#42C5CC#42C5CC

#42C5CC is a light, moderate teal. Relative luminance 0.455; OKLCH L 75.6% C 0.111 H 200.2°. Best body text is #000000 at 10.09:1 contrast (WCAG AA passes).

Color values

HEX	#42C5CC
RGB	rgb(66, 197, 204)
HSL	hsl(183, 58%, 53%)
HSV	hsv(183, 68%, 80%)
CMYK	cmyk(67.6%, 3.4%, 0%, 20%)
CIE-LAB	lab(73.19, -32.62, -13.89)
CIE-LCH	lch(73.19, 35.45, 203.07°)
OKLab	oklab(75.65% -0.1045 -0.0385)
OKLCH	oklch(75.65% 0.111 200.2)
XYZ	xyz(33.1073, 45.4466, 64.1423)
Luminance	0.4545 (WCAG relative)
Temperature	cool
Family	teal

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#42C5CC #CC4942

analogous

#42CC8E #42C5CC #4280CC

triadic

#42C5CC #CC42C5 #C5CC42

tetradic

#42C5CC #8E42CC #CC4942 #80CC42

square

#42C5CC #8E42CC #CC4942 #80CC42

split-complementary

#42C5CC #CC4280 #CC8E42

monochromatic

#1F7074 #2C9EA4 #42C5CC #72D4D9 #A2E3E6

Accessibility & contrast

On white

2.08

#42C5CC on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

10.09

#42C5CC on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #42C5CC

10.09:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##42C5CC	#FFFFFF	#000000	##000000
##42C5CC	1.00	2.08	10.09	10.09
#FFFFFF	2.08	1.00	21.00	21.00
#000000	10.09	21.00	1.00	1.00
##000000	10.09	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#B7BCCD

Deuteranopia (green-blind)

#A2ADCD

Tritanopia (blue-blind)

#00CCC7

Achromatopsia (no color)

#B4B4B4

Design tokens & code

CSS

--color: #42c5cc;
/* rgb */ color: rgb(66, 197, 204);
/* oklch */ color: oklch(75.6% 0.111 200.2);

Tailwind

colors: {
  custom: {
    50: '#89d7db',
    500: '#42c5cc',
    950: '#000000',
  },
}

SCSS

$custom: #42c5cc;
$custom-light: #89d7db;
$custom-dark: #000000;

JSON

{
  "hex": "#42c5cc",
  "rgb": {
    "r": 66,
    "g": 197,
    "b": 204
  },
  "hsl": {
    "h": 183.043,
    "s": 57.5,
    "l": 52.941
  },
  "oklch": {
    "l": 0.75646,
    "c": 0.1114,
    "h": 200.2
  },
  "luminance": 0.4545
}

Semantic roles & 50–950 ramp

primary

#42C5CC

secondary

#D39A97

accent

#4F47E1

background

#F9FDFD

surface

#F1FAFB

border

#CBD3D4

text

#0D1415

muted

#7E8383

Preview Lab

Preview with #42C5CC

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

Preview Lab → · Contrast checker → · Palette generator →