#42B9CA#42B9CA

#42B9CA is a light, moderate teal. Relative luminance 0.401; OKLCH L 72.7% C 0.106 H 208.6°. Best body text is #000000 at 9.02:1 contrast (WCAG AA passes).

Color values

HEX	#42B9CA
RGB	rgb(66, 185, 202)
HSL	hsl(188, 56%, 53%)
HSV	hsv(188, 67%, 79%)
CMYK	cmyk(67.3%, 8.4%, 0%, 20.8%)
CIE-LAB	lab(69.55, -27.38, -18.28)
CIE-LCH	lch(69.55, 32.92, 213.73°)
OKLab	oklab(72.69% -0.0932 -0.0508)
OKLCH	oklch(72.69% 0.106 208.6)
XYZ	xyz(30.2519, 40.1170, 62.0147)
Luminance	0.4012 (WCAG relative)
Temperature	cool
Family	teal

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#42B9CA #CA5342

analogous

#42CA97 #42B9CA #4275CA

triadic

#42B9CA #CA42B9 #B9CA42

tetradic

#42B9CA #9742CA #CA5342 #75CA42

square

#42B9CA #9742CA #CA5342 #75CA42

split-complementary

#42B9CA #CA4275 #CA9742

monochromatic

#206772 #2D93A2 #42B9CA #72CBD7 #A2DCE5

Accessibility & contrast

On white

2.33

#42B9CA on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

9.02

#42B9CA on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #42B9CA

9.02:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##42B9CA	#FFFFFF	#000000	##000000
##42B9CA	1.00	2.33	9.02	9.02
#FFFFFF	2.33	1.00	21.00	21.00
#000000	9.02	21.00	1.00	1.00
##000000	9.02	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#A9B2CB

Deuteranopia (green-blind)

#96A4CA

Tritanopia (blue-blind)

#00C1BE

Achromatopsia (no color)

#AAAAAA

Design tokens & code

CSS

--color: #42b9ca;
/* rgb */ color: rgb(66, 185, 202);
/* oklch */ color: oklch(72.7% 0.106 208.6);

Tailwind

colors: {
  custom: {
    50: '#87ceda',
    500: '#42b9ca',
    950: '#000000',
  },
}

SCSS

$custom: #42b9ca;
$custom-light: #87ceda;
$custom-dark: #000000;

JSON

{
  "hex": "#42b9ca",
  "rgb": {
    "r": 66,
    "g": 185,
    "b": 202
  },
  "hsl": {
    "h": 187.5,
    "s": 56.198,
    "l": 52.549
  },
  "oklch": {
    "l": 0.72691,
    "c": 0.10617,
    "h": 208.6
  },
  "luminance": 0.4012
}

Semantic roles & 50–950 ramp

primary

#42B9CA

secondary

#D19E96

accent

#5B48DF

background

#F9FCFD

surface

#F1F9FA

border

#CBD2D3

text

#0D1314

muted

#7E8283

Preview Lab

Preview with #42B9CA

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

Preview Lab → · Contrast checker → · Palette generator →