#28648B#28648B

#28648B is a mid, moderate cyan. Relative luminance 0.114; OKLCH L 48.2% C 0.088 H 240.7°. Best body text is #FFFFFF at 6.39:1 contrast (WCAG AA passes).

Color values

HEX	#28648B
RGB	rgb(40, 100, 139)
HSL	hsl(204, 55%, 35%)
HSV	hsv(204, 71%, 55%)
CMYK	cmyk(71.2%, 28.1%, 0%, 45.5%)
CIE-LAB	lab(40.29, -5.89, -27.17)
CIE-LCH	lch(40.29, 27.80, 257.77°)
OKLab	oklab(48.24% -0.0431 -0.0766)
OKLCH	oklch(48.24% 0.088 240.7)
XYZ	xyz(10.0906, 11.4284, 26.0952)
Luminance	0.1143 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#28648B #8B4F28

analogous

#288B80 #28648B #28338B

triadic

#28648B #8B2864 #648B28

tetradic

#28648B #80288B #8B4F28 #338B28

square

#28648B #80288B #8B4F28 #338B28

split-complementary

#28648B #8B2833 #8B8028

monochromatic

#0D202C #1A425B #28648B #3686BB #5DA3D0

Accessibility & contrast

On white

6.39

#28648B on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.29

#28648B on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #28648B

6.39:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##28648B	#FFFFFF	#000000	##FFFFFF
##28648B	1.00	6.39	3.29	6.39
#FFFFFF	6.39	1.00	21.00	1.00
#000000	3.29	21.00	1.00	21.00
##FFFFFF	6.39	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#52648D

Deuteranopia (green-blind)

#445B8A

Tritanopia (blue-blind)

#006E71

Achromatopsia (no color)

#5F5F5F

Design tokens & code

CSS

--color: #28648b;
/* rgb */ color: rgb(40, 100, 139);
/* oklch */ color: oklch(48.2% 0.088 240.7);

Tailwind

colors: {
  custom: {
    50: '#6f90ad',
    500: '#28648b',
    950: '#000000',
  },
}

SCSS

$custom: #28648b;
$custom-light: #6f90ad;
$custom-dark: #000000;

JSON

{
  "hex": "#28648b",
  "rgb": {
    "r": 40,
    "g": 100,
    "b": 139
  },
  "hsl": {
    "h": 203.636,
    "s": 55.307,
    "l": 35.098
  },
  "oklch": {
    "l": 0.48239,
    "c": 0.08792,
    "h": 240.7
  },
  "luminance": 0.1143
}

Semantic roles & 50–950 ramp

primary

#28648B

secondary

#B67E59

accent

#8449DF

background

#F7F8FA

surface

#EDF0F4

border

#C8CBCE

text

#080C10

muted

#7B7D7F

Preview Lab

Preview with #28648B

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

Preview Lab → · Contrast checker → · Palette generator →