#42B4C9#42B4C9

#42B4C9 is a light, moderate teal. Relative luminance 0.380; OKLCH L 71.5% C 0.105 H 212.2°. Best body text is #000000 at 8.60:1 contrast (WCAG AA passes).

Color values

HEX	#42B4C9
RGB	rgb(66, 180, 201)
HSL	hsl(189, 56%, 52%)
HSV	hsv(189, 67%, 79%)
CMYK	cmyk(67.2%, 10.4%, 0%, 21.2%)
CIE-LAB	lab(68.03, -25.19, -20.04)
CIE-LCH	lch(68.03, 32.19, 218.51°)
OKLab	oklab(71.45% -0.0886 -0.0557)
OKLCH	oklch(71.45% 0.105 212.2)
XYZ	xyz(29.1062, 38.0146, 61.0506)
Luminance	0.3802 (WCAG relative)
Temperature	cool
Family	teal

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#42B4C9 #C95742

analogous

#42C99A #42B4C9 #4271C9

triadic

#42B4C9 #C942B4 #B4C942

tetradic

#42B4C9 #9A42C9 #C95742 #71C942

square

#42B4C9 #9A42C9 #C95742 #71C942

split-complementary

#42B4C9 #C94271 #C99A42

monochromatic

#206470 #2E8EA0 #42B4C9 #72C7D7 #A1DAE4

Accessibility & contrast

On white

2.44

#42B4C9 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

8.60

#42B4C9 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #42B4C9

8.60:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##42B4C9	#FFFFFF	#000000	##000000
##42B4C9	1.00	2.44	8.60	8.60
#FFFFFF	2.44	1.00	21.00	21.00
#000000	8.60	21.00	1.00	1.00
##000000	8.60	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#A4AECA

Deuteranopia (green-blind)

#90A0C9

Tritanopia (blue-blind)

#00BDBA

Achromatopsia (no color)

#A6A6A6

Design tokens & code

CSS

--color: #42b4c9;
/* rgb */ color: rgb(66, 180, 201);
/* oklch */ color: oklch(71.5% 0.105 212.2);

Tailwind

colors: {
  custom: {
    50: '#87cad9',
    500: '#42b4c9',
    950: '#000000',
  },
}

SCSS

$custom: #42b4c9;
$custom-light: #87cad9;
$custom-dark: #000000;

JSON

{
  "hex": "#42b4c9",
  "rgb": {
    "r": 66,
    "g": 180,
    "b": 201
  },
  "hsl": {
    "h": 189.333,
    "s": 55.556,
    "l": 52.353
  },
  "oklch": {
    "l": 0.71454,
    "c": 0.10463,
    "h": 212.2
  },
  "luminance": 0.38018
}

Semantic roles & 50–950 ramp

primary

#42B4C9

secondary

#D19F96

accent

#6049DF

background

#F8FCFD

surface

#F0F8FA

border

#CBD1D3

text

#0D1314

muted

#7D8283

Preview Lab

Preview with #42B4C9

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

Preview Lab → · Contrast checker → · Palette generator →