#42B8CF#42B8CF

#42B8CF is a light, moderate teal. Relative luminance 0.399; OKLCH L 72.6% C 0.108 H 213.2°. Best body text is #000000 at 8.99:1 contrast (WCAG AA passes).

Color values

HEX	#42B8CF
RGB	rgb(66, 184, 207)
HSL	hsl(190, 59%, 54%)
HSV	hsv(190, 68%, 81%)
CMYK	cmyk(68.1%, 11.1%, 0%, 18.8%)
CIE-LAB	lab(69.43, -25.37, -21.21)
CIE-LCH	lch(69.43, 33.07, 219.90°)
OKLab	oklab(72.65% -0.0902 -0.059)
OKLCH	oklch(72.65% 0.108 213.2)
XYZ	xyz(30.6450, 39.9408, 65.1137)
Luminance	0.3994 (WCAG relative)
Temperature	cool
Family	teal

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#42B8CF #CF5942

analogous

#42CF9F #42B8CF #4271CF

triadic

#42B8CF #CF42B8 #B8CF42

tetradic

#42B8CF #9F42CF #CF5942 #71CF42

square

#42B8CF #9F42CF #CF5942 #71CF42

split-complementary

#42B8CF #CF4271 #CF9F42

monochromatic

#1F6978 #2B94A9 #42B8CF #73CADB #A4DDE8

Accessibility & contrast

On white

2.34

#42B8CF on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

8.99

#42B8CF on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #42B8CF

8.99:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##42B8CF	#FFFFFF	#000000	##000000
##42B8CF	1.00	2.34	8.99	8.99
#FFFFFF	2.34	1.00	21.00	21.00
#000000	8.99	21.00	1.00	1.00
##000000	8.99	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#A7B2D0

Deuteranopia (green-blind)

#93A3CF

Tritanopia (blue-blind)

#00C1BF

Achromatopsia (no color)

#AAAAAA

Design tokens & code

CSS

--color: #42b8cf;
/* rgb */ color: rgb(66, 184, 207);
/* oklch */ color: oklch(72.6% 0.108 213.2);

Tailwind

colors: {
  custom: {
    50: '#88cddd',
    500: '#42b8cf',
    950: '#000000',
  },
}

SCSS

$custom: #42b8cf;
$custom-light: #88cddd;
$custom-dark: #000000;

JSON

{
  "hex": "#42b8cf",
  "rgb": {
    "r": 66,
    "g": 184,
    "b": 207
  },
  "hsl": {
    "h": 189.787,
    "s": 59.494,
    "l": 53.529
  },
  "oklch": {
    "l": 0.72647,
    "c": 0.1078,
    "h": 213.2
  },
  "luminance": 0.39944
}

Semantic roles & 50–950 ramp

primary

#42B8CF

secondary

#D5A298

accent

#5F45E3

background

#F9FCFD

surface

#F1F9FB

border

#CBD2D4

text

#0D1315

muted

#7E8283

Preview Lab

Preview with #42B8CF

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

Preview Lab → · Contrast checker → · Palette generator →