#28B1D4#28B1D4

#28B1D4 is a light, vivid cyan. Relative luminance 0.366; OKLCH L 70.6% C 0.120 H 220.2°. Best body text is #000000 at 8.33:1 contrast (WCAG AA passes).

Color values

HEX	#28B1D4
RGB	rgb(40, 177, 212)
HSL	hsl(192, 68%, 49%)
HSV	hsv(192, 81%, 83%)
CMYK	cmyk(81.1%, 16.5%, 0%, 16.9%)
CIE-LAB	lab(67.01, -23.24, -27.70)
CIE-LCH	lch(67.01, 36.16, 230.01°)
OKLab	oklab(70.61% -0.0919 -0.0776)
OKLCH	oklch(70.61% 0.12 220.2)
XYZ	xyz(28.4758, 36.6453, 67.8470)
Luminance	0.3665 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#28B1D4 #D44B28

analogous

#28D4A1 #28B1D4 #285BD4

triadic

#28B1D4 #D428B1 #B1D428

tetradic

#28B1D4 #A128D4 #D44B28 #5BD428

square

#28B1D4 #A128D4 #D44B28 #5BD428

split-complementary

#28B1D4 #D4285B #D4A128

monochromatic

#155B6D #1E86A1 #28B1D4 #59C4E0 #8DD7E9

Accessibility & contrast

On white

2.52

#28B1D4 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

8.33

#28B1D4 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #28B1D4

8.33:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##28B1D4	#FFFFFF	#000000	##000000
##28B1D4	1.00	2.52	8.33	8.33
#FFFFFF	2.52	1.00	21.00	21.00
#000000	8.33	21.00	1.00	1.00
##000000	8.33	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#9CACD6

Deuteranopia (green-blind)

#859CD4

Tritanopia (blue-blind)

#00BCBC

Achromatopsia (no color)

#A3A3A3

Design tokens & code

CSS

--color: #28b1d4;
/* rgb */ color: rgb(40, 177, 212);
/* oklch */ color: oklch(70.6% 0.120 220.2);

Tailwind

colors: {
  custom: {
    50: '#80c8e1',
    500: '#28b1d4',
    950: '#000000',
  },
}

SCSS

$custom: #28b1d4;
$custom-light: #80c8e1;
$custom-dark: #000000;

JSON

{
  "hex": "#28b1d4",
  "rgb": {
    "r": 40,
    "g": 177,
    "b": 212
  },
  "hsl": {
    "h": 192.209,
    "s": 68.254,
    "l": 49.412
  },
  "oklch": {
    "l": 0.70614,
    "c": 0.12026,
    "h": 220.2
  },
  "luminance": 0.36649
}

Semantic roles & 50–950 ramp

primary

#28B1D4

secondary

#D49484

accent

#603DEB

background

#F8FCFD

surface

#F0F8FB

border

#CBD1D4

text

#0C1315

muted

#7D8283

Preview Lab

Preview with #28B1D4

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

Preview Lab → · Contrast checker → · Palette generator →