#42BFDE#42BFDE

#42BFDE is a light, moderate cyan. Relative luminance 0.437; OKLCH L 74.9% C 0.116 H 217.9°. Best body text is #000000 at 9.74:1 contrast (WCAG AA passes).

Color values

HEX	#42BFDE
RGB	rgb(66, 191, 222)
HSL	hsl(192, 70%, 56%)
HSV	hsv(192, 70%, 87%)
CMYK	cmyk(70.3%, 14%, 0%, 12.9%)
CIE-LAB	lab(72.02, -24.27, -25.44)
CIE-LCH	lch(72.02, 35.16, 226.36°)
OKLab	oklab(74.91% -0.0913 -0.071)
OKLCH	oklch(74.91% 0.116 217.9)
XYZ	xyz(34.0569, 43.6899, 75.7312)
Luminance	0.4369 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#42BFDE #DE6142

analogous

#42DEAF #42BFDE #4271DE

triadic

#42BFDE #DE42BF #BFDE42

tetradic

#42BFDE #AF42DE #DE6142 #71DE42

square

#42BFDE #AF42DE #DE6142 #71DE42

split-complementary

#42BFDE #DE4271 #DEAF42

monochromatic

#19768D #22A1C1 #42BFDE #76D1E7 #AAE2F0

Accessibility & contrast

On white

2.16

#42BFDE on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

9.74

#42BFDE on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #42BFDE

9.74:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##42BFDE	#FFFFFF	#000000	##000000
##42BFDE	1.00	2.16	9.74	9.74
#FFFFFF	2.16	1.00	21.00	21.00
#000000	9.74	21.00	1.00	1.00
##000000	9.74	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#ABBAE0

Deuteranopia (green-blind)

#95AADE

Tritanopia (blue-blind)

#00CAC9

Achromatopsia (no color)

#B1B1B1

Design tokens & code

CSS

--color: #42bfde;
/* rgb */ color: rgb(66, 191, 222);
/* oklch */ color: oklch(74.9% 0.116 217.9);

Tailwind

colors: {
  custom: {
    50: '#8ad2e8',
    500: '#42bfde',
    950: '#000000',
  },
}

SCSS

$custom: #42bfde;
$custom-light: #8ad2e8;
$custom-dark: #000000;

JSON

{
  "hex": "#42bfde",
  "rgb": {
    "r": 66,
    "g": 191,
    "b": 222
  },
  "hsl": {
    "h": 191.923,
    "s": 70.27,
    "l": 56.471
  },
  "oklch": {
    "l": 0.74908,
    "c": 0.11563,
    "h": 217.9
  },
  "luminance": 0.43694
}

Semantic roles & 50–950 ramp

primary

#42BFDE

secondary

#DEAB9E

accent

#5E3BED

background

#F9FCFE

surface

#F2F9FC

border

#CCD2D5

text

#0D1416

muted

#7E8284

Preview Lab

Preview with #42BFDE

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

Preview Lab → · Contrast checker → · Palette generator →