#28639E#28639E

#28639E is a mid, moderate cyan. Relative luminance 0.118; OKLCH L 49.1% C 0.113 H 251.2°. Best body text is #FFFFFF at 6.23:1 contrast (WCAG AA passes).

Color values

HEX	#28639E
RGB	rgb(40, 99, 158)
HSL	hsl(210, 60%, 39%)
HSV	hsv(210, 75%, 62%)
CMYK	cmyk(74.7%, 37.3%, 0%, 38%)
CIE-LAB	lab(40.96, 1.81, -37.50)
CIE-LCH	lch(40.96, 37.54, 272.76°)
OKLab	oklab(49.09% -0.0362 -0.1067)
OKLCH	oklch(49.09% 0.113 251.2)
XYZ	xyz(11.5062, 11.8421, 34.0205)
Luminance	0.1184 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#28639E #9E6328

analogous

#289E9E #28639E #28289E

triadic

#28639E #9E2863 #639E28

tetradic

#28639E #9E289E #9E6328 #289E28

square

#28639E #9E289E #9E6328 #289E28

split-complementary

#28639E #9E2828 #9E9E28

monochromatic

#0F263C #1C446D #28639E #3782CC #68A0D9

Accessibility & contrast

On white

6.23

#28639E on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.37

#28639E on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #28639E

6.23:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##28639E	#FFFFFF	#000000	##FFFFFF
##28639E	1.00	6.23	3.37	6.23
#FFFFFF	6.23	1.00	21.00	1.00
#000000	3.37	21.00	1.00	21.00
##FFFFFF	6.23	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#4867A0

Deuteranopia (green-blind)

#365C9D

Tritanopia (blue-blind)

#007179

Achromatopsia (no color)

#616161

Design tokens & code

CSS

--color: #28639e;
/* rgb */ color: rgb(40, 99, 158);
/* oklch */ color: oklch(49.1% 0.113 251.2);

Tailwind

colors: {
  custom: {
    50: '#728fbb',
    500: '#28639e',
    950: '#000000',
  },
}

SCSS

$custom: #28639e;
$custom-light: #728fbb;
$custom-dark: #000000;

JSON

{
  "hex": "#28639e",
  "rgb": {
    "r": 40,
    "g": 99,
    "b": 158
  },
  "hsl": {
    "h": 210,
    "s": 59.596,
    "l": 38.824
  },
  "oklch": {
    "l": 0.49088,
    "c": 0.11274,
    "h": 251.2
  },
  "luminance": 0.11843
}

Semantic roles & 50–950 ramp

primary

#28639E

secondary

#BF9163

accent

#9445E3

background

#F7F8FB

surface

#EDF0F6

border

#C8CBD0

text

#090C12

muted

#7B7D81

Preview Lab

Preview with #28639E

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

Preview Lab → · Contrast checker → · Palette generator →