#42BCB5#42BCB5

#42BCB5 is a light, moderate teal. Relative luminance 0.405; OKLCH L 72.7% C 0.107 H 189.6°. Best body text is #000000 at 9.09:1 contrast (WCAG AA passes).

Color values

HEX	#42BCB5
RGB	rgb(66, 188, 181)
HSL	hsl(177, 48%, 50%)
HSV	hsv(177, 65%, 74%)
CMYK	cmyk(64.9%, 0%, 3.7%, 26.3%)
CIE-LAB	lab(69.79, -34.88, -6.39)
CIE-LCH	lch(69.79, 35.46, 190.38°)
OKLab	oklab(72.67% -0.1053 -0.0179)
OKLCH	oklch(72.67% 0.107 189.6)
XYZ	xyz(28.5667, 40.4577, 50.0107)
Luminance	0.4046 (WCAG relative)
Temperature	cool
Family	teal

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#42BCB5 #BC4249

analogous

#42BC78 #42BCB5 #4286BC

triadic

#42BCB5 #B542BC #BCB542

tetradic

#42BCB5 #7842BC #BC4249 #86BC42

square

#42BCB5 #7842BC #BC4249 #86BC42

split-complementary

#42BCB5 #BC4286 #BC7842

monochromatic

#22615E #328F89 #42BCB5 #6FCCC7 #9CDCD9

Accessibility & contrast

On white

2.31

#42BCB5 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

9.09

#42BCB5 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #42BCB5

9.09:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##42BCB5	#FFFFFF	#000000	##000000
##42BCB5	1.00	2.31	9.09	9.09
#FFFFFF	2.31	1.00	21.00	21.00
#000000	9.09	21.00	1.00	1.00
##000000	9.09	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#B2B2B5

Deuteranopia (green-blind)

#9FA5B6

Tritanopia (blue-blind)

#00C1BA

Achromatopsia (no color)

#ABABAB

Design tokens & code

CSS

--color: #42bcb5;
/* rgb */ color: rgb(66, 188, 181);
/* oklch */ color: oklch(72.7% 0.107 189.6);

Tailwind

colors: {
  custom: {
    50: '#86d0cb',
    500: '#42bcb5',
    950: '#000000',
  },
}

SCSS

$custom: #42bcb5;
$custom-light: #86d0cb;
$custom-dark: #000000;

JSON

{
  "hex": "#42bcb5",
  "rgb": {
    "r": 66,
    "g": 188,
    "b": 181
  },
  "hsl": {
    "h": 176.557,
    "s": 48.031,
    "l": 49.804
  },
  "oklch": {
    "l": 0.72668,
    "c": 0.10681,
    "h": 189.6
  },
  "luminance": 0.40461
}

Semantic roles & 50–950 ramp

primary

#42BCB5

secondary

#C99194

accent

#5058D8

background

#F8FCFC

surface

#F0F9F8

border

#CBD2D1

text

#0C1413

muted

#7D8282

Preview Lab

Preview with #42BCB5

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

Preview Lab → · Contrast checker → · Palette generator →