#287DA1#287DA1

#287DA1 is a mid, moderate cyan. Relative luminance 0.177; OKLCH L 55.6% C 0.096 H 230.6°. Best body text is #FFFFFF at 4.63:1 contrast (WCAG AA passes).

Color values

HEX	#287DA1
RGB	rgb(40, 125, 161)
HSL	hsl(198, 60%, 39%)
HSV	hsv(198, 75%, 63%)
CMYK	cmyk(75.2%, 22.4%, 0%, 36.9%)
CIE-LAB	lab(49.12, -12.66, -26.48)
CIE-LCH	lch(49.12, 29.35, 244.44°)
OKLab	oklab(55.59% -0.0611 -0.0744)
OKLCH	oklch(55.59% 0.096 230.6)
XYZ	xyz(14.6391, 17.6898, 36.3543)
Luminance	0.1769 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#287DA1 #A14C28

analogous

#28A189 #287DA1 #2841A1

triadic

#287DA1 #A1287D #7DA128

tetradic

#287DA1 #8928A1 #A14C28 #41A128

square

#287DA1 #8928A1 #A14C28 #41A128

split-complementary

#287DA1 #A12841 #A18928

monochromatic

#10313F #1C5770 #287DA1 #39A1CE #6AB8DA

Accessibility & contrast

On white

4.63

#287DA1 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.54

#287DA1 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#FFFFFF on #287DA1

4.63:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##287DA1	#FFFFFF	#000000	##FFFFFF
##287DA1	1.00	4.63	4.54	4.63
#FFFFFF	4.63	1.00	21.00	1.00
#000000	4.54	21.00	1.00	21.00
##FFFFFF	4.63	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#6B7BA3

Deuteranopia (green-blind)

#5A70A0

Tritanopia (blue-blind)

#008789

Achromatopsia (no color)

#757575

Design tokens & code

CSS

--color: #287da1;
/* rgb */ color: rgb(40, 125, 161);
/* oklch */ color: oklch(55.6% 0.096 230.6);

Tailwind

colors: {
  custom: {
    50: '#74a2bd',
    500: '#287da1',
    950: '#000000',
  },
}

SCSS

$custom: #287da1;
$custom-light: #74a2bd;
$custom-dark: #000000;

JSON

{
  "hex": "#287da1",
  "rgb": {
    "r": 40,
    "g": 125,
    "b": 161
  },
  "hsl": {
    "h": 197.851,
    "s": 60.199,
    "l": 39.412
  },
  "oklch": {
    "l": 0.55589,
    "c": 0.09629,
    "h": 230.6
  },
  "luminance": 0.17692
}

Semantic roles & 50–950 ramp

primary

#287DA1

secondary

#C08065

accent

#7444E3

background

#F7FAFB

surface

#EEF3F6

border

#C9CDD0

text

#090F12

muted

#7B7F81

Preview Lab

Preview with #287DA1

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

Preview Lab → · Contrast checker → · Palette generator →