#287CA5#287CA5

#287CA5 is a mid, moderate cyan. Relative luminance 0.176; OKLCH L 55.5% C 0.101 H 234.3°. Best body text is #FFFFFF at 4.65:1 contrast (WCAG AA passes).

Color values

HEX	#287CA5
RGB	rgb(40, 124, 165)
HSL	hsl(200, 61%, 40%)
HSV	hsv(200, 76%, 65%)
CMYK	cmyk(75.8%, 24.8%, 0%, 35.3%)
CIE-LAB	lab(48.98, -10.68, -29.02)
CIE-LCH	lch(48.98, 30.92, 249.80°)
OKLab	oklab(55.54% -0.0587 -0.0817)
OKLCH	oklch(55.54% 0.101 234.3)
XYZ	xyz(14.8715, 17.5813, 38.1998)
Luminance	0.1758 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#287CA5 #A55128

analogous

#28A58F #287CA5 #283DA5

triadic

#287CA5 #A5287C #7CA528

tetradic

#287CA5 #8F28A5 #A55128 #3DA528

square

#287CA5 #8F28A5 #A55128 #3DA528

split-complementary

#287CA5 #A5283D #A58F28

monochromatic

#103242 #1C5774 #287CA5 #3B9FCF #6CB7DB

Accessibility & contrast

On white

4.65

#287CA5 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.52

#287CA5 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#FFFFFF on #287CA5

4.65:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##287CA5	#FFFFFF	#000000	##FFFFFF
##287CA5	1.00	4.65	4.52	4.65
#FFFFFF	4.65	1.00	21.00	1.00
#000000	4.52	21.00	1.00	21.00
##FFFFFF	4.65	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#687BA7

Deuteranopia (green-blind)

#576FA4

Tritanopia (blue-blind)

#00878A

Achromatopsia (no color)

#747474

Design tokens & code

CSS

--color: #287ca5;
/* rgb */ color: rgb(40, 124, 165);
/* oklch */ color: oklch(55.5% 0.101 234.3);

Tailwind

colors: {
  custom: {
    50: '#74a1c0',
    500: '#287ca5',
    950: '#000000',
  },
}

SCSS

$custom: #287ca5;
$custom-light: #74a1c0;
$custom-dark: #000000;

JSON

{
  "hex": "#287ca5",
  "rgb": {
    "r": 40,
    "g": 124,
    "b": 165
  },
  "hsl": {
    "h": 199.68,
    "s": 60.976,
    "l": 40.196
  },
  "oklch": {
    "l": 0.5554,
    "c": 0.10061,
    "h": 234.3
  },
  "luminance": 0.17583
}

Semantic roles & 50–950 ramp

primary

#287CA5

secondary

#C28567

accent

#7844E4

background

#F7F9FB

surface

#EEF2F7

border

#C9CCD0

text

#090F12

muted

#7B7E81

Preview Lab

Preview with #287CA5

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

Preview Lab → · Contrast checker → · Palette generator →