#42B1BC#42B1BC

#42B1BC is a light, moderate teal. Relative luminance 0.362; OKLCH L 70.2% C 0.100 H 204.4°. Best body text is #000000 at 8.25:1 contrast (WCAG AA passes).

Color values

HEX	#42B1BC
RGB	rgb(66, 177, 188)
HSL	hsl(185, 48%, 50%)
HSV	hsv(185, 65%, 74%)
CMYK	cmyk(64.9%, 5.9%, 0%, 26.3%)
CIE-LAB	lab(66.70, -27.59, -14.88)
CIE-LCH	lch(66.70, 31.35, 208.34°)
OKLab	oklab(70.23% -0.0908 -0.0413)
OKLCH	oklch(70.23% 0.1 204.4)
XYZ	xyz(27.0421, 36.2304, 53.1352)
Luminance	0.3623 (WCAG relative)
Temperature	cool
Family	teal

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#42B1BC #BC4D42

analogous

#42BC8A #42B1BC #4274BC

triadic

#42B1BC #BC42B1 #B1BC42

tetradic

#42B1BC #8A42BC #BC4D42 #74BC42

square

#42B1BC #8A42BC #BC4D42 #74BC42

split-complementary

#42B1BC #BC4274 #BC8A42

monochromatic

#225C61 #32868F #42B1BC #6FC4CC #9CD6DC

Accessibility & contrast

On white

2.55

#42B1BC on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

8.25

#42B1BC on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #42B1BC

8.25:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##42B1BC	#FFFFFF	#000000	##000000
##42B1BC	1.00	2.55	8.25	8.25
#FFFFFF	2.55	1.00	21.00	21.00
#000000	8.25	21.00	1.00	1.00
##000000	8.25	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#A3AABD

Deuteranopia (green-blind)

#919CBC

Tritanopia (blue-blind)

#00B8B4

Achromatopsia (no color)

#A2A2A2

Design tokens & code

CSS

--color: #42b1bc;
/* rgb */ color: rgb(66, 177, 188);
/* oklch */ color: oklch(70.2% 0.100 204.4);

Tailwind

colors: {
  custom: {
    50: '#85c8d0',
    500: '#42b1bc',
    950: '#000000',
  },
}

SCSS

$custom: #42b1bc;
$custom-light: #85c8d0;
$custom-dark: #000000;

JSON

{
  "hex": "#42b1bc",
  "rgb": {
    "r": 66,
    "g": 177,
    "b": 188
  },
  "hsl": {
    "h": 185.41,
    "s": 48.031,
    "l": 49.804
  },
  "oklch": {
    "l": 0.70232,
    "c": 0.09977,
    "h": 204.4
  },
  "luminance": 0.36233
}

Semantic roles & 50–950 ramp

primary

#42B1BC

secondary

#C99691

accent

#5C50D8

background

#F8FCFC

surface

#F0F8F9

border

#CBD1D2

text

#0C1314

muted

#7D8282

Preview Lab

Preview with #42B1BC

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

Preview Lab → · Contrast checker → · Palette generator →