#28728B#28728B

#28728B is a mid, moderate cyan. Relative luminance 0.143; OKLCH L 51.8% C 0.081 H 224.3°. Best body text is #FFFFFF at 5.43:1 contrast (WCAG AA passes).

Color values

HEX	#28728B
RGB	rgb(40, 114, 139)
HSL	hsl(195, 55%, 35%)
HSV	hsv(195, 71%, 55%)
CMYK	cmyk(71.2%, 18%, 0%, 45.5%)
CIE-LAB	lab(44.73, -14.10, -20.29)
CIE-LCH	lch(44.73, 24.71, 235.21°)
OKLab	oklab(51.77% -0.0581 -0.0567)
OKLCH	oklch(51.77% 0.081 224.3)
XYZ	xyz(11.5507, 14.3485, 26.5819)
Luminance	0.1435 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#28728B #8B4128

analogous

#288B73 #28728B #28408B

triadic

#28728B #8B2872 #728B28

tetradic

#28728B #73288B #8B4128 #408B28

square

#28728B #73288B #8B4128 #408B28

split-complementary

#28728B #8B2840 #8B7328

monochromatic

#0D242C #1A4B5B #28728B #3699BB #5DB3D0

Accessibility & contrast

On white

5.43

#28728B on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.87

#28728B on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #28728B

5.43:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##28728B	#FFFFFF	#000000	##FFFFFF
##28728B	1.00	5.43	3.87	5.43
#FFFFFF	5.43	1.00	21.00	1.00
#000000	3.87	21.00	1.00	21.00
##FFFFFF	5.43	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#646F8C

Deuteranopia (green-blind)

#56658B

Tritanopia (blue-blind)

#007A7A

Achromatopsia (no color)

#6A6A6A

Design tokens & code

CSS

--color: #28728b;
/* rgb */ color: rgb(40, 114, 139);
/* oklch */ color: oklch(51.8% 0.081 224.3);

Tailwind

colors: {
  custom: {
    50: '#6f9aad',
    500: '#28728b',
    950: '#000000',
  },
}

SCSS

$custom: #28728b;
$custom-light: #6f9aad;
$custom-dark: #000000;

JSON

{
  "hex": "#28728b",
  "rgb": {
    "r": 40,
    "g": 114,
    "b": 139
  },
  "hsl": {
    "h": 195.152,
    "s": 55.307,
    "l": 35.098
  },
  "oklch": {
    "l": 0.51772,
    "c": 0.08125,
    "h": 224.3
  },
  "luminance": 0.1435
}

Semantic roles & 50–950 ramp

primary

#28728B

secondary

#B67059

accent

#6F49DF

background

#F7F9FA

surface

#EDF2F4

border

#C8CCCE

text

#080E10

muted

#7B7E7F

Preview Lab

Preview with #28728B

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

Preview Lab → · Contrast checker → · Palette generator →