#42B9CF#42B9CF

#42B9CF is a light, moderate teal. Relative luminance 0.404; OKLCH L 72.9% C 0.108 H 212.3°. Best body text is #000000 at 9.07:1 contrast (WCAG AA passes).

Color values

HEX	#42B9CF
RGB	rgb(66, 185, 207)
HSL	hsl(189, 59%, 54%)
HSV	hsv(189, 68%, 81%)
CMYK	cmyk(68.1%, 10.6%, 0%, 18.8%)
CIE-LAB	lab(69.72, -25.87, -20.76)
CIE-LCH	lch(69.72, 33.17, 218.75°)
OKLab	oklab(72.89% -0.0912 -0.0577)
OKLCH	oklch(72.89% 0.108 212.3)
XYZ	xyz(30.8535, 40.3577, 65.1831)
Luminance	0.4036 (WCAG relative)
Temperature	cool
Family	teal

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#42B9CF #CF5842

analogous

#42CF9E #42B9CF #4272CF

triadic

#42B9CF #CF42B9 #B9CF42

tetradic

#42B9CF #9E42CF #CF5842 #72CF42

square

#42B9CF #9E42CF #CF5842 #72CF42

split-complementary

#42B9CF #CF4272 #CF9E42

monochromatic

#1F6A78 #2B95A9 #42B9CF #73CBDB #A4DDE8

Accessibility & contrast

On white

2.31

#42B9CF on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

9.07

#42B9CF on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #42B9CF

9.07:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##42B9CF	#FFFFFF	#000000	##000000
##42B9CF	1.00	2.31	9.07	9.07
#FFFFFF	2.31	1.00	21.00	21.00
#000000	9.07	21.00	1.00	1.00
##000000	9.07	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#A8B3D0

Deuteranopia (green-blind)

#94A4CF

Tritanopia (blue-blind)

#00C2C0

Achromatopsia (no color)

#AAAAAA

Design tokens & code

CSS

--color: #42b9cf;
/* rgb */ color: rgb(66, 185, 207);
/* oklch */ color: oklch(72.9% 0.108 212.3);

Tailwind

colors: {
  custom: {
    50: '#88cedd',
    500: '#42b9cf',
    950: '#000000',
  },
}

SCSS

$custom: #42b9cf;
$custom-light: #88cedd;
$custom-dark: #000000;

JSON

{
  "hex": "#42b9cf",
  "rgb": {
    "r": 66,
    "g": 185,
    "b": 207
  },
  "hsl": {
    "h": 189.362,
    "s": 59.494,
    "l": 53.529
  },
  "oklch": {
    "l": 0.72885,
    "c": 0.10796,
    "h": 212.3
  },
  "luminance": 0.40361
}

Semantic roles & 50–950 ramp

primary

#42B9CF

secondary

#D5A298

accent

#5E45E3

background

#F9FCFD

surface

#F1F9FB

border

#CBD2D4

text

#0D1315

muted

#7E8283

Preview Lab

Preview with #42B9CF

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

Preview Lab → · Contrast checker → · Palette generator →