#28588C#28588C

#28588C is a mid, moderate cyan. Relative luminance 0.093; OKLCH L 45.3% C 0.100 H 252.5°. Best body text is #FFFFFF at 7.33:1 contrast (WCAG AA passes).

Color values

HEX	#28588C
RGB	rgb(40, 88, 140)
HSL	hsl(211, 56%, 35%)
HSV	hsv(211, 71%, 55%)
CMYK	cmyk(71.4%, 37.1%, 0%, 45.1%)
CIE-LAB	lab(36.60, 1.99, -33.59)
CIE-LCH	lch(36.60, 33.65, 273.39°)
OKLab	oklab(45.35% -0.0301 -0.0955)
OKLCH	oklch(45.35% 0.1 252.5)
XYZ	xyz(9.0967, 9.3230, 26.1260)
Luminance	0.0932 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#28588C #8C5C28

analogous

#288A8C #28588C #2A288C

triadic

#28588C #8C2858 #588C28

tetradic

#28588C #8C288A #8C5C28 #288C2A

square

#28588C #8C288A #8C5C28 #288C2A

split-complementary

#28588C #8C2A28 #8A8C28

monochromatic

#0D1C2D #1A3A5C #28588C #3676BC #5E95D1

Accessibility & contrast

On white

7.33

#28588C on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.86

#28588C on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #28588C

7.33:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##28588C	#FFFFFF	#000000	##FFFFFF
##28588C	1.00	7.33	2.86	7.33
#FFFFFF	7.33	1.00	21.00	1.00
#000000	2.86	21.00	1.00	21.00
##FFFFFF	7.33	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#415B8E

Deuteranopia (green-blind)

#32528B

Tritanopia (blue-blind)

#00646B

Achromatopsia (no color)

#565656

Design tokens & code

CSS

--color: #28588c;
/* rgb */ color: rgb(40, 88, 140);
/* oklch */ color: oklch(45.3% 0.100 252.5);

Tailwind

colors: {
  custom: {
    50: '#6f86ae',
    500: '#28588c',
    950: '#000000',
  },
}

SCSS

$custom: #28588c;
$custom-light: #6f86ae;
$custom-dark: #000000;

JSON

{
  "hex": "#28588c",
  "rgb": {
    "r": 40,
    "g": 88,
    "b": 140
  },
  "hsl": {
    "h": 211.2,
    "s": 55.556,
    "l": 35.294
  },
  "oklch": {
    "l": 0.45347,
    "c": 0.10012,
    "h": 252.5
  },
  "luminance": 0.09324
}

Semantic roles & 50–950 ramp

primary

#28588C

secondary

#B68A5A

accent

#9749DF

background

#F7F8FA

surface

#EDEFF4

border

#C8CACE

text

#080B10

muted

#7B7C7F

Preview Lab

Preview with #28588C

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

Preview Lab → · Contrast checker → · Palette generator →