#42B8CA#42B8CA

#42B8CA is a light, moderate teal. Relative luminance 0.397; OKLCH L 72.5% C 0.106 H 209.4°. Best body text is #000000 at 8.94:1 contrast (WCAG AA passes).

Color values

HEX	#42B8CA
RGB	rgb(66, 184, 202)
HSL	hsl(188, 56%, 53%)
HSV	hsv(188, 67%, 79%)
CMYK	cmyk(67.3%, 8.9%, 0%, 20.8%)
CIE-LAB	lab(69.26, -26.88, -18.73)
CIE-LCH	lch(69.26, 32.76, 214.86°)
OKLab	oklab(72.45% -0.0922 -0.052)
OKLCH	oklch(72.45% 0.106 209.4)
XYZ	xyz(30.0434, 39.7001, 61.9452)
Luminance	0.3970 (WCAG relative)
Temperature	cool
Family	teal

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#42B8CA #CA5442

analogous

#42CA98 #42B8CA #4274CA

triadic

#42B8CA #CA42B8 #B8CA42

tetradic

#42B8CA #9842CA #CA5442 #74CA42

square

#42B8CA #9842CA #CA5442 #74CA42

split-complementary

#42B8CA #CA4274 #CA9842

monochromatic

#206772 #2D92A2 #42B8CA #72CAD7 #A2DCE5

Accessibility & contrast

On white

2.35

#42B8CA on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

8.94

#42B8CA on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #42B8CA

8.94:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##42B8CA	#FFFFFF	#000000	##000000
##42B8CA	1.00	2.35	8.94	8.94
#FFFFFF	2.35	1.00	21.00	21.00
#000000	8.94	21.00	1.00	1.00
##000000	8.94	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#A8B1CB

Deuteranopia (green-blind)

#94A3CA

Tritanopia (blue-blind)

#00C0BD

Achromatopsia (no color)

#A9A9A9

Design tokens & code

CSS

--color: #42b8ca;
/* rgb */ color: rgb(66, 184, 202);
/* oklch */ color: oklch(72.5% 0.106 209.4);

Tailwind

colors: {
  custom: {
    50: '#87cdda',
    500: '#42b8ca',
    950: '#000000',
  },
}

SCSS

$custom: #42b8ca;
$custom-light: #87cdda;
$custom-dark: #000000;

JSON

{
  "hex": "#42b8ca",
  "rgb": {
    "r": 66,
    "g": 184,
    "b": 202
  },
  "hsl": {
    "h": 187.941,
    "s": 56.198,
    "l": 52.549
  },
  "oklch": {
    "l": 0.72451,
    "c": 0.10589,
    "h": 209.4
  },
  "luminance": 0.39703
}

Semantic roles & 50–950 ramp

primary

#42B8CA

secondary

#D19E96

accent

#5C48DF

background

#F9FCFD

surface

#F1F9FA

border

#CBD2D3

text

#0D1314

muted

#7E8283

Preview Lab

Preview with #42B8CA

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

Preview Lab → · Contrast checker → · Palette generator →