#28558B#28558B

#28558B is a dark, moderate cyan. Relative luminance 0.088; OKLCH L 44.6% C 0.102 H 254.5°. Best body text is #FFFFFF at 7.60:1 contrast (WCAG AA passes).

Color values

HEX	#28558B
RGB	rgb(40, 85, 139)
HSL	hsl(213, 55%, 35%)
HSV	hsv(213, 71%, 55%)
CMYK	cmyk(71.2%, 38.8%, 0%, 45.5%)
CIE-LAB	lab(35.62, 3.55, -34.54)
CIE-LCH	lch(35.62, 34.72, 275.87°)
OKLab	oklab(44.56% -0.0273 -0.0983)
OKLCH	oklch(44.56% 0.102 254.5)
XYZ	xyz(8.7821, 8.8113, 25.6590)
Luminance	0.0881 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#28558B #8B5E28

analogous

#28878B #28558B #2C288B

triadic

#28558B #8B2855 #558B28

tetradic

#28558B #8B2887 #8B5E28 #288B2C

square

#28558B #8B2887 #8B5E28 #288B2C

split-complementary

#28558B #8B2C28 #878B28

monochromatic

#0D1B2C #1A385B #28558B #3672BB #5D91D0

Accessibility & contrast

On white

7.60

#28558B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.76

#28558B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #28558B

7.60:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##28558B	#FFFFFF	#000000	##FFFFFF
##28558B	1.00	7.60	2.76	7.60
#FFFFFF	7.60	1.00	21.00	1.00
#000000	2.76	21.00	1.00	21.00
##FFFFFF	7.60	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#3D598D

Deuteranopia (green-blind)

#2E508A

Tritanopia (blue-blind)

#006269

Achromatopsia (no color)

#545454

Design tokens & code

CSS

--color: #28558b;
/* rgb */ color: rgb(40, 85, 139);
/* oklch */ color: oklch(44.6% 0.102 254.5);

Tailwind

colors: {
  custom: {
    50: '#6e84ad',
    500: '#28558b',
    950: '#000000',
  },
}

SCSS

$custom: #28558b;
$custom-light: #6e84ad;
$custom-dark: #000000;

JSON

{
  "hex": "#28558b",
  "rgb": {
    "r": 40,
    "g": 85,
    "b": 139
  },
  "hsl": {
    "h": 212.727,
    "s": 55.307,
    "l": 35.098
  },
  "oklch": {
    "l": 0.44562,
    "c": 0.10201,
    "h": 254.5
  },
  "luminance": 0.08812
}

Semantic roles & 50–950 ramp

primary

#28558B

secondary

#B68C59

accent

#9B49DF

background

#F7F8FA

surface

#EDEFF4

border

#C8CACE

text

#080A10

muted

#7B7C7F

Preview Lab

Preview with #28558B

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

Preview Lab → · Contrast checker → · Palette generator →