#287FAB#287FAB

#287FAB is a mid, moderate cyan. Relative luminance 0.186; OKLCH L 56.6% C 0.105 H 235.4°. Best body text is #000000 at 4.71:1 contrast (WCAG AA passes).

Color values

HEX	#287FAB
RGB	rgb(40, 127, 171)
HSL	hsl(200, 62%, 41%)
HSV	hsv(200, 77%, 67%)
CMYK	cmyk(76.6%, 25.7%, 0%, 32.9%)
CIE-LAB	lab(50.18, -10.26, -30.64)
CIE-LCH	lch(50.18, 32.31, 251.49°)
OKLab	oklab(56.58% -0.0595 -0.0864)
OKLCH	oklch(56.58% 0.105 235.4)
XYZ	xyz(15.8122, 18.5683, 41.2708)
Luminance	0.1857 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#287FAB #AB5428

analogous

#28AB96 #287FAB #283EAB

triadic

#287FAB #AB287F #7FAB28

tetradic

#287FAB #9628AB #AB5428 #3EAB28

square

#287FAB #9628AB #AB5428 #3EAB28

split-complementary

#287FAB #AB283E #AB9628

monochromatic

#113548 #1C5A79 #287FAB #3EA0D2 #70B9DE

Accessibility & contrast

On white

4.45

#287FAB on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.71

#287FAB on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #287FAB

4.71:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##287FAB	#FFFFFF	#000000	##000000
##287FAB	1.00	4.45	4.71	4.71
#FFFFFF	4.45	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)

#6A7EAD

Deuteranopia (green-blind)

#5872AA

Tritanopia (blue-blind)

#008A8E

Achromatopsia (no color)

#777777

Design tokens & code

CSS

--color: #287fab;
/* rgb */ color: rgb(40, 127, 171);
/* oklch */ color: oklch(56.6% 0.105 235.4);

Tailwind

colors: {
  custom: {
    50: '#75a4c4',
    500: '#287fab',
    950: '#000000',
  },
}

SCSS

$custom: #287fab;
$custom-light: #75a4c4;
$custom-dark: #000000;

JSON

{
  "hex": "#287fab",
  "rgb": {
    "r": 40,
    "g": 127,
    "b": 171
  },
  "hsl": {
    "h": 200.153,
    "s": 62.085,
    "l": 41.373
  },
  "oklch": {
    "l": 0.5658,
    "c": 0.10491,
    "h": 235.4
  },
  "luminance": 0.1857
}

Semantic roles & 50–950 ramp

primary

#287FAB

secondary

#C4896A

accent

#7943E5

background

#F7FAFC

surface

#EEF4F8

border

#C9CED1

text

#0A0F12

muted

#7C7F81

Preview Lab

Preview with #287FAB

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

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