#42C9DD#42C9DD

#42C9DD is a light, moderate teal. Relative luminance 0.482; OKLCH L 77.2% C 0.116 H 209.3°. Best body text is #000000 at 10.63:1 contrast (WCAG AA passes).

Color values

HEX	#42C9DD
RGB	rgb(66, 201, 221)
HSL	hsl(188, 70%, 56%)
HSV	hsv(188, 70%, 87%)
CMYK	cmyk(70.1%, 9%, 0%, 13.3%)
CIE-LAB	lab(74.92, -29.53, -20.48)
CIE-LCH	lch(74.92, 35.94, 214.75°)
OKLab	oklab(77.23% -0.1015 -0.0569)
OKLCH	oklch(77.23% 0.116 209.3)
XYZ	xyz(36.1789, 48.1478, 75.7793)
Luminance	0.4815 (WCAG relative)
Temperature	cool
Family	teal

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#42C9DD #DD5642

analogous

#42DDA4 #42C9DD #427CDD

triadic

#42C9DD #DD42C9 #C9DD42

tetradic

#42C9DD #A442DD #DD5642 #7CDD42

square

#42C9DD #A442DD #DD5642 #7CDD42

split-complementary

#42C9DD #DD427C #DDA442

monochromatic

#197D8C #22ABBF #42C9DD #76D8E6 #AAE7F0

Accessibility & contrast

On white

1.98

#42C9DD on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

10.63

#42C9DD on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #42C9DD

10.63:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##42C9DD	#FFFFFF	#000000	##000000
##42C9DD	1.00	1.98	10.63	10.63
#FFFFFF	1.98	1.00	21.00	21.00
#000000	10.63	21.00	1.00	1.00
##000000	10.63	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#B7C2DE

Deuteranopia (green-blind)

#A1B1DD

Tritanopia (blue-blind)

#00D2CF

Achromatopsia (no color)

#B8B8B8

Design tokens & code

CSS

--color: #42c9dd;
/* rgb */ color: rgb(66, 201, 221);
/* oklch */ color: oklch(77.2% 0.116 209.3);

Tailwind

colors: {
  custom: {
    50: '#8bd9e7',
    500: '#42c9dd',
    950: '#000000',
  },
}

SCSS

$custom: #42c9dd;
$custom-light: #8bd9e7;
$custom-dark: #000000;

JSON

{
  "hex": "#42c9dd",
  "rgb": {
    "r": 66,
    "g": 201,
    "b": 221
  },
  "hsl": {
    "h": 187.742,
    "s": 69.507,
    "l": 56.275
  },
  "oklch": {
    "l": 0.77229,
    "c": 0.11636,
    "h": 209.3
  },
  "luminance": 0.48152
}

Semantic roles & 50–950 ramp

primary

#42C9DD

secondary

#DDA69D

accent

#523BEC

background

#F9FDFE

surface

#F2FAFC

border

#CCD3D5

text

#0D1416

muted

#7E8384

Preview Lab

Preview with #42C9DD

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

Preview Lab → · Contrast checker → · Palette generator →