#28647B#28647B

#28647B is a mid, moderate cyan. Relative luminance 0.110; OKLCH L 47.4% C 0.071 H 226.6°. Best body text is #FFFFFF at 6.56:1 contrast (WCAG AA passes).

Color values

HEX	#28647B
RGB	rgb(40, 100, 123)
HSL	hsl(197, 51%, 32%)
HSV	hsv(197, 67%, 48%)
CMYK	cmyk(67.5%, 18.7%, 0%, 51.8%)
CIE-LAB	lab(39.57, -11.58, -18.60)
CIE-LCH	lch(39.57, 21.91, 238.08°)
OKLab	oklab(47.43% -0.0491 -0.0519)
OKLCH	oklch(47.43% 0.071 226.6)
XYZ	xyz(9.0060, 10.9946, 20.3826)
Luminance	0.1100 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#28647B #7B3F28

analogous

#287B69 #28647B #283A7B

triadic

#28647B #7B2864 #647B28

tetradic

#28647B #69287B #7B3F28 #3A7B28

square

#28647B #69287B #7B3F28 #3A7B28

split-complementary

#28647B #7B283A #7B6928

monochromatic

#0A191F #193E4D #28647B #378AA9 #56A8C8

Accessibility & contrast

On white

6.56

#28647B on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.20

#28647B on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #28647B

6.56:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##28647B	#FFFFFF	#000000	##FFFFFF
##28647B	1.00	6.56	3.20	6.56
#FFFFFF	6.56	1.00	21.00	1.00
#000000	3.20	21.00	1.00	21.00
##FFFFFF	6.56	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#58627C

Deuteranopia (green-blind)

#4C597B

Tritanopia (blue-blind)

#006B6B

Achromatopsia (no color)

#5D5D5D

Design tokens & code

CSS

--color: #28647b;
/* rgb */ color: rgb(40, 100, 123);
/* oklch */ color: oklch(47.4% 0.071 226.6);

Tailwind

colors: {
  custom: {
    50: '#6c90a1',
    500: '#28647b',
    950: '#000000',
  },
}

SCSS

$custom: #28647b;
$custom-light: #6c90a1;
$custom-dark: #000000;

JSON

{
  "hex": "#28647b",
  "rgb": {
    "r": 40,
    "g": 100,
    "b": 123
  },
  "hsl": {
    "h": 196.627,
    "s": 50.92,
    "l": 31.961
  },
  "oklch": {
    "l": 0.47426,
    "c": 0.07149,
    "h": 226.6
  },
  "luminance": 0.10996
}

Semantic roles & 50–950 ramp

primary

#28647B

secondary

#AD6B52

accent

#744DDA

background

#F6F8F9

surface

#ECF0F2

border

#C7CBCC

text

#070C0F

muted

#7A7D7E

Preview Lab

Preview with #28647B

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

Preview Lab → · Contrast checker → · Palette generator →