#287BA5#287BA5

#287BA5 is a mid, moderate cyan. Relative luminance 0.173; OKLCH L 55.3% C 0.101 H 235.3°. Best body text is #FFFFFF at 4.70:1 contrast (WCAG AA passes).

Color values

HEX	#287BA5
RGB	rgb(40, 123, 165)
HSL	hsl(200, 61%, 40%)
HSV	hsv(200, 76%, 65%)
CMYK	cmyk(75.8%, 25.5%, 0%, 35.3%)
CIE-LAB	lab(48.68, -10.10, -29.50)
CIE-LCH	lch(48.68, 31.18, 251.10°)
OKLab	oklab(55.29% -0.0577 -0.0831)
OKLCH	oklch(55.29% 0.101 235.3)
XYZ	xyz(14.7469, 17.3319, 38.1582)
Luminance	0.1733 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#287BA5 #A55228

analogous

#28A590 #287BA5 #283CA5

triadic

#287BA5 #A5287B #7BA528

tetradic

#287BA5 #9028A5 #A55228 #3CA528

square

#287BA5 #9028A5 #A55228 #3CA528

split-complementary

#287BA5 #A5283C #A59028

monochromatic

#103242 #1C5674 #287BA5 #3B9DCF #6CB6DB

Accessibility & contrast

On white

4.70

#287BA5 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.47

#287BA5 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #287BA5

4.70:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##287BA5	#FFFFFF	#000000	##FFFFFF
##287BA5	1.00	4.70	4.47	4.70
#FFFFFF	4.70	1.00	21.00	1.00
#000000	4.47	21.00	1.00	21.00
##FFFFFF	4.70	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#677AA7

Deuteranopia (green-blind)

#566EA4

Tritanopia (blue-blind)

#008689

Achromatopsia (no color)

#747474

Design tokens & code

CSS

--color: #287ba5;
/* rgb */ color: rgb(40, 123, 165);
/* oklch */ color: oklch(55.3% 0.101 235.3);

Tailwind

colors: {
  custom: {
    50: '#74a1c0',
    500: '#287ba5',
    950: '#000000',
  },
}

SCSS

$custom: #287ba5;
$custom-light: #74a1c0;
$custom-dark: #000000;

JSON

{
  "hex": "#287ba5",
  "rgb": {
    "r": 40,
    "g": 123,
    "b": 165
  },
  "hsl": {
    "h": 200.16,
    "s": 60.976,
    "l": 40.196
  },
  "oklch": {
    "l": 0.55294,
    "c": 0.10118,
    "h": 235.3
  },
  "luminance": 0.17334
}

Semantic roles & 50–950 ramp

primary

#287BA5

secondary

#C28567

accent

#7A44E4

background

#F7F9FB

surface

#EEF2F7

border

#C9CCD0

text

#090E12

muted

#7B7E81

Preview Lab

Preview with #287BA5

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

Preview Lab → · Contrast checker → · Palette generator →