#42BCDA#42BCDA

#42BCDA is a light, moderate cyan. Relative luminance 0.422; OKLCH L 74.0% C 0.113 H 217.6°. Best body text is #000000 at 9.44:1 contrast (WCAG AA passes).

Color values

HEX	#42BCDA
RGB	rgb(66, 188, 218)
HSL	hsl(192, 67%, 56%)
HSV	hsv(192, 70%, 85%)
CMYK	cmyk(69.7%, 13.8%, 0%, 14.5%)
CIE-LAB	lab(71.00, -23.99, -24.83)
CIE-LCH	lch(71.00, 34.53, 225.98°)
OKLab	oklab(74.04% -0.0899 -0.0692)
OKLCH	oklch(74.04% 0.113 217.6)
XYZ	xyz(32.8796, 42.1829, 72.7253)
Luminance	0.4219 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#42BCDA #DA6042

analogous

#42DAAC #42BCDA #4270DA

triadic

#42BCDA #DA42BC #BCDA42

tetradic

#42BCDA #AC42DA #DA6042 #70DA42

square

#42BCDA #AC42DA #DA6042 #70DA42

split-complementary

#42BCDA #DA4270 #DAAC42

monochromatic

#1A7287 #249DBA #42BCDA #75CEE4 #A8E0EE

Accessibility & contrast

On white

2.23

#42BCDA on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

9.44

#42BCDA on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #42BCDA

9.44:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##42BCDA	#FFFFFF	#000000	##000000
##42BCDA	1.00	2.23	9.44	9.44
#FFFFFF	2.23	1.00	21.00	21.00
#000000	9.44	21.00	1.00	1.00
##000000	9.44	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#A8B7DC

Deuteranopia (green-blind)

#93A7DA

Tritanopia (blue-blind)

#00C6C5

Achromatopsia (no color)

#AEAEAE

Design tokens & code

CSS

--color: #42bcda;
/* rgb */ color: rgb(66, 188, 218);
/* oklch */ color: oklch(74.0% 0.113 217.6);

Tailwind

colors: {
  custom: {
    50: '#89d0e5',
    500: '#42bcda',
    950: '#000000',
  },
}

SCSS

$custom: #42bcda;
$custom-light: #89d0e5;
$custom-dark: #000000;

JSON

{
  "hex": "#42bcda",
  "rgb": {
    "r": 66,
    "g": 188,
    "b": 218
  },
  "hsl": {
    "h": 191.842,
    "s": 67.257,
    "l": 55.686
  },
  "oklch": {
    "l": 0.74038,
    "c": 0.11346,
    "h": 217.6
  },
  "luminance": 0.42187
}

Semantic roles & 50–950 ramp

primary

#42BCDA

secondary

#DBA99C

accent

#603EEA

background

#F9FCFE

surface

#F1F9FC

border

#CBD2D5

text

#0D1415

muted

#7E8284

Preview Lab

Preview with #42BCDA

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

Preview Lab → · Contrast checker → · Palette generator →