#287EA1#287EA1

#287EA1 is a mid, moderate cyan. Relative luminance 0.179; OKLCH L 55.8% C 0.096 H 229.6°. Best body text is #000000 at 4.59:1 contrast (WCAG AA passes).

Color values

HEX	#287EA1
RGB	rgb(40, 126, 161)
HSL	hsl(197, 60%, 39%)
HSV	hsv(197, 75%, 63%)
CMYK	cmyk(75.2%, 21.7%, 0%, 36.9%)
CIE-LAB	lab(49.43, -13.23, -25.99)
CIE-LCH	lch(49.43, 29.17, 243.03°)
OKLab	oklab(55.84% -0.0621 -0.073)
OKLCH	oklch(55.84% 0.096 229.6)
XYZ	xyz(14.7663, 17.9443, 36.3967)
Luminance	0.1795 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#287EA1 #A14B28

analogous

#28A188 #287EA1 #2842A1

triadic

#287EA1 #A1287E #7EA128

tetradic

#287EA1 #8828A1 #A14B28 #42A128

square

#287EA1 #8828A1 #A14B28 #42A128

split-complementary

#287EA1 #A12842 #A18828

monochromatic

#10313F #1C5870 #287EA1 #39A3CE #6AB9DA

Accessibility & contrast

On white

4.58

#287EA1 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.59

#287EA1 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #287EA1

4.59:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##287EA1	#FFFFFF	#000000	##000000
##287EA1	1.00	4.58	4.59	4.59
#FFFFFF	4.58	1.00	21.00	21.00
#000000	4.59	21.00	1.00	1.00
##000000	4.59	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#6C7CA3

Deuteranopia (green-blind)

#5C70A1

Tritanopia (blue-blind)

#00888A

Achromatopsia (no color)

#757575

Design tokens & code

CSS

--color: #287ea1;
/* rgb */ color: rgb(40, 126, 161);
/* oklch */ color: oklch(55.8% 0.096 229.6);

Tailwind

colors: {
  custom: {
    50: '#74a3bd',
    500: '#287ea1',
    950: '#000000',
  },
}

SCSS

$custom: #287ea1;
$custom-light: #74a3bd;
$custom-dark: #000000;

JSON

{
  "hex": "#287ea1",
  "rgb": {
    "r": 40,
    "g": 126,
    "b": 161
  },
  "hsl": {
    "h": 197.355,
    "s": 60.199,
    "l": 39.412
  },
  "oklch": {
    "l": 0.55837,
    "c": 0.09587,
    "h": 229.6
  },
  "luminance": 0.17946
}

Semantic roles & 50–950 ramp

primary

#287EA1

secondary

#C07F65

accent

#7244E3

background

#F7FAFB

surface

#EEF3F6

border

#C9CDD0

text

#090F12

muted

#7B7F81

Preview Lab

Preview with #287EA1

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

Preview Lab → · Contrast checker → · Palette generator →