#28577A#28577A

#28577A is a dark, moderate cyan. Relative luminance 0.087; OKLCH L 44.1% C 0.077 H 243.4°. Best body text is #FFFFFF at 7.68:1 contrast (WCAG AA passes).

Color values

HEX	#28577A
RGB	rgb(40, 87, 122)
HSL	hsl(206, 51%, 32%)
HSV	hsv(206, 67%, 48%)
CMYK	cmyk(67.2%, 28.7%, 0%, 52.2%)
CIE-LAB	lab(35.34, -4.08, -24.54)
CIE-LCH	lch(35.34, 24.88, 260.56°)
OKLab	oklab(44.05% -0.0346 -0.0691)
OKLCH	oklch(44.05% 0.077 243.4)
XYZ	xyz(7.7948, 8.6719, 19.6716)
Luminance	0.0867 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#28577A #7A4B28

analogous

#287A74 #28577A #282E7A

triadic

#28577A #7A2857 #577A28

tetradic

#28577A #74287A #7A4B28 #2E7A28

square

#28577A #74287A #7A4B28 #2E7A28

split-complementary

#28577A #7A282E #7A7428

monochromatic

#0A151E #19364C #28577A #3778A8 #5597C7

Accessibility & contrast

On white

7.68

#28577A on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.73

#28577A on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #28577A

7.68:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##28577A	#FFFFFF	#000000	##FFFFFF
##28577A	1.00	7.68	2.73	7.68
#FFFFFF	7.68	1.00	21.00	1.00
#000000	2.73	21.00	1.00	21.00
##FFFFFF	7.68	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#47587C

Deuteranopia (green-blind)

#3C5079

Tritanopia (blue-blind)

#006063

Achromatopsia (no color)

#535353

Design tokens & code

CSS

--color: #28577a;
/* rgb */ color: rgb(40, 87, 122);
/* oklch */ color: oklch(44.1% 0.077 243.4);

Tailwind

colors: {
  custom: {
    50: '#6b86a0',
    500: '#28577a',
    950: '#000000',
  },
}

SCSS

$custom: #28577a;
$custom-light: #6b86a0;
$custom-dark: #000000;

JSON

{
  "hex": "#28577a",
  "rgb": {
    "r": 40,
    "g": 87,
    "b": 122
  },
  "hsl": {
    "h": 205.61,
    "s": 50.617,
    "l": 31.765
  },
  "oklch": {
    "l": 0.44053,
    "c": 0.07731,
    "h": 243.4
  },
  "luminance": 0.08673
}

Semantic roles & 50–950 ramp

primary

#28577A

secondary

#AC7852

accent

#8A4EDA

background

#F6F8F9

surface

#ECEFF2

border

#C7CACC

text

#070B0E

muted

#7A7C7E

Preview Lab

Preview with #28577A

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

Preview Lab → · Contrast checker → · Palette generator →