#287BA4#287BA4

#287BA4 is a mid, moderate cyan. Relative luminance 0.173; OKLCH L 55.2% C 0.100 H 234.6°. Best body text is #FFFFFF at 4.71:1 contrast (WCAG AA passes).

Color values

HEX	#287BA4
RGB	rgb(40, 123, 164)
HSL	hsl(200, 61%, 40%)
HSV	hsv(200, 76%, 64%)
CMYK	cmyk(75.6%, 25%, 0%, 35.7%)
CIE-LAB	lab(48.63, -10.46, -28.98)
CIE-LCH	lch(48.63, 30.81, 250.16°)
OKLab	oklab(55.24% -0.058 -0.0816)
OKLCH	oklch(55.24% 0.1 234.6)
XYZ	xyz(14.6562, 17.2956, 37.6807)
Luminance	0.1730 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#287BA4 #A45128

analogous

#28A48F #287BA4 #283DA4

triadic

#287BA4 #A4287B #7BA428

tetradic

#287BA4 #8F28A4 #A45128 #3DA428

square

#287BA4 #8F28A4 #A45128 #3DA428

split-complementary

#287BA4 #A4283D #A48F28

monochromatic

#103142 #1C5673 #287BA4 #3A9ECF #6BB6DB

Accessibility & contrast

On white

4.71

#287BA4 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.46

#287BA4 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #287BA4

4.71:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##287BA4	#FFFFFF	#000000	##FFFFFF
##287BA4	1.00	4.71	4.46	4.71
#FFFFFF	4.71	1.00	21.00	1.00
#000000	4.46	21.00	1.00	21.00
##FFFFFF	4.71	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#677AA6

Deuteranopia (green-blind)

#566EA3

Tritanopia (blue-blind)

#008689

Achromatopsia (no color)

#737373

Design tokens & code

CSS

--color: #287ba4;
/* rgb */ color: rgb(40, 123, 164);
/* oklch */ color: oklch(55.2% 0.100 234.6);

Tailwind

colors: {
  custom: {
    50: '#74a1bf',
    500: '#287ba4',
    950: '#000000',
  },
}

SCSS

$custom: #287ba4;
$custom-light: #74a1bf;
$custom-dark: #000000;

JSON

{
  "hex": "#287ba4",
  "rgb": {
    "r": 40,
    "g": 123,
    "b": 164
  },
  "hsl": {
    "h": 199.839,
    "s": 60.784,
    "l": 40
  },
  "oklch": {
    "l": 0.55244,
    "c": 0.10017,
    "h": 234.6
  },
  "luminance": 0.17297
}

Semantic roles & 50–950 ramp

primary

#287BA4

secondary

#C18466

accent

#7944E4

background

#F7F9FB

surface

#EEF2F7

border

#C9CCD0

text

#090E12

muted

#7B7E81

Preview Lab

Preview with #287BA4

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

Preview Lab → · Contrast checker → · Palette generator →