#287E9C#287E9C

#287E9C is a mid, moderate cyan. Relative luminance 0.178; OKLCH L 55.6% C 0.092 H 225.7°. Best body text is #FFFFFF at 4.61:1 contrast (WCAG AA passes).

Color values

HEX	#287E9C
RGB	rgb(40, 126, 156)
HSL	hsl(196, 59%, 38%)
HSV	hsv(196, 74%, 61%)
CMYK	cmyk(74.4%, 19.2%, 0%, 38.8%)
CIE-LAB	lab(49.22, -14.97, -23.40)
CIE-LCH	lch(49.22, 27.78, 237.40°)
OKLab	oklab(55.6% -0.064 -0.0656)
OKLCH	oklch(55.6% 0.092 225.7)
XYZ	xyz(14.3342, 17.7715, 34.1208)
Luminance	0.1777 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#287E9C #9C4628

analogous

#289C80 #287E9C #28449C

triadic

#287E9C #9C287E #7E9C28

tetradic

#287E9C #80289C #9C4628 #449C28

square

#287E9C #80289C #9C4628 #449C28

split-complementary

#287E9C #9C2844 #9C8028

monochromatic

#0F2F3B #1C576B #287E9C #36A5CB #67BBD8

Accessibility & contrast

On white

4.61

#287E9C on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.55

#287E9C on #000000

AA ✓AA large ✓AAA ✗

Best text color

#FFFFFF on #287E9C

4.61:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##287E9C	#FFFFFF	#000000	##FFFFFF
##287E9C	1.00	4.61	4.55	4.61
#FFFFFF	4.61	1.00	21.00	1.00
#000000	4.55	21.00	1.00	21.00
##FFFFFF	4.61	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#6E7B9E

Deuteranopia (green-blind)

#5E709C

Tritanopia (blue-blind)

#008788

Achromatopsia (no color)

#757575

Design tokens & code

CSS

--color: #287e9c;
/* rgb */ color: rgb(40, 126, 156);
/* oklch */ color: oklch(55.6% 0.092 225.7);

Tailwind

colors: {
  custom: {
    50: '#73a3b9',
    500: '#287e9c',
    950: '#000000',
  },
}

SCSS

$custom: #287e9c;
$custom-light: #73a3b9;
$custom-dark: #000000;

JSON

{
  "hex": "#287e9c",
  "rgb": {
    "r": 40,
    "g": 126,
    "b": 156
  },
  "hsl": {
    "h": 195.517,
    "s": 59.184,
    "l": 38.431
  },
  "oklch": {
    "l": 0.55599,
    "c": 0.09166,
    "h": 225.7
  },
  "luminance": 0.17773
}

Semantic roles & 50–950 ramp

primary

#287E9C

secondary

#BE7A62

accent

#6E45E2

background

#F7FAFB

surface

#EDF3F6

border

#C8CDD0

text

#090F11

muted

#7B7F80

Preview Lab

Preview with #287E9C

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

Preview Lab → · Contrast checker → · Palette generator →