#42BBB5#42BBB5

#42BBB5 is a light, moderate teal. Relative luminance 0.400; OKLCH L 72.4% C 0.106 H 190.4°. Best body text is #000000 at 9.01:1 contrast (WCAG AA passes).

Color values

HEX	#42BBB5
RGB	rgb(66, 187, 181)
HSL	hsl(177, 48%, 50%)
HSV	hsv(177, 65%, 73%)
CMYK	cmyk(64.7%, 0%, 3.2%, 26.7%)
CIE-LAB	lab(69.49, -34.41, -6.84)
CIE-LCH	lch(69.49, 35.09, 191.24°)
OKLab	oklab(72.42% -0.1043 -0.0191)
OKLCH	oklch(72.42% 0.106 190.4)
XYZ	xyz(28.3538, 40.0320, 49.9397)
Luminance	0.4003 (WCAG relative)
Temperature	cool
Family	teal

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#42BBB5 #BB4248

analogous

#42BB79 #42BBB5 #4284BB

triadic

#42BBB5 #B542BB #BBB542

tetradic

#42BBB5 #7942BB #BB4248 #84BB42

square

#42BBB5 #7942BB #BB4248 #84BB42

split-complementary

#42BBB5 #BB4284 #BB7942

monochromatic

#22615D #328E89 #42BBB5 #6ECCC7 #9CDCD9

Accessibility & contrast

On white

2.33

#42BBB5 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

9.01

#42BBB5 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #42BBB5

9.01:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##42BBB5	#FFFFFF	#000000	##000000
##42BBB5	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)

#B0B2B5

Deuteranopia (green-blind)

#9EA4B6

Tritanopia (blue-blind)

#00C0B9

Achromatopsia (no color)

#AAAAAA

Design tokens & code

CSS

--color: #42bbb5;
/* rgb */ color: rgb(66, 187, 181);
/* oklch */ color: oklch(72.4% 0.106 190.4);

Tailwind

colors: {
  custom: {
    50: '#86d0cb',
    500: '#42bbb5',
    950: '#000000',
  },
}

SCSS

$custom: #42bbb5;
$custom-light: #86d0cb;
$custom-dark: #000000;

JSON

{
  "hex": "#42bbb5",
  "rgb": {
    "r": 66,
    "g": 187,
    "b": 181
  },
  "hsl": {
    "h": 177.025,
    "s": 47.826,
    "l": 49.608
  },
  "oklch": {
    "l": 0.72423,
    "c": 0.106,
    "h": 190.4
  },
  "luminance": 0.40035
}

Semantic roles & 50–950 ramp

primary

#42BBB5

secondary

#C89193

accent

#5057D7

background

#F8FCFC

surface

#F0F9F8

border

#CBD2D1

text

#0C1413

muted

#7D8282

Preview Lab

Preview with #42BBB5

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

Preview Lab → · Contrast checker → · Palette generator →