#42BBB4#42BBB4

#42BBB4 is a light, moderate teal. Relative luminance 0.400; OKLCH L 72.4% C 0.106 H 189.6°. Best body text is #000000 at 9.00:1 contrast (WCAG AA passes).

Color values

HEX	#42BBB4
RGB	rgb(66, 187, 180)
HSL	hsl(177, 48%, 50%)
HSV	hsv(177, 65%, 73%)
CMYK	cmyk(64.7%, 0%, 3.7%, 26.7%)
CIE-LAB	lab(69.46, -34.69, -6.33)
CIE-LCH	lch(69.46, 35.26, 190.34°)
OKLab	oklab(72.39% -0.1047 -0.0177)
OKLCH	oklch(72.39% 0.106 189.6)
XYZ	xyz(28.2516, 39.9911, 49.4013)
Luminance	0.3999 (WCAG relative)
Temperature	cool
Family	teal

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#42BBB4 #BB4249

analogous

#42BB78 #42BBB4 #4286BB

triadic

#42BBB4 #B442BB #BBB442

tetradic

#42BBB4 #7842BB #BB4249 #86BB42

square

#42BBB4 #7842BB #BB4249 #86BB42

split-complementary

#42BBB4 #BB4286 #BB7842

monochromatic

#22615D #328E88 #42BBB4 #6ECCC7 #9CDCD8

Accessibility & contrast

On white

2.33

#42BBB4 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

9.00

#42BBB4 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #42BBB4

9.00:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##42BBB4	#FFFFFF	#000000	##000000
##42BBB4	1.00	2.33	9.00	9.00
#FFFFFF	2.33	1.00	21.00	21.00
#000000	9.00	21.00	1.00	1.00
##000000	9.00	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#B1B1B4

Deuteranopia (green-blind)

#9EA4B5

Tritanopia (blue-blind)

#00C0B9

Achromatopsia (no color)

#AAAAAA

Design tokens & code

CSS

--color: #42bbb4;
/* rgb */ color: rgb(66, 187, 180);
/* oklch */ color: oklch(72.4% 0.106 189.6);

Tailwind

colors: {
  custom: {
    50: '#86d0ca',
    500: '#42bbb4',
    950: '#000000',
  },
}

SCSS

$custom: #42bbb4;
$custom-light: #86d0ca;
$custom-dark: #000000;

JSON

{
  "hex": "#42bbb4",
  "rgb": {
    "r": 66,
    "g": 187,
    "b": 180
  },
  "hsl": {
    "h": 176.529,
    "s": 47.826,
    "l": 49.608
  },
  "oklch": {
    "l": 0.7239,
    "c": 0.1062,
    "h": 189.6
  },
  "luminance": 0.39994
}

Semantic roles & 50–950 ramp

primary

#42BBB4

secondary

#C89194

accent

#5058D7

background

#F8FCFC

surface

#F0F9F8

border

#CBD2D1

text

#0C1413

muted

#7D8282

Preview Lab

Preview with #42BBB4

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

Preview Lab → · Contrast checker → · Palette generator →