#287EA5#287EA5

#287EA5 is a mid, moderate cyan. Relative luminance 0.181; OKLCH L 56.0% C 0.100 H 232.5°. Best body text is #000000 at 4.62:1 contrast (WCAG AA passes).

Color values

HEX	#287EA5
RGB	rgb(40, 126, 165)
HSL	hsl(199, 61%, 40%)
HSV	hsv(199, 76%, 65%)
CMYK	cmyk(75.8%, 23.6%, 0%, 35.3%)
CIE-LAB	lab(49.60, -11.82, -28.05)
CIE-LCH	lch(49.60, 30.44, 247.15°)
OKLab	oklab(56.03% -0.0606 -0.0789)
OKLCH	oklch(56.03% 0.1 232.5)
XYZ	xyz(15.1247, 18.0877, 38.2842)
Luminance	0.1809 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#287EA5 #A54F28

analogous

#28A58D #287EA5 #283FA5

triadic

#287EA5 #A5287E #7EA528

tetradic

#287EA5 #8D28A5 #A54F28 #3FA528

square

#287EA5 #8D28A5 #A54F28 #3FA528

split-complementary

#287EA5 #A5283F #A58D28

monochromatic

#103342 #1C5874 #287EA5 #3BA1CF #6CB9DB

Accessibility & contrast

On white

4.55

#287EA5 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.62

#287EA5 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #287EA5

4.62:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##287EA5	#FFFFFF	#000000	##000000
##287EA5	1.00	4.55	4.62	4.62
#FFFFFF	4.55	1.00	21.00	21.00
#000000	4.62	21.00	1.00	1.00
##000000	4.62	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#6B7DA7

Deuteranopia (green-blind)

#5A71A4

Tritanopia (blue-blind)

#00888B

Achromatopsia (no color)

#767676

Design tokens & code

CSS

--color: #287ea5;
/* rgb */ color: rgb(40, 126, 165);
/* oklch */ color: oklch(56.0% 0.100 232.5);

Tailwind

colors: {
  custom: {
    50: '#74a3c0',
    500: '#287ea5',
    950: '#000000',
  },
}

SCSS

$custom: #287ea5;
$custom-light: #74a3c0;
$custom-dark: #000000;

JSON

{
  "hex": "#287ea5",
  "rgb": {
    "r": 40,
    "g": 126,
    "b": 165
  },
  "hsl": {
    "h": 198.72,
    "s": 60.976,
    "l": 40.196
  },
  "oklch": {
    "l": 0.56033,
    "c": 0.09955,
    "h": 232.5
  },
  "luminance": 0.18089
}

Semantic roles & 50–950 ramp

primary

#287EA5

secondary

#C28367

accent

#7644E4

background

#F7FAFB

surface

#EEF3F7

border

#C9CDD0

text

#090F12

muted

#7B7F81

Preview Lab

Preview with #287EA5

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

Preview Lab → · Contrast checker → · Palette generator →