#28638D#28638D

#28638D is a mid, moderate cyan. Relative luminance 0.113; OKLCH L 48.1% C 0.091 H 243.0°. Best body text is #FFFFFF at 6.44:1 contrast (WCAG AA passes).

Color values

HEX	#28638D
RGB	rgb(40, 99, 141)
HSL	hsl(205, 56%, 35%)
HSV	hsv(205, 72%, 55%)
CMYK	cmyk(71.6%, 29.8%, 0%, 44.7%)
CIE-LAB	lab(40.08, -4.55, -28.72)
CIE-LCH	lch(40.08, 29.08, 261.01°)
OKLab	oklab(48.1% -0.0413 -0.0811)
OKLCH	oklch(48.1% 0.091 243)
XYZ	xyz(10.1428, 11.2968, 26.8401)
Luminance	0.1130 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#28638D #8D5228

analogous

#288D84 #28638D #28318D

triadic

#28638D #8D2863 #638D28

tetradic

#28638D #84288D #8D5228 #318D28

square

#28638D #84288D #8D5228 #318D28

split-complementary

#28638D #8D2831 #8D8428

monochromatic

#0D202E #1A425D #28638D #3684BD #5EA1D1

Accessibility & contrast

On white

6.44

#28638D on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.26

#28638D on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #28638D

6.44:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##28638D	#FFFFFF	#000000	##FFFFFF
##28638D	1.00	6.44	3.26	6.44
#FFFFFF	6.44	1.00	21.00	1.00
#000000	3.26	21.00	1.00	21.00
##FFFFFF	6.44	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#50648F

Deuteranopia (green-blind)

#425A8C

Tritanopia (blue-blind)

#006D72

Achromatopsia (no color)

#5E5E5E

Design tokens & code

CSS

--color: #28638d;
/* rgb */ color: rgb(40, 99, 141);
/* oklch */ color: oklch(48.1% 0.091 243.0);

Tailwind

colors: {
  custom: {
    50: '#6f8fae',
    500: '#28638d',
    950: '#000000',
  },
}

SCSS

$custom: #28638d;
$custom-light: #6f8fae;
$custom-dark: #000000;

JSON

{
  "hex": "#28638d",
  "rgb": {
    "r": 40,
    "g": 99,
    "b": 141
  },
  "hsl": {
    "h": 204.95,
    "s": 55.801,
    "l": 35.49
  },
  "oklch": {
    "l": 0.48099,
    "c": 0.09106,
    "h": 243
  },
  "luminance": 0.11298
}

Semantic roles & 50–950 ramp

primary

#28638D

secondary

#B7815A

accent

#8749DF

background

#F7F8FA

surface

#EDF0F4

border

#C8CBCE

text

#080C10

muted

#7B7D7F

Preview Lab

Preview with #28638D

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

Preview Lab → · Contrast checker → · Palette generator →