#28729B#28729B

#28729B is a mid, moderate cyan. Relative luminance 0.149; OKLCH L 52.6% C 0.096 H 237.2°. Best body text is #FFFFFF at 5.29:1 contrast (WCAG AA passes).

Color values

HEX	#28729B
RGB	rgb(40, 114, 155)
HSL	hsl(201, 59%, 38%)
HSV	hsv(201, 74%, 61%)
CMYK	cmyk(74.2%, 26.5%, 0%, 39.2%)
CIE-LAB	lab(45.43, -8.45, -28.70)
CIE-LCH	lch(45.43, 29.91, 253.59°)
OKLab	oklab(52.56% -0.0521 -0.0809)
OKLCH	oklch(52.56% 0.096 237.2)
XYZ	xyz(12.8064, 14.8508, 33.1955)
Luminance	0.1485 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#28729B #9B5128

analogous

#289B8A #28729B #28399B

triadic

#28729B #9B2872 #729B28

tetradic

#28729B #8A289B #9B5128 #399B28

square

#28729B #8A289B #9B5128 #399B28

split-complementary

#28729B #9B2839 #9B8A28

monochromatic

#0F2A3A #1B4E6A #28729B #3596CB #66AFD7

Accessibility & contrast

On white

5.29

#28729B on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.97

#28729B on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #28729B

5.29:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##28729B	#FFFFFF	#000000	##FFFFFF
##28729B	1.00	5.29	3.97	5.29
#FFFFFF	5.29	1.00	21.00	1.00
#000000	3.97	21.00	1.00	21.00
##FFFFFF	5.29	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#5F729D

Deuteranopia (green-blind)

#4F679A

Tritanopia (blue-blind)

#007D80

Achromatopsia (no color)

#6C6C6C

Design tokens & code

CSS

--color: #28729b;
/* rgb */ color: rgb(40, 114, 155);
/* oklch */ color: oklch(52.6% 0.096 237.2);

Tailwind

colors: {
  custom: {
    50: '#729ab8',
    500: '#28729b',
    950: '#000000',
  },
}

SCSS

$custom: #28729b;
$custom-light: #729ab8;
$custom-dark: #000000;

JSON

{
  "hex": "#28729b",
  "rgb": {
    "r": 40,
    "g": 114,
    "b": 155
  },
  "hsl": {
    "h": 201.391,
    "s": 58.974,
    "l": 38.235
  },
  "oklch": {
    "l": 0.52562,
    "c": 0.09624,
    "h": 237.2
  },
  "luminance": 0.14852
}

Semantic roles & 50–950 ramp

primary

#28729B

secondary

#BD8261

accent

#7D46E2

background

#F7F9FB

surface

#EDF2F6

border

#C8CCD0

text

#090E11

muted

#7B7E80

Preview Lab

Preview with #28729B

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

Preview Lab → · Contrast checker → · Palette generator →