#287DA6#287DA6

#287DA6 is a mid, moderate cyan. Relative luminance 0.179; OKLCH L 55.8% C 0.101 H 234.1°. Best body text is #FFFFFF at 4.59:1 contrast (WCAG AA passes).

Color values

HEX	#287DA6
RGB	rgb(40, 125, 166)
HSL	hsl(200, 61%, 40%)
HSV	hsv(200, 76%, 65%)
CMYK	cmyk(75.9%, 24.7%, 0%, 34.9%)
CIE-LAB	lab(49.34, -10.89, -29.05)
CIE-LCH	lch(49.34, 31.02, 249.44°)
OKLab	oklab(55.84% -0.0593 -0.0818)
OKLCH	oklch(55.84% 0.101 234.1)
XYZ	xyz(15.0889, 17.8697, 38.7230)
Luminance	0.1787 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#287DA6 #A65128

analogous

#28A690 #287DA6 #283EA6

triadic

#287DA6 #A6287D #7DA628

tetradic

#287DA6 #9028A6 #A65128 #3EA628

square

#287DA6 #9028A6 #A65128 #3EA628

split-complementary

#287DA6 #A6283E #A69028

monochromatic

#103343 #1C5875 #287DA6 #3BA0D0 #6DB8DC

Accessibility & contrast

On white

4.59

#287DA6 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.57

#287DA6 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#FFFFFF on #287DA6

4.59:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##287DA6	#FFFFFF	#000000	##FFFFFF
##287DA6	1.00	4.59	4.57	4.59
#FFFFFF	4.59	1.00	21.00	1.00
#000000	4.57	21.00	1.00	21.00
##FFFFFF	4.59	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#697CA8

Deuteranopia (green-blind)

#5870A5

Tritanopia (blue-blind)

#00888B

Achromatopsia (no color)

#757575

Design tokens & code

CSS

--color: #287da6;
/* rgb */ color: rgb(40, 125, 166);
/* oklch */ color: oklch(55.8% 0.101 234.1);

Tailwind

colors: {
  custom: {
    50: '#74a2c0',
    500: '#287da6',
    950: '#000000',
  },
}

SCSS

$custom: #287da6;
$custom-light: #74a2c0;
$custom-dark: #000000;

JSON

{
  "hex": "#287da6",
  "rgb": {
    "r": 40,
    "g": 125,
    "b": 166
  },
  "hsl": {
    "h": 199.524,
    "s": 61.165,
    "l": 40.392
  },
  "oklch": {
    "l": 0.55837,
    "c": 0.10105,
    "h": 234.1
  },
  "luminance": 0.17872
}

Semantic roles & 50–950 ramp

primary

#287DA6

secondary

#C28567

accent

#7844E4

background

#F7F9FB

surface

#EEF2F7

border

#C9CCD0

text

#090F12

muted

#7B7E81

Preview Lab

Preview with #287DA6

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

Preview Lab → · Contrast checker → · Palette generator →