#28577C#28577C

#28577C is a dark, moderate cyan. Relative luminance 0.087; OKLCH L 44.2% C 0.080 H 244.8°. Best body text is #FFFFFF at 7.65:1 contrast (WCAG AA passes).

Color values

HEX	#28577C
RGB	rgb(40, 87, 124)
HSL	hsl(206, 51%, 32%)
HSV	hsv(206, 68%, 49%)
CMYK	cmyk(67.7%, 29.8%, 0%, 51.4%)
CIE-LAB	lab(35.44, -3.35, -25.62)
CIE-LCH	lch(35.44, 25.84, 262.55°)
OKLab	oklab(44.16% -0.0339 -0.0722)
OKLCH	oklch(44.16% 0.08 244.8)
XYZ	xyz(7.9200, 8.7219, 20.3310)
Luminance	0.0872 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#28577C #7C4D28

analogous

#287C77 #28577C #282D7C

triadic

#28577C #7C2857 #577C28

tetradic

#28577C #77287C #7C4D28 #2D7C28

square

#28577C #77287C #7C4D28 #2D7C28

split-complementary

#28577C #7C282D #7C7728

monochromatic

#0A161F #19374E #28577C #3777AA #5696C8

Accessibility & contrast

On white

7.65

#28577C on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.74

#28577C on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #28577C

7.65:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##28577C	#FFFFFF	#000000	##FFFFFF
##28577C	1.00	7.65	2.74	7.65
#FFFFFF	7.65	1.00	21.00	1.00
#000000	2.74	21.00	1.00	21.00
##FFFFFF	7.65	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#47587E

Deuteranopia (green-blind)

#3B507B

Tritanopia (blue-blind)

#006064

Achromatopsia (no color)

#535353

Design tokens & code

CSS

--color: #28577c;
/* rgb */ color: rgb(40, 87, 124);
/* oklch */ color: oklch(44.2% 0.080 244.8);

Tailwind

colors: {
  custom: {
    50: '#6c86a2',
    500: '#28577c',
    950: '#000000',
  },
}

SCSS

$custom: #28577c;
$custom-light: #6c86a2;
$custom-dark: #000000;

JSON

{
  "hex": "#28577c",
  "rgb": {
    "r": 40,
    "g": 87,
    "b": 124
  },
  "hsl": {
    "h": 206.429,
    "s": 51.22,
    "l": 32.157
  },
  "oklch": {
    "l": 0.44163,
    "c": 0.07982,
    "h": 244.8
  },
  "luminance": 0.08723
}

Semantic roles & 50–950 ramp

primary

#28577C

secondary

#AD7A52

accent

#8B4DDB

background

#F6F8FA

surface

#ECEFF3

border

#C7CACD

text

#070B0F

muted

#7A7C7F

Preview Lab

Preview with #28577C

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

Preview Lab → · Contrast checker → · Palette generator →