#28556B#28556B

#28556B is a dark, moderate cyan. Relative luminance 0.080; OKLCH L 42.8% C 0.061 H 231.9°. Best body text is #FFFFFF at 8.07:1 contrast (WCAG AA passes).

Color values

HEX	#28556B
RGB	rgb(40, 85, 107)
HSL	hsl(200, 46%, 29%)
HSV	hsv(200, 63%, 42%)
CMYK	cmyk(62.6%, 20.6%, 0%, 58%)
CIE-LAB	lab(34.00, -8.20, -17.30)
CIE-LCH	lch(34.00, 19.15, 244.65°)
OKLab	oklab(42.76% -0.0379 -0.0483)
OKLCH	oklch(42.76% 0.061 231.9)
XYZ	xyz(6.7764, 8.0090, 15.0958)
Luminance	0.0801 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#28556B #6B3E28

analogous

#286B60 #28556B #28346B

triadic

#28556B #6B2855 #556B28

tetradic

#28556B #60286B #6B3E28 #346B28

square

#28556B #60286B #6B3E28 #346B28

split-complementary

#28556B #6B2834 #6B6028

monochromatic

#081216 #17323E #28556B #397898 #509ABE

Accessibility & contrast

On white

8.07

#28556B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.60

#28556B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #28556B

8.07:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##28556B	#FFFFFF	#000000	##FFFFFF
##28556B	1.00	8.07	2.60	8.07
#FFFFFF	8.07	1.00	21.00	1.00
#000000	2.60	21.00	1.00	21.00
##FFFFFF	8.07	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#4A546C

Deuteranopia (green-blind)

#414D6B

Tritanopia (blue-blind)

#005B5C

Achromatopsia (no color)

#505050

Design tokens & code

CSS

--color: #28556b;
/* rgb */ color: rgb(40, 85, 107);
/* oklch */ color: oklch(42.8% 0.061 231.9);

Tailwind

colors: {
  custom: {
    50: '#698495',
    500: '#28556b',
    950: '#000000',
  },
}

SCSS

$custom: #28556b;
$custom-light: #698495;
$custom-dark: #000000;

JSON

{
  "hex": "#28556b",
  "rgb": {
    "r": 40,
    "g": 85,
    "b": 107
  },
  "hsl": {
    "h": 199.701,
    "s": 45.578,
    "l": 28.824
  },
  "oklch": {
    "l": 0.42758,
    "c": 0.0614,
    "h": 231.9
  },
  "luminance": 0.0801
}

Semantic roles & 50–950 ramp

primary

#28556B

secondary

#9D6A51

accent

#7D53D5

background

#F6F8F9

surface

#EBEFF1

border

#C6CACB

text

#070B0D

muted

#7A7C7E

Preview Lab

Preview with #28556B

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

Preview Lab → · Contrast checker → · Palette generator →