#28537C#28537C

#28537C is a dark, moderate cyan. Relative luminance 0.081; OKLCH L 43.2% C 0.083 H 249.3°. Best body text is #FFFFFF at 8.02:1 contrast (WCAG AA passes).

Color values

HEX#28537C
RGBrgb(40, 83, 124)
HSLhsl(209, 51%, 32%)
HSVhsv(209, 68%, 49%)
CMYKcmyk(67.7%, 33.1%, 0%, 51.4%)
CIE-LABlab(34.17, -0.81, -27.61)
CIE-LCHlch(34.17, 27.62, 268.32°)
OKLaboklab(43.16% -0.0294 -0.0781)
OKLCHoklch(43.16% 0.083 249.3)
XYZxyz(7.6051, 8.0921, 20.2260)
Luminance0.0809 (WCAG relative)
Temperaturecool
Familycyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#28537C #7C5128
analogous
#287C7B #28537C #28297C
triadic
#28537C #7C2853 #537C28
tetradic
#28537C #7B287C #7C5128 #297C28
square
#28537C #7B287C #7C5128 #297C28
split-complementary
#28537C #7C2829 #7C7B28
monochromatic
#0A151F #19344E #28537C #3772AA #5691C8

Accessibility & contrast

On white

8.02
#28537C on #FFFFFF
AA ✓AA large ✓AAA ✓

On black

2.62
#28537C on #000000
AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #28537C
8.02:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##28537C#FFFFFF#000000##FFFFFF
##28537C1.008.022.628.02
#FFFFFF8.021.0021.001.00
#0000002.6221.001.0021.00
##FFFFFF8.021.0021.001.00

Color blindness preview

Protanopia (red-blind)
#41557E
Deuteranopia (green-blind)
#364D7B
Tritanopia (blue-blind)
#005D62
Achromatopsia (no color)
#505050

Design tokens & code

CSS
--color: #28537c;
/* rgb */ color: rgb(40, 83, 124);
/* oklch */ color: oklch(43.2% 0.083 249.3);
Tailwind
colors: {
  custom: {
    50: '#6b83a2',
    500: '#28537c',
    950: '#000000',
  },
}
SCSS
$custom: #28537c;
$custom-light: #6b83a2;
$custom-dark: #000000;
JSON
{
  "hex": "#28537c",
  "rgb": {
    "r": 40,
    "g": 83,
    "b": 124
  },
  "hsl": {
    "h": 209.286,
    "s": 51.22,
    "l": 32.157
  },
  "oklch": {
    "l": 0.43163,
    "c": 0.08344,
    "h": 249.3
  },
  "luminance": 0.08093
}

Semantic roles & 50–950 ramp

primary
#28537C
secondary
#AD7F52
accent
#924DDB
background
#F6F7FA
surface
#ECEEF3
border
#C7C9CD
text
#070A0F
muted
#7A7C7F

Preview Lab

Preview with #28537C

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

Preview Lab → · Contrast checker → · Palette generator →

#28537C Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva