#28639D#28639D

#28639D is a mid, moderate cyan. Relative luminance 0.118; OKLCH L 49.0% C 0.111 H 250.9°. Best body text is #FFFFFF at 6.25:1 contrast (WCAG AA passes).

Color values

HEX	#28639D
RGB	rgb(40, 99, 157)
HSL	hsl(210, 59%, 39%)
HSV	hsv(210, 75%, 62%)
CMYK	cmyk(74.5%, 36.9%, 0%, 38.4%)
CIE-LAB	lab(40.91, 1.43, -36.99)
CIE-LCH	lch(40.91, 37.02, 272.21°)
OKLab	oklab(49.03% -0.0365 -0.1053)
OKLCH	oklch(49.03% 0.111 250.9)
XYZ	xyz(11.4204, 11.8078, 33.5690)
Luminance	0.1181 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#28639D #9D6228

analogous

#289D9C #28639D #28289D

triadic

#28639D #9D2863 #639D28

tetradic

#28639D #9C289D #9D6228 #289D28

square

#28639D #9C289D #9D6228 #289D28

split-complementary

#28639D #9D2828 #9D9C28

monochromatic

#0F253B #1C446C #28639D #3682CC #67A0D8

Accessibility & contrast

On white

6.25

#28639D on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.36

#28639D on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #28639D

6.25:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##28639D	#FFFFFF	#000000	##FFFFFF
##28639D	1.00	6.25	3.36	6.25
#FFFFFF	6.25	1.00	21.00	1.00
#000000	3.36	21.00	1.00	21.00
##FFFFFF	6.25	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#48669F

Deuteranopia (green-blind)

#375C9C

Tritanopia (blue-blind)

#007178

Achromatopsia (no color)

#606060

Design tokens & code

CSS

--color: #28639d;
/* rgb */ color: rgb(40, 99, 157);
/* oklch */ color: oklch(49.0% 0.111 250.9);

Tailwind

colors: {
  custom: {
    50: '#728fba',
    500: '#28639d',
    950: '#000000',
  },
}

SCSS

$custom: #28639d;
$custom-light: #728fba;
$custom-dark: #000000;

JSON

{
  "hex": "#28639d",
  "rgb": {
    "r": 40,
    "g": 99,
    "b": 157
  },
  "hsl": {
    "h": 209.744,
    "s": 59.391,
    "l": 38.627
  },
  "oklch": {
    "l": 0.49027,
    "c": 0.11142,
    "h": 250.9
  },
  "luminance": 0.11809
}

Semantic roles & 50–950 ramp

primary

#28639D

secondary

#BE9062

accent

#9345E3

background

#F7F8FB

surface

#EDF0F6

border

#C8CBD0

text

#090C11

muted

#7B7D80

Preview Lab

Preview with #28639D

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

Preview Lab → · Contrast checker → · Palette generator →