#42C1DB#42C1DB

#42C1DB is a light, moderate cyan. Relative luminance 0.444; OKLCH L 75.3% C 0.114 H 214.2°. Best body text is #000000 at 9.88:1 contrast (WCAG AA passes).

Color values

HEX	#42C1DB
RGB	rgb(66, 193, 219)
HSL	hsl(190, 68%, 56%)
HSV	hsv(190, 70%, 86%)
CMYK	cmyk(69.9%, 11.9%, 0%, 14.1%)
CIE-LAB	lab(72.50, -26.19, -23.08)
CIE-LCH	lch(72.50, 34.91, 221.38°)
OKLab	oklab(75.26% -0.0944 -0.0643)
OKLCH	oklch(75.26% 0.114 214.2)
XYZ	xyz(34.0975, 44.4087, 73.7788)
Luminance	0.4441 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#42C1DB #DB5C42

analogous

#42DBA8 #42C1DB #4274DB

triadic

#42C1DB #DB42C1 #C1DB42

tetradic

#42C1DB #A842DB #DB5C42 #74DB42

square

#42C1DB #A842DB #DB5C42 #74DB42

split-complementary

#42C1DB #DB4274 #DBA842

monochromatic

#1A7689 #24A2BC #42C1DB #75D2E5 #A9E3EF

Accessibility & contrast

On white

2.12

#42C1DB on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

9.88

#42C1DB on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #42C1DB

9.88:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##42C1DB	#FFFFFF	#000000	##000000
##42C1DB	1.00	2.12	9.88	9.88
#FFFFFF	2.12	1.00	21.00	21.00
#000000	9.88	21.00	1.00	1.00
##000000	9.88	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#AEBBDC

Deuteranopia (green-blind)

#99ABDB

Tritanopia (blue-blind)

#00CBC9

Achromatopsia (no color)

#B2B2B2

Design tokens & code

CSS

--color: #42c1db;
/* rgb */ color: rgb(66, 193, 219);
/* oklch */ color: oklch(75.3% 0.114 214.2);

Tailwind

colors: {
  custom: {
    50: '#8ad4e6',
    500: '#42c1db',
    950: '#000000',
  },
}

SCSS

$custom: #42c1db;
$custom-light: #8ad4e6;
$custom-dark: #000000;

JSON

{
  "hex": "#42c1db",
  "rgb": {
    "r": 66,
    "g": 193,
    "b": 219
  },
  "hsl": {
    "h": 190.196,
    "s": 68,
    "l": 55.882
  },
  "oklch": {
    "l": 0.75259,
    "c": 0.11422,
    "h": 214.2
  },
  "luminance": 0.44413
}

Semantic roles & 50–950 ramp

primary

#42C1DB

secondary

#DCA79D

accent

#5A3DEB

background

#F9FDFE

surface

#F1FAFC

border

#CBD3D5

text

#0D1415

muted

#7E8384

Preview Lab

Preview with #42C1DB

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

Preview Lab → · Contrast checker → · Palette generator →