "g": 136,
    "b": 171
  },
  "hsl": {
    "h": 200,
    "s": 44.304,
    "l": 46.471
  },
  "oklch": {
    "l": 0.59617,
    "c": 0.08821,
    "h": 232.7
  },
  "luminance": 0.21707
}

Semantic roles & 50–950 ramp

primary

#4288AB

secondary

#C09B88

accent

#7F54D4

background

#F8FAFC

surface

#EFF4F8

border

#CACED1

text

#0B1012

muted

#7C7F81

Preview Lab

Preview with #4288AB

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

Preview Lab → · Contrast checker → · Palette generator →