#4287AA#4287AA

#4287AA is a mid, moderate cyan. Relative luminance 0.214; OKLCH L 59.3% C 0.088 H 233.0°. Best body text is #000000 at 5.28:1 contrast (WCAG AA passes).

Color values

HEX	#4287AA
RGB	rgb(66, 135, 170)
HSL	hsl(200, 44%, 46%)
HSV	hsv(200, 61%, 67%)
CMYK	cmyk(61.2%, 20.6%, 0%, 33.3%)
CIE-LAB	lab(53.37, -11.01, -25.05)
CIE-LCH	lch(53.37, 27.36, 246.27°)
OKLab	oklab(59.33% -0.0527 -0.07)
OKLCH	oklch(59.33% 0.088 233)
XYZ	xyz(18.1637, 21.3867, 41.1932)
Luminance	0.2139 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4287AA #AA6542

analogous

#42AA99 #4287AA #4253AA

triadic

#4287AA #AA4287 #87AA42

tetradic

#4287AA #9942AA #AA6542 #53AA42

square

#4287AA #9942AA #AA6542 #53AA42

split-complementary

#4287AA #AA4253 #AA9942

monochromatic

#204152 #31647E #4287AA #66A4C3 #92BED5

Accessibility & contrast

On white

3.98

#4287AA on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.28

#4287AA on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #4287AA

5.28:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4287AA	#FFFFFF	#000000	##000000
##4287AA	1.00	3.98	5.28	5.28
#FFFFFF	3.98	1.00	21.00	21.00
#000000	5.28	21.00	1.00	1.00
##000000	5.28	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#7686AC

Deuteranopia (green-blind)

#677BA9

Tritanopia (blue-blind)

#009093

Achromatopsia (no color)

#7F7F7F

Design tokens & code

CSS

--color: #4287aa;
/* rgb */ color: rgb(66, 135, 170);
/* oklch */ color: oklch(59.3% 0.088 233.0);

Tailwind

colors: {
  custom: {
    50: '#80aac3',
    500: '#4287aa',
    950: '#000000',
  },
}

SCSS

$custom: #4287aa;
$custom-light: #80aac3;
$custom-dark: #000000;

JSON

{
  "hex": "#4287aa",
  "rgb": {
    "r": 66,
    "g": 135,
    "b": 170
  },
  "hsl": {
    "h": 200.192,
    "s": 44.068,
    "l": 46.275
  },
  "oklch": {
    "l": 0.59331,
    "c": 0.08766,
    "h": 233
  },
  "luminance": 0.21388
}

Semantic roles & 50–950 ramp

primary

#4287AA

secondary

#C09B88

accent

#7F54D4

background

#F8FAFC

surface

#EFF4F8

border

#CACED1

text

#0B1012

muted

#7C7F81

Preview Lab

Preview with #4287AA

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

Preview Lab → · Contrast checker → · Palette generator →