#42C8DD#42C8DD

#42C8DD is a light, moderate teal. Relative luminance 0.477; OKLCH L 77.0% C 0.116 H 210.1°. Best body text is #000000 at 10.54:1 contrast (WCAG AA passes).

Color values

HEX	#42C8DD
RGB	rgb(66, 200, 221)
HSL	hsl(188, 70%, 56%)
HSV	hsv(188, 70%, 87%)
CMYK	cmyk(70.1%, 9.5%, 0%, 13.3%)
CIE-LAB	lab(74.62, -29.04, -20.93)
CIE-LCH	lch(74.62, 35.80, 215.78°)
OKLab	oklab(76.99% -0.1005 -0.0582)
OKLCH	oklch(76.99% 0.116 210.1)
XYZ	xyz(35.9466, 47.6831, 75.7019)
Luminance	0.4769 (WCAG relative)
Temperature	cool
Family	teal

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#42C8DD #DD5742

analogous

#42DDA5 #42C8DD #427BDD

triadic

#42C8DD #DD42C8 #C8DD42

tetradic

#42C8DD #A542DD #DD5742 #7BDD42

square

#42C8DD #A542DD #DD5742 #7BDD42

split-complementary

#42C8DD #DD427B #DDA542

monochromatic

#197C8C #22AABF #42C8DD #76D7E6 #AAE6F0

Accessibility & contrast

On white

1.99

#42C8DD on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

10.54

#42C8DD on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #42C8DD

10.54:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##42C8DD	#FFFFFF	#000000	##000000
##42C8DD	1.00	1.99	10.54	10.54
#FFFFFF	1.99	1.00	21.00	21.00
#000000	10.54	21.00	1.00	1.00
##000000	10.54	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#B6C1DE

Deuteranopia (green-blind)

#A0B1DD

Tritanopia (blue-blind)

#00D1CE

Achromatopsia (no color)

#B8B8B8

Design tokens & code

CSS

--color: #42c8dd;
/* rgb */ color: rgb(66, 200, 221);
/* oklch */ color: oklch(77.0% 0.116 210.1);

Tailwind

colors: {
  custom: {
    50: '#8bd9e7',
    500: '#42c8dd',
    950: '#000000',
  },
}

SCSS

$custom: #42c8dd;
$custom-light: #8bd9e7;
$custom-dark: #000000;

JSON

{
  "hex": "#42c8dd",
  "rgb": {
    "r": 66,
    "g": 200,
    "b": 221
  },
  "hsl": {
    "h": 188.129,
    "s": 69.507,
    "l": 56.275
  },
  "oklch": {
    "l": 0.76993,
    "c": 0.11613,
    "h": 210.1
  },
  "luminance": 0.47687
}

Semantic roles & 50–950 ramp

primary

#42C8DD

secondary

#DDA69D

accent

#533BEC

background

#F9FDFE

surface

#F2FAFC

border

#CCD3D5

text

#0D1416

muted

#7E8384

Preview Lab

Preview with #42C8DD

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

Preview Lab → · Contrast checker → · Palette generator →