#287BA3#287BA3

#287BA3 is a mid, moderate cyan. Relative luminance 0.173; OKLCH L 55.2% C 0.099 H 233.9°. Best body text is #FFFFFF at 4.72:1 contrast (WCAG AA passes).

Color values

HEX	#287BA3
RGB	rgb(40, 123, 163)
HSL	hsl(200, 61%, 40%)
HSV	hsv(200, 75%, 64%)
CMYK	cmyk(75.5%, 24.5%, 0%, 36.1%)
CIE-LAB	lab(48.59, -10.82, -28.47)
CIE-LCH	lch(48.59, 30.46, 249.20°)
OKLab	oklab(55.19% -0.0584 -0.0802)
OKLCH	oklch(55.19% 0.099 233.9)
XYZ	xyz(14.5662, 17.2597, 37.2070)
Luminance	0.1726 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#287BA3 #A35028

analogous

#28A38D #287BA3 #283EA3

triadic

#287BA3 #A3287B #7BA328

tetradic

#287BA3 #8D28A3 #A35028 #3EA328

square

#287BA3 #8D28A3 #A35028 #3EA328

split-complementary

#287BA3 #A3283E #A38D28

monochromatic

#103141 #1C5672 #287BA3 #3A9ECF #6BB6DB

Accessibility & contrast

On white

4.72

#287BA3 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.45

#287BA3 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #287BA3

4.72:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##287BA3	#FFFFFF	#000000	##FFFFFF
##287BA3	1.00	4.72	4.45	4.72
#FFFFFF	4.72	1.00	21.00	1.00
#000000	4.45	21.00	1.00	21.00
##FFFFFF	4.72	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#677AA5

Deuteranopia (green-blind)

#576EA2

Tritanopia (blue-blind)

#008689

Achromatopsia (no color)

#737373

Design tokens & code

CSS

--color: #287ba3;
/* rgb */ color: rgb(40, 123, 163);
/* oklch */ color: oklch(55.2% 0.099 233.9);

Tailwind

colors: {
  custom: {
    50: '#74a1be',
    500: '#287ba3',
    950: '#000000',
  },
}

SCSS

$custom: #287ba3;
$custom-light: #74a1be;
$custom-dark: #000000;

JSON

{
  "hex": "#287ba3",
  "rgb": {
    "r": 40,
    "g": 123,
    "b": 163
  },
  "hsl": {
    "h": 199.512,
    "s": 60.591,
    "l": 39.804
  },
  "oklch": {
    "l": 0.55193,
    "c": 0.09917,
    "h": 233.9
  },
  "luminance": 0.17261
}

Semantic roles & 50–950 ramp

primary

#287BA3

secondary

#C18366

accent

#7844E4

background

#F7F9FB

surface

#EEF2F6

border

#C9CCD0

text

#090E12

muted

#7B7E81

Preview Lab

Preview with #287BA3

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

Preview Lab → · Contrast checker → · Palette generator →