#287E9E#287E9E

#287E9E is a mid, moderate cyan. Relative luminance 0.178; OKLCH L 55.7% C 0.093 H 227.3°. Best body text is #FFFFFF at 4.60:1 contrast (WCAG AA passes).

Color values

HEX	#287E9E
RGB	rgb(40, 126, 158)
HSL	hsl(196, 60%, 39%)
HSV	hsv(196, 75%, 62%)
CMYK	cmyk(74.7%, 20.3%, 0%, 38%)
CIE-LAB	lab(49.30, -14.27, -24.44)
CIE-LCH	lch(49.30, 28.30, 239.71°)
OKLab	oklab(55.69% -0.0633 -0.0685)
OKLCH	oklch(55.69% 0.093 227.3)
XYZ	xyz(14.5050, 17.8397, 35.0201)
Luminance	0.1784 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#287E9E #9E4828

analogous

#289E83 #287E9E #28439E

triadic

#287E9E #9E287E #7E9E28

tetradic

#287E9E #83289E #9E4828 #439E28

square

#287E9E #83289E #9E4828 #439E28

split-complementary

#287E9E #9E2843 #9E8328

monochromatic

#0F303C #1C576D #287E9E #37A4CC #68BAD9

Accessibility & contrast

On white

4.60

#287E9E on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.57

#287E9E on #000000

AA ✓AA large ✓AAA ✗

Best text color

#FFFFFF on #287E9E

4.60:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##287E9E	#FFFFFF	#000000	##FFFFFF
##287E9E	1.00	4.60	4.57	4.60
#FFFFFF	4.60	1.00	21.00	1.00
#000000	4.57	21.00	1.00	21.00
##FFFFFF	4.60	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#6D7CA0

Deuteranopia (green-blind)

#5D709E

Tritanopia (blue-blind)

#008789

Achromatopsia (no color)

#757575

Design tokens & code

CSS

--color: #287e9e;
/* rgb */ color: rgb(40, 126, 158);
/* oklch */ color: oklch(55.7% 0.093 227.3);

Tailwind

colors: {
  custom: {
    50: '#73a3ba',
    500: '#287e9e',
    950: '#000000',
  },
}

SCSS

$custom: #287e9e;
$custom-light: #73a3ba;
$custom-dark: #000000;

JSON

{
  "hex": "#287e9e",
  "rgb": {
    "r": 40,
    "g": 126,
    "b": 158
  },
  "hsl": {
    "h": 196.271,
    "s": 59.596,
    "l": 38.824
  },
  "oklch": {
    "l": 0.55693,
    "c": 0.09329,
    "h": 227.3
  },
  "luminance": 0.17841
}

Semantic roles & 50–950 ramp

primary

#287E9E

secondary

#BF7C63

accent

#7045E3

background

#F7FAFB

surface

#EDF3F6

border

#C8CDD0

text

#090F11

muted

#7B7F80

Preview Lab

Preview with #287E9E

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

Preview Lab → · Contrast checker → · Palette generator →