#42BDDA#42BDDA

#42BDDA is a light, moderate cyan. Relative luminance 0.426; OKLCH L 74.3% C 0.113 H 216.8°. Best body text is #000000 at 9.52:1 contrast (WCAG AA passes).

Color values

HEX	#42BDDA
RGB	rgb(66, 189, 218)
HSL	hsl(191, 67%, 56%)
HSV	hsv(191, 70%, 85%)
CMYK	cmyk(69.7%, 13.3%, 0%, 14.5%)
CIE-LAB	lab(71.29, -24.50, -24.38)
CIE-LCH	lch(71.29, 34.56, 224.86°)
OKLab	oklab(74.27% -0.0909 -0.068)
OKLCH	oklch(74.27% 0.113 216.8)
XYZ	xyz(33.0940, 42.6116, 72.7968)
Luminance	0.4261 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#42BDDA #DA5F42

analogous

#42DAAB #42BDDA #4271DA

triadic

#42BDDA #DA42BD #BDDA42

tetradic

#42BDDA #AB42DA #DA5F42 #71DA42

square

#42BDDA #AB42DA #DA5F42 #71DA42

split-complementary

#42BDDA #DA4271 #DAAB42

monochromatic

#1A7287 #249EBA #42BDDA #75CFE4 #A8E1EE

Accessibility & contrast

On white

2.21

#42BDDA on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

9.52

#42BDDA on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #42BDDA

9.52:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##42BDDA	#FFFFFF	#000000	##000000
##42BDDA	1.00	2.21	9.52	9.52
#FFFFFF	2.21	1.00	21.00	21.00
#000000	9.52	21.00	1.00	1.00
##000000	9.52	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#AAB7DC

Deuteranopia (green-blind)

#94A8DA

Tritanopia (blue-blind)

#00C7C6

Achromatopsia (no color)

#AFAFAF

Design tokens & code

CSS

--color: #42bdda;
/* rgb */ color: rgb(66, 189, 218);
/* oklch */ color: oklch(74.3% 0.113 216.8);

Tailwind

colors: {
  custom: {
    50: '#8ad1e5',
    500: '#42bdda',
    950: '#000000',
  },
}

SCSS

$custom: #42bdda;
$custom-light: #8ad1e5;
$custom-dark: #000000;

JSON

{
  "hex": "#42bdda",
  "rgb": {
    "r": 66,
    "g": 189,
    "b": 218
  },
  "hsl": {
    "h": 191.447,
    "s": 67.257,
    "l": 55.686
  },
  "oklch": {
    "l": 0.74274,
    "c": 0.11348,
    "h": 216.8
  },
  "luminance": 0.42615
}

Semantic roles & 50–950 ramp

primary

#42BDDA

secondary

#DBA89C

accent

#5F3EEA

background

#F9FCFE

surface

#F1F9FC

border

#CBD2D5

text

#0D1415

muted

#7E8284

Preview Lab

Preview with #42BDDA

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

Preview Lab → · Contrast checker → · Palette generator →