#28638F#28638F

#28638F is a mid, moderate cyan. Relative luminance 0.114; OKLCH L 48.2% C 0.093 H 244.2°. Best body text is #FFFFFF at 6.42:1 contrast (WCAG AA passes).

Color values

HEX	#28638F
RGB	rgb(40, 99, 143)
HSL	hsl(206, 56%, 36%)
HSV	hsv(206, 72%, 56%)
CMYK	cmyk(72%, 30.8%, 0%, 43.9%)
CIE-LAB	lab(40.17, -3.81, -29.77)
CIE-LCH	lch(40.17, 30.01, 262.71°)
OKLab	oklab(48.21% -0.0407 -0.0842)
OKLCH	oklch(48.21% 0.094 244.2)
XYZ	xyz(10.2929, 11.3568, 27.6309)
Luminance	0.1136 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#28638F #8F5428

analogous

#288F87 #28638F #282F8F

triadic

#28638F #8F2863 #638F28

tetradic

#28638F #87288F #8F5428 #2F8F28

square

#28638F #87288F #8F5428 #2F8F28

split-complementary

#28638F #8F282F #8F8728

monochromatic

#0D212F #1B425F #28638F #3584BF #5FA1D2

Accessibility & contrast

On white

6.42

#28638F on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.27

#28638F on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #28638F

6.42:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##28638F	#FFFFFF	#000000	##FFFFFF
##28638F	1.00	6.42	3.27	6.42
#FFFFFF	6.42	1.00	21.00	1.00
#000000	3.27	21.00	1.00	21.00
##FFFFFF	6.42	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#4F6491

Deuteranopia (green-blind)

#415A8E

Tritanopia (blue-blind)

#006E72

Achromatopsia (no color)

#5F5F5F

Design tokens & code

CSS

--color: #28638f;
/* rgb */ color: rgb(40, 99, 143);
/* oklch */ color: oklch(48.2% 0.093 244.2);

Tailwind

colors: {
  custom: {
    50: '#6f8fb0',
    500: '#28638f',
    950: '#000000',
  },
}

SCSS

$custom: #28638f;
$custom-light: #6f8fb0;
$custom-dark: #000000;

JSON

{
  "hex": "#28638f",
  "rgb": {
    "r": 40,
    "g": 99,
    "b": 143
  },
  "hsl": {
    "h": 205.631,
    "s": 56.284,
    "l": 35.882
  },
  "oklch": {
    "l": 0.4821,
    "c": 0.0935,
    "h": 244.2
  },
  "luminance": 0.11358
}

Semantic roles & 50–950 ramp

primary

#28638F

secondary

#B8835B

accent

#8948E0

background

#F7F8FA

surface

#EDF0F4

border

#C8CBCE

text

#080C10

muted

#7B7D7F

Preview Lab

Preview with #28638F

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

Preview Lab → · Contrast checker → · Palette generator →