#42C5D1#42C5D1

#42C5D1 is a light, moderate teal. Relative luminance 0.457; OKLCH L 75.8% C 0.112 H 203.9°. Best body text is #000000 at 10.14:1 contrast (WCAG AA passes).

Color values

HEX	#42C5D1
RGB	rgb(66, 197, 209)
HSL	hsl(185, 61%, 54%)
HSV	hsv(185, 68%, 82%)
CMYK	cmyk(68.4%, 5.7%, 0%, 18%)
CIE-LAB	lab(73.34, -31.16, -16.37)
CIE-LCH	lch(73.34, 35.19, 207.71°)
OKLab	oklab(75.83% -0.1024 -0.0454)
OKLCH	oklch(75.83% 0.112 203.9)
XYZ	xyz(33.7166, 45.6903, 67.3514)
Luminance	0.4569 (WCAG relative)
Temperature	cool
Family	teal

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#42C5D1 #D14E42

analogous

#42D196 #42C5D1 #427ED1

triadic

#42C5D1 #D142C5 #C5D142

tetradic

#42C5D1 #9642D1 #D14E42 #7ED142

square

#42C5D1 #9642D1 #D14E42 #7ED142

split-complementary

#42C5D1 #D1427E #D19642

monochromatic

#1E737B #2AA1AC #42C5D1 #73D4DD #A4E3E9

Accessibility & contrast

On white

2.07

#42C5D1 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

10.14

#42C5D1 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #42C5D1

10.14:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##42C5D1	#FFFFFF	#000000	##000000
##42C5D1	1.00	2.07	10.14	10.14
#FFFFFF	2.07	1.00	21.00	21.00
#000000	10.14	21.00	1.00	1.00
##000000	10.14	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#B6BDD2

Deuteranopia (green-blind)

#A1AED2

Tritanopia (blue-blind)

#00CDC8

Achromatopsia (no color)

#B4B4B4

Design tokens & code

CSS

--color: #42c5d1;
/* rgb */ color: rgb(66, 197, 209);
/* oklch */ color: oklch(75.8% 0.112 203.9);

Tailwind

colors: {
  custom: {
    50: '#89d7df',
    500: '#42c5d1',
    950: '#000000',
  },
}

SCSS

$custom: #42c5d1;
$custom-light: #89d7df;
$custom-dark: #000000;

JSON

{
  "hex": "#42c5d1",
  "rgb": {
    "r": 66,
    "g": 197,
    "b": 209
  },
  "hsl": {
    "h": 185.035,
    "s": 60.851,
    "l": 53.922
  },
  "oklch": {
    "l": 0.75828,
    "c": 0.11204,
    "h": 203.9
  },
  "luminance": 0.45694
}

Semantic roles & 50–950 ramp

primary

#42C5D1

secondary

#D69E99

accent

#5144E4

background

#F9FDFD

surface

#F1FAFB

border

#CBD3D4

text

#0D1415

muted

#7E8383

Preview Lab

Preview with #42C5D1

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

Preview Lab → · Contrast checker → · Palette generator →