#287EA3#287EA3

#287EA3 is a mid, moderate cyan. Relative luminance 0.180; OKLCH L 55.9% C 0.098 H 231.1°. Best body text is #000000 at 4.60:1 contrast (WCAG AA passes).

Color values

HEX	#287EA3
RGB	rgb(40, 126, 163)
HSL	hsl(198, 61%, 40%)
HSV	hsv(198, 75%, 64%)
CMYK	cmyk(75.5%, 22.7%, 0%, 36.1%)
CIE-LAB	lab(49.51, -12.53, -27.03)
CIE-LCH	lch(49.51, 29.79, 245.13°)
OKLab	oklab(55.93% -0.0614 -0.076)
OKLCH	oklch(55.93% 0.098 231.1)
XYZ	xyz(14.9441, 18.0154, 37.3329)
Luminance	0.1802 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#287EA3 #A34D28

analogous

#28A38B #287EA3 #2840A3

triadic

#287EA3 #A3287E #7EA328

tetradic

#287EA3 #8B28A3 #A34D28 #40A328

square

#287EA3 #8B28A3 #A34D28 #40A328

split-complementary

#287EA3 #A32840 #A38B28

monochromatic

#103241 #1C5872 #287EA3 #3AA2CF #6BB9DB

Accessibility & contrast

On white

4.56

#287EA3 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.60

#287EA3 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #287EA3

4.60:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##287EA3	#FFFFFF	#000000	##000000
##287EA3	1.00	4.56	4.60	4.60
#FFFFFF	4.56	1.00	21.00	21.00
#000000	4.60	21.00	1.00	1.00
##000000	4.60	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#6B7CA5

Deuteranopia (green-blind)

#5B71A2

Tritanopia (blue-blind)

#00888A

Achromatopsia (no color)

#767676

Design tokens & code

CSS

--color: #287ea3;
/* rgb */ color: rgb(40, 126, 163);
/* oklch */ color: oklch(55.9% 0.098 231.1);

Tailwind

colors: {
  custom: {
    50: '#74a3be',
    500: '#287ea3',
    950: '#000000',
  },
}

SCSS

$custom: #287ea3;
$custom-light: #74a3be;
$custom-dark: #000000;

JSON

{
  "hex": "#287ea3",
  "rgb": {
    "r": 40,
    "g": 126,
    "b": 163
  },
  "hsl": {
    "h": 198.049,
    "s": 60.591,
    "l": 39.804
  },
  "oklch": {
    "l": 0.55934,
    "c": 0.09768,
    "h": 231.1
  },
  "luminance": 0.18017
}

Semantic roles & 50–950 ramp

primary

#287EA3

secondary

#C18166

accent

#7444E4

background

#F7FAFB

surface

#EEF3F6

border

#C9CDD0

text

#090F12

muted

#7B7F81

Preview Lab

Preview with #287EA3

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

Preview Lab → · Contrast checker → · Palette generator →