#28576B#28576B

#28576B is a dark, moderate cyan. Relative luminance 0.083; OKLCH L 43.3% C 0.061 H 228.4°. Best body text is #FFFFFF at 7.88:1 contrast (WCAG AA passes).

Color values

HEX	#28576B
RGB	rgb(40, 87, 107)
HSL	hsl(198, 46%, 29%)
HSV	hsv(198, 63%, 42%)
CMYK	cmyk(62.6%, 18.7%, 0%, 58%)
CIE-LAB	lab(34.66, -9.41, -16.29)
CIE-LCH	lch(34.66, 18.82, 240.00°)
OKLab	oklab(43.28% -0.0403 -0.0454)
OKLCH	oklch(43.28% 0.061 228.4)
XYZ	xyz(6.9361, 8.3284, 15.1491)
Luminance	0.0833 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#28576B #6B3C28

analogous

#286B5E #28576B #28366B

triadic

#28576B #6B2857 #576B28

tetradic

#28576B #5E286B #6B3C28 #366B28

square

#28576B #5E286B #6B3C28 #366B28

split-complementary

#28576B #6B2836 #6B5E28

monochromatic

#081216 #17333E #28576B #397B98 #509DBE

Accessibility & contrast

On white

7.88

#28576B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.67

#28576B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #28576B

7.88:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##28576B	#FFFFFF	#000000	##FFFFFF
##28576B	1.00	7.88	2.67	7.88
#FFFFFF	7.88	1.00	21.00	1.00
#000000	2.67	21.00	1.00	21.00
##FFFFFF	7.88	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#4D566C

Deuteranopia (green-blind)

#434E6B

Tritanopia (blue-blind)

#005D5D

Achromatopsia (no color)

#515151

Design tokens & code

CSS

--color: #28576b;
/* rgb */ color: rgb(40, 87, 107);
/* oklch */ color: oklch(43.3% 0.061 228.4);

Tailwind

colors: {
  custom: {
    50: '#698695',
    500: '#28576b',
    950: '#000000',
  },
}

SCSS

$custom: #28576b;
$custom-light: #698695;
$custom-dark: #000000;

JSON

{
  "hex": "#28576b",
  "rgb": {
    "r": 40,
    "g": 87,
    "b": 107
  },
  "hsl": {
    "h": 197.91,
    "s": 45.578,
    "l": 28.824
  },
  "oklch": {
    "l": 0.4328,
    "c": 0.06075,
    "h": 228.4
  },
  "luminance": 0.08329
}

Semantic roles & 50–950 ramp

primary

#28576B

secondary

#9D6851

accent

#7A53D5

background

#F6F8F9

surface

#EBEFF1

border

#C6CACB

text

#070B0D

muted

#7A7C7E

Preview Lab

Preview with #28576B

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

Preview Lab → · Contrast checker → · Palette generator →