#42C2DF#42C2DF

#42C2DF is a light, moderate cyan. Relative luminance 0.451; OKLCH L 75.7% C 0.116 H 216.1°. Best body text is #000000 at 10.01:1 contrast (WCAG AA passes).

Color values

HEX	#42C2DF
RGB	rgb(66, 194, 223)
HSL	hsl(191, 71%, 57%)
HSV	hsv(191, 70%, 87%)
CMYK	cmyk(70.4%, 13%, 0%, 12.5%)
CIE-LAB	lab(72.94, -25.46, -24.59)
CIE-LCH	lch(72.94, 35.40, 224.00°)
OKLab	oklab(75.66% -0.0938 -0.0685)
OKLCH	oklch(75.66% 0.116 216.1)
XYZ	xyz(34.8522, 45.0655, 76.6594)
Luminance	0.4507 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#42C2DF #DF5F42

analogous

#42DFAE #42C2DF #4274DF

triadic

#42C2DF #DF42C2 #C2DF42

tetradic

#42C2DF #AE42DF #DF5F42 #74DF42

square

#42C2DF #AE42DF #DF5F42 #74DF42

split-complementary

#42C2DF #DF4274 #DFAE42

monochromatic

#18798E #21A5C3 #42C2DF #76D3E8 #ABE4F1

Accessibility & contrast

On white

2.10

#42C2DF on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

10.01

#42C2DF on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #42C2DF

10.01:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##42C2DF	#FFFFFF	#000000	##000000
##42C2DF	1.00	2.10	10.01	10.01
#FFFFFF	2.10	1.00	21.00	21.00
#000000	10.01	21.00	1.00	1.00
##000000	10.01	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#AEBCE1

Deuteranopia (green-blind)

#98ACDF

Tritanopia (blue-blind)

#00CCCB

Achromatopsia (no color)

#B3B3B3

Design tokens & code

CSS

--color: #42c2df;
/* rgb */ color: rgb(66, 194, 223);
/* oklch */ color: oklch(75.7% 0.116 216.1);

Tailwind

colors: {
  custom: {
    50: '#8bd4e9',
    500: '#42c2df',
    950: '#000000',
  },
}

SCSS

$custom: #42c2df;
$custom-light: #8bd4e9;
$custom-dark: #000000;

JSON

{
  "hex": "#42c2df",
  "rgb": {
    "r": 66,
    "g": 194,
    "b": 223
  },
  "hsl": {
    "h": 191.083,
    "s": 71.041,
    "l": 56.667
  },
  "oklch": {
    "l": 0.75655,
    "c": 0.11621,
    "h": 216.1
  },
  "luminance": 0.4507
}

Semantic roles & 50–950 ramp

primary

#42C2DF

secondary

#DFAA9E

accent

#5B3AEE

background

#F9FDFE

surface

#F2FAFC

border

#CCD3D5

text

#0D1416

muted

#7E8384

Preview Lab

Preview with #42C2DF

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

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