#42B8BC#42B8BC

#42B8BC is a light, moderate teal. Relative luminance 0.391; OKLCH L 71.9% C 0.103 H 198.3°. Best body text is #000000 at 8.81:1 contrast (WCAG AA passes).

Color values

HEX	#42B8BC
RGB	rgb(66, 184, 188)
HSL	hsl(182, 48%, 50%)
HSV	hsv(182, 65%, 74%)
CMYK	cmyk(64.9%, 2.1%, 0%, 26.3%)
CIE-LAB	lab(68.80, -31.01, -11.72)
CIE-LCH	lch(68.80, 33.15, 200.70°)
OKLab	oklab(71.93% -0.0981 -0.0325)
OKLCH	oklch(71.93% 0.103 198.3)
XYZ	xyz(28.4604, 39.0669, 53.6080)
Luminance	0.3907 (WCAG relative)
Temperature	cool
Family	teal

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#42B8BC #BC4642

analogous

#42BC83 #42B8BC #427BBC

triadic

#42B8BC #BC42B8 #B8BC42

tetradic

#42B8BC #8342BC #BC4642 #7BBC42

square

#42B8BC #8342BC #BC4642 #7BBC42

split-complementary

#42B8BC #BC427B #BC8342

monochromatic

#225F61 #328C8F #42B8BC #6FC9CC #9CDADC

Accessibility & contrast

On white

2.38

#42B8BC on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

8.81

#42B8BC on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #42B8BC

8.81:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##42B8BC	#FFFFFF	#000000	##000000
##42B8BC	1.00	2.38	8.81	8.81
#FFFFFF	2.38	1.00	21.00	21.00
#000000	8.81	21.00	1.00	1.00
##000000	8.81	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#ABB0BC

Deuteranopia (green-blind)

#99A2BD

Tritanopia (blue-blind)

#00BEB9

Achromatopsia (no color)

#A8A8A8

Design tokens & code

CSS

--color: #42b8bc;
/* rgb */ color: rgb(66, 184, 188);
/* oklch */ color: oklch(71.9% 0.103 198.3);

Tailwind

colors: {
  custom: {
    50: '#86cdd0',
    500: '#42b8bc',
    950: '#000000',
  },
}

SCSS

$custom: #42b8bc;
$custom-light: #86cdd0;
$custom-dark: #000000;

JSON

{
  "hex": "#42b8bc",
  "rgb": {
    "r": 66,
    "g": 184,
    "b": 188
  },
  "hsl": {
    "h": 181.967,
    "s": 48.031,
    "l": 49.804
  },
  "oklch": {
    "l": 0.71932,
    "c": 0.10334,
    "h": 198.3
  },
  "luminance": 0.3907
}

Semantic roles & 50–950 ramp

primary

#42B8BC

secondary

#C99391

accent

#5550D8

background

#F8FCFC

surface

#F0F9F9

border

#CBD2D2

text

#0C1314

muted

#7D8282

Preview Lab

Preview with #42B8BC

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

Preview Lab → · Contrast checker → · Palette generator →