#28839B#28839B

#28839B is a mid, moderate cyan. Relative luminance 0.191; OKLCH L 56.8% C 0.090 H 219.4°. Best body text is #000000 at 4.81:1 contrast (WCAG AA passes).

Color values

HEX	#28839B
RGB	rgb(40, 131, 155)
HSL	hsl(193, 59%, 38%)
HSV	hsv(193, 74%, 61%)
CMYK	cmyk(74.2%, 15.5%, 0%, 39.2%)
CIE-LAB	lab(50.74, -18.06, -20.47)
CIE-LCH	lch(50.74, 27.30, 228.58°)
OKLab	oklab(56.81% -0.0696 -0.0572)
OKLCH	oklch(56.81% 0.09 219.4)
XYZ	xyz(14.9053, 19.0485, 33.8952)
Luminance	0.1905 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#28839B #9B4028

analogous

#289B79 #28839B #28499B

triadic

#28839B #9B2883 #839B28

tetradic

#28839B #79289B #9B4028 #499B28

square

#28839B #79289B #9B4028 #499B28

split-complementary

#28839B #9B2849 #9B7928

monochromatic

#0F313A #1B5A6A #28839B #35ACCB #66C0D7

Accessibility & contrast

On white

4.37

#28839B on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.81

#28839B on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #28839B

4.81:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##28839B	#FFFFFF	#000000	##000000
##28839B	1.00	4.37	4.81	4.81
#FFFFFF	4.37	1.00	21.00	21.00
#000000	4.81	21.00	1.00	1.00
##000000	4.81	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#747F9C

Deuteranopia (green-blind)

#64749B

Tritanopia (blue-blind)

#008B8B

Achromatopsia (no color)

#797979

Design tokens & code

CSS

--color: #28839b;
/* rgb */ color: rgb(40, 131, 155);
/* oklch */ color: oklch(56.8% 0.090 219.4);

Tailwind

colors: {
  custom: {
    50: '#73a7b8',
    500: '#28839b',
    950: '#000000',
  },
}

SCSS

$custom: #28839b;
$custom-light: #73a7b8;
$custom-dark: #000000;

JSON

{
  "hex": "#28839b",
  "rgb": {
    "r": 40,
    "g": 131,
    "b": 155
  },
  "hsl": {
    "h": 192.522,
    "s": 58.974,
    "l": 38.235
  },
  "oklch": {
    "l": 0.56809,
    "c": 0.09008,
    "h": 219.4
  },
  "luminance": 0.1905
}

Semantic roles & 50–950 ramp

primary

#28839B

secondary

#BD7561

accent

#6646E2

background

#F7FAFB

surface

#EDF4F6

border

#C8CED0

text

#090F11

muted

#7B7F80

Preview Lab

Preview with #28839B

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

Preview Lab → · Contrast checker → · Palette generator →