#287EB1#287EB1

#287EB1 is a mid, moderate cyan. Relative luminance 0.185; OKLCH L 56.6% C 0.112 H 239.7°. Best body text is #000000 at 4.71:1 contrast (WCAG AA passes).

Color values

HEX	#287EB1
RGB	rgb(40, 126, 177)
HSL	hsl(202, 63%, 43%)
HSV	hsv(202, 77%, 69%)
CMYK	cmyk(77.4%, 28.8%, 0%, 30.6%)
CIE-LAB	lab(50.15, -7.52, -34.16)
CIE-LCH	lch(50.15, 34.97, 257.58°)
OKLab	oklab(56.65% -0.0565 -0.0966)
OKLCH	oklch(56.65% 0.112 239.7)
XYZ	xyz(16.2686, 18.5452, 44.3086)
Luminance	0.1855 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#287EB1 #B15B28

analogous

#28B1A0 #287EB1 #2839B1

triadic

#287EB1 #B1287E #7EB128

tetradic

#287EB1 #A028B1 #B15B28 #39B128

square

#287EB1 #A028B1 #B15B28 #39B128

split-complementary

#287EB1 #B12839 #B1A028

monochromatic

#11374D #1D5A7F #287EB1 #429ED4 #74B7E0

Accessibility & contrast

On white

4.46

#287EB1 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.71

#287EB1 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #287EB1

4.71:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##287EB1	#FFFFFF	#000000	##000000
##287EB1	1.00	4.46	4.71	4.71
#FFFFFF	4.46	1.00	21.00	21.00
#000000	4.71	21.00	1.00	1.00
##000000	4.71	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#667EB3

Deuteranopia (green-blind)

#5372B0

Tritanopia (blue-blind)

#008B90

Achromatopsia (no color)

#777777

Design tokens & code

CSS

--color: #287eb1;
/* rgb */ color: rgb(40, 126, 177);
/* oklch */ color: oklch(56.6% 0.112 239.7);

Tailwind

colors: {
  custom: {
    50: '#76a3c8',
    500: '#287eb1',
    950: '#000000',
  },
}

SCSS

$custom: #287eb1;
$custom-light: #76a3c8;
$custom-dark: #000000;

JSON

{
  "hex": "#287eb1",
  "rgb": {
    "r": 40,
    "g": 126,
    "b": 177
  },
  "hsl": {
    "h": 202.336,
    "s": 63.134,
    "l": 42.549
  },
  "oklch": {
    "l": 0.5665,
    "c": 0.11192,
    "h": 239.7
  },
  "luminance": 0.18547
}

Semantic roles & 50–950 ramp

primary

#287EB1

secondary

#C78F6E

accent

#7F42E6

background

#F7FAFC

surface

#EEF3F8

border

#C9CDD1

text

#0A0F13

muted

#7C7F82

Preview Lab

Preview with #287EB1

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

Preview Lab → · Contrast checker → · Palette generator →