#28548B#28548B

#28548B is a dark, moderate cyan. Relative luminance 0.087; OKLCH L 44.3% C 0.103 H 255.2°. Best body text is #FFFFFF at 7.69:1 contrast (WCAG AA passes).

Color values

HEX	#28548B
RGB	rgb(40, 84, 139)
HSL	hsl(213, 55%, 35%)
HSV	hsv(213, 71%, 55%)
CMYK	cmyk(71.2%, 39.6%, 0%, 45.5%)
CIE-LAB	lab(35.31, 4.20, -35.03)
CIE-LCH	lch(35.31, 35.28, 276.84°)
OKLab	oklab(44.32% -0.0263 -0.0997)
OKLCH	oklch(44.32% 0.103 255.2)
XYZ	xyz(8.7039, 8.6549, 25.6330)
Luminance	0.0866 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#28548B #8B5F28

analogous

#28868B #28548B #2D288B

triadic

#28548B #8B2854 #548B28

tetradic

#28548B #8B2886 #8B5F28 #288B2D

square

#28548B #8B2886 #8B5F28 #288B2D

split-complementary

#28548B #8B2D28 #868B28

monochromatic

#0D1B2C #1A375B #28548B #3671BB #5D90D0

Accessibility & contrast

On white

7.69

#28548B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.73

#28548B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #28548B

7.69:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##28548B	#FFFFFF	#000000	##FFFFFF
##28548B	1.00	7.69	2.73	7.69
#FFFFFF	7.69	1.00	21.00	1.00
#000000	2.73	21.00	1.00	21.00
##FFFFFF	7.69	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#3B588D

Deuteranopia (green-blind)

#2C4F8A

Tritanopia (blue-blind)

#006169

Achromatopsia (no color)

#535353

Design tokens & code

CSS

--color: #28548b;
/* rgb */ color: rgb(40, 84, 139);
/* oklch */ color: oklch(44.3% 0.103 255.2);

Tailwind

colors: {
  custom: {
    50: '#6e83ad',
    500: '#28548b',
    950: '#000000',
  },
}

SCSS

$custom: #28548b;
$custom-light: #6e83ad;
$custom-dark: #000000;

JSON

{
  "hex": "#28548b",
  "rgb": {
    "r": 40,
    "g": 84,
    "b": 139
  },
  "hsl": {
    "h": 213.333,
    "s": 55.307,
    "l": 35.098
  },
  "oklch": {
    "l": 0.44323,
    "c": 0.10313,
    "h": 255.2
  },
  "luminance": 0.08656
}

Semantic roles & 50–950 ramp

primary

#28548B

secondary

#B68D59

accent

#9C49DF

background

#F7F8FA

surface

#EDEFF4

border

#C8CACE

text

#080A10

muted

#7B7C7F

Preview Lab

Preview with #28548B

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

Preview Lab → · Contrast checker → · Palette generator →