#42B7BB#42B7BB

#42B7BB is a light, moderate teal. Relative luminance 0.386; OKLCH L 71.7% C 0.103 H 198.4°. Best body text is #000000 at 8.72:1 contrast (WCAG AA passes).

Color values

HEX	#42B7BB
RGB	rgb(66, 183, 187)
HSL	hsl(182, 48%, 50%)
HSV	hsv(182, 65%, 73%)
CMYK	cmyk(64.7%, 2.1%, 0%, 26.7%)
CIE-LAB	lab(68.47, -30.82, -11.67)
CIE-LCH	lch(68.47, 32.95, 200.74°)
OKLab	oklab(71.65% -0.0975 -0.0323)
OKLCH	oklch(71.65% 0.103 198.4)
XYZ	xyz(28.1460, 38.6100, 52.9732)
Luminance	0.3861 (WCAG relative)
Temperature	cool
Family	teal

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#42B7BB #BB4642

analogous

#42BB82 #42B7BB #427BBB

triadic

#42B7BB #BB42B7 #B7BB42

tetradic

#42B7BB #8242BB #BB4642 #7BBB42

square

#42B7BB #8242BB #BB4642 #7BBB42

split-complementary

#42B7BB #BB427B #BB8242

monochromatic

#225E61 #328B8E #42B7BB #6EC9CC #9CDADC

Accessibility & contrast

On white

2.41

#42B7BB on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

8.72

#42B7BB on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #42B7BB

8.72:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##42B7BB	#FFFFFF	#000000	##000000
##42B7BB	1.00	2.41	8.72	8.72
#FFFFFF	2.41	1.00	21.00	21.00
#000000	8.72	21.00	1.00	1.00
##000000	8.72	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#ABAFBB

Deuteranopia (green-blind)

#98A1BC

Tritanopia (blue-blind)

#00BDB8

Achromatopsia (no color)

#A7A7A7

Design tokens & code

CSS

--color: #42b7bb;
/* rgb */ color: rgb(66, 183, 187);
/* oklch */ color: oklch(71.7% 0.103 198.4);

Tailwind

colors: {
  custom: {
    50: '#86cdcf',
    500: '#42b7bb',
    950: '#000000',
  },
}

SCSS

$custom: #42b7bb;
$custom-light: #86cdcf;
$custom-dark: #000000;

JSON

{
  "hex": "#42b7bb",
  "rgb": {
    "r": 66,
    "g": 183,
    "b": 187
  },
  "hsl": {
    "h": 181.983,
    "s": 47.826,
    "l": 49.608
  },
  "oklch": {
    "l": 0.71653,
    "c": 0.10272,
    "h": 198.4
  },
  "luminance": 0.38613
}

Semantic roles & 50–950 ramp

primary

#42B7BB

secondary

#C89391

accent

#5550D7

background

#F8FCFC

surface

#F0F9F9

border

#CBD2D2

text

#0C1313

muted

#7D8282

Preview Lab

Preview with #42B7BB

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

Preview Lab → · Contrast checker → · Palette generator →