#287A9D#287A9D

#287A9D is a mid, moderate cyan. Relative luminance 0.168; OKLCH L 54.6% C 0.094 H 230.7°. Best body text is #FFFFFF at 4.82:1 contrast (WCAG AA passes).

Color values

HEX	#287A9D
RGB	rgb(40, 122, 157)
HSL	hsl(198, 59%, 39%)
HSV	hsv(198, 75%, 62%)
CMYK	cmyk(74.5%, 22.3%, 0%, 38.4%)
CIE-LAB	lab(48.01, -12.37, -25.86)
CIE-LCH	lch(48.01, 28.66, 244.44°)
OKLab	oklab(54.65% -0.0596 -0.0726)
OKLCH	oklch(54.65% 0.094 230.7)
XYZ	xyz(13.9180, 16.8029, 34.4015)
Luminance	0.1681 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#287A9D #9D4B28

analogous

#289D85 #287A9D #283F9D

triadic

#287A9D #9D287A #7A9D28

tetradic

#287A9D #85289D #9D4B28 #3F9D28

square

#287A9D #85289D #9D4B28 #3F9D28

split-complementary

#287A9D #9D283F #9D8528

monochromatic

#0F2E3B #1C546C #287A9D #369FCC #67B6D8

Accessibility & contrast

On white

4.82

#287A9D on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.36

#287A9D on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #287A9D

4.82:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##287A9D	#FFFFFF	#000000	##FFFFFF
##287A9D	1.00	4.82	4.36	4.82
#FFFFFF	4.82	1.00	21.00	1.00
#000000	4.36	21.00	1.00	21.00
##FFFFFF	4.82	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#68789F

Deuteranopia (green-blind)

#586D9C

Tritanopia (blue-blind)

#008486

Achromatopsia (no color)

#727272

Design tokens & code

CSS

--color: #287a9d;
/* rgb */ color: rgb(40, 122, 157);
/* oklch */ color: oklch(54.6% 0.094 230.7);

Tailwind

colors: {
  custom: {
    50: '#73a0ba',
    500: '#287a9d',
    950: '#000000',
  },
}

SCSS

$custom: #287a9d;
$custom-light: #73a0ba;
$custom-dark: #000000;

JSON

{
  "hex": "#287a9d",
  "rgb": {
    "r": 40,
    "g": 122,
    "b": 157
  },
  "hsl": {
    "h": 197.949,
    "s": 59.391,
    "l": 38.627
  },
  "oklch": {
    "l": 0.54648,
    "c": 0.09394,
    "h": 230.7
  },
  "luminance": 0.16805
}

Semantic roles & 50–950 ramp

primary

#287A9D

secondary

#BE7E62

accent

#7445E3

background

#F7F9FB

surface

#EDF2F6

border

#C8CCD0

text

#090E11

muted

#7B7E80

Preview Lab

Preview with #287A9D

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

Preview Lab → · Contrast checker → · Palette generator →