#42B9C8#42B9C8

#42B9C8 is a light, moderate teal. Relative luminance 0.400; OKLCH L 72.6% C 0.106 H 207.0°. Best body text is #000000 at 9.01:1 contrast (WCAG AA passes).

Color values

HEX	#42B9C8
RGB	rgb(66, 185, 200)
HSL	hsl(187, 55%, 52%)
HSV	hsv(187, 67%, 78%)
CMYK	cmyk(67%, 7.5%, 0%, 21.6%)
CIE-LAB	lab(69.49, -27.98, -17.28)
CIE-LCH	lch(69.49, 32.89, 211.70°)
OKLab	oklab(72.61% -0.0941 -0.048)
OKLCH	oklch(72.61% 0.106 207)
XYZ	xyz(30.0166, 40.0229, 60.7756)
Luminance	0.4003 (WCAG relative)
Temperature	cool
Family	teal

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#42B9C8 #C85142

analogous

#42C894 #42B9C8 #4276C8

triadic

#42B9C8 #C842B9 #B9C842

tetradic

#42B9C8 #9442C8 #C85142 #76C842

square

#42B9C8 #9442C8 #C85142 #76C842

split-complementary

#42B9C8 #C84276 #C89442

monochromatic

#20666F #2E929F #42B9C8 #71CBD6 #A1DCE4

Accessibility & contrast

On white

2.33

#42B9C8 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

9.01

#42B9C8 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #42B9C8

9.01:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##42B9C8	#FFFFFF	#000000	##000000
##42B9C8	1.00	2.33	9.01	9.01
#FFFFFF	2.33	1.00	21.00	21.00
#000000	9.01	21.00	1.00	1.00
##000000	9.01	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#AAB2C9

Deuteranopia (green-blind)

#96A4C8

Tritanopia (blue-blind)

#00C1BD

Achromatopsia (no color)

#AAAAAA

Design tokens & code

CSS

--color: #42b9c8;
/* rgb */ color: rgb(66, 185, 200);
/* oklch */ color: oklch(72.6% 0.106 207.0);

Tailwind

colors: {
  custom: {
    50: '#87ced8',
    500: '#42b9c8',
    950: '#000000',
  },
}

SCSS

$custom: #42b9c8;
$custom-light: #87ced8;
$custom-dark: #000000;

JSON

{
  "hex": "#42b9c8",
  "rgb": {
    "r": 66,
    "g": 185,
    "b": 200
  },
  "hsl": {
    "h": 186.716,
    "s": 54.918,
    "l": 52.157
  },
  "oklch": {
    "l": 0.72615,
    "c": 0.10559,
    "h": 207
  },
  "luminance": 0.40026
}

Semantic roles & 50–950 ramp

primary

#42B9C8

secondary

#D09C96

accent

#5A4ADE

background

#F9FCFD

surface

#F1F9FA

border

#CBD2D3

text

#0D1314

muted

#7E8283

Preview Lab

Preview with #42B9C8

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

Preview Lab → · Contrast checker → · Palette generator →