#42B4BC#42B4BC

#42B4BC is a light, moderate teal. Relative luminance 0.374; OKLCH L 71.0% C 0.101 H 201.8°. Best body text is #000000 at 8.49:1 contrast (WCAG AA passes).

Color values

HEX	#42B4BC
RGB	rgb(66, 180, 188)
HSL	hsl(184, 48%, 50%)
HSV	hsv(184, 65%, 74%)
CMYK	cmyk(64.9%, 4.3%, 0%, 26.3%)
CIE-LAB	lab(67.60, -29.07, -13.52)
CIE-LCH	lch(67.60, 32.06, 204.95°)
OKLab	oklab(70.96% -0.094 -0.0375)
OKLCH	oklch(70.96% 0.101 201.8)
XYZ	xyz(27.6412, 37.4286, 53.3349)
Luminance	0.3743 (WCAG relative)
Temperature	cool
Family	teal

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#42B4BC #BC4A42

analogous

#42BC87 #42B4BC #4277BC

triadic

#42B4BC #BC42B4 #B4BC42

tetradic

#42B4BC #8742BC #BC4A42 #77BC42

square

#42B4BC #8742BC #BC4A42 #77BC42

split-complementary

#42B4BC #BC4277 #BC8742

monochromatic

#225D61 #32898F #42B4BC #6FC6CC #9CD8DC

Accessibility & contrast

On white

2.47

#42B4BC on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

8.49

#42B4BC on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #42B4BC

8.49:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##42B4BC	#FFFFFF	#000000	##000000
##42B4BC	1.00	2.47	8.49	8.49
#FFFFFF	2.47	1.00	21.00	21.00
#000000	8.49	21.00	1.00	1.00
##000000	8.49	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#A7ACBD

Deuteranopia (green-blind)

#949FBD

Tritanopia (blue-blind)

#00BBB6

Achromatopsia (no color)

#A5A5A5

Design tokens & code

CSS

--color: #42b4bc;
/* rgb */ color: rgb(66, 180, 188);
/* oklch */ color: oklch(71.0% 0.101 201.8);

Tailwind

colors: {
  custom: {
    50: '#86cbd0',
    500: '#42b4bc',
    950: '#000000',
  },
}

SCSS

$custom: #42b4bc;
$custom-light: #86cbd0;
$custom-dark: #000000;

JSON

{
  "hex": "#42b4bc",
  "rgb": {
    "r": 66,
    "g": 180,
    "b": 188
  },
  "hsl": {
    "h": 183.934,
    "s": 48.031,
    "l": 49.804
  },
  "oklch": {
    "l": 0.7096,
    "c": 0.10116,
    "h": 201.8
  },
  "luminance": 0.37432
}

Semantic roles & 50–950 ramp

primary

#42B4BC

secondary

#C99591

accent

#5950D8

background

#F8FCFC

surface

#F0F8F9

border

#CBD1D2

text

#0C1314

muted

#7D8282

Preview Lab

Preview with #42B4BC

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

Preview Lab → · Contrast checker → · Palette generator →