#42B5CA#42B5CA

#42B5CA is a light, moderate teal. Relative luminance 0.385; OKLCH L 71.7% C 0.105 H 212.0°. Best body text is #000000 at 8.69:1 contrast (WCAG AA passes).

Color values

HEX	#42B5CA
RGB	rgb(66, 181, 202)
HSL	hsl(189, 56%, 53%)
HSV	hsv(189, 67%, 79%)
CMYK	cmyk(67.3%, 10.4%, 0%, 20.8%)
CIE-LAB	lab(68.36, -25.39, -20.08)
CIE-LCH	lch(68.36, 32.37, 218.35°)
OKLab	oklab(71.73% -0.0892 -0.0558)
OKLCH	oklch(71.73% 0.105 212)
XYZ	xyz(29.4268, 38.4670, 61.7397)
Luminance	0.3847 (WCAG relative)
Temperature	cool
Family	teal

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#42B5CA #CA5742

analogous

#42CA9B #42B5CA #4271CA

triadic

#42B5CA #CA42B5 #B5CA42

tetradic

#42B5CA #9B42CA #CA5742 #71CA42

square

#42B5CA #9B42CA #CA5742 #71CA42

split-complementary

#42B5CA #CA4271 #CA9B42

monochromatic

#206572 #2D90A2 #42B5CA #72C8D7 #A2DAE5

Accessibility & contrast

On white

2.42

#42B5CA on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

8.69

#42B5CA on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #42B5CA

8.69:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##42B5CA	#FFFFFF	#000000	##000000
##42B5CA	1.00	2.42	8.69	8.69
#FFFFFF	2.42	1.00	21.00	21.00
#000000	8.69	21.00	1.00	1.00
##000000	8.69	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#A4AFCB

Deuteranopia (green-blind)

#91A1CA

Tritanopia (blue-blind)

#00BEBB

Achromatopsia (no color)

#A7A7A7

Design tokens & code

CSS

--color: #42b5ca;
/* rgb */ color: rgb(66, 181, 202);
/* oklch */ color: oklch(71.7% 0.105 212.0);

Tailwind

colors: {
  custom: {
    50: '#87cbda',
    500: '#42b5ca',
    950: '#000000',
  },
}

SCSS

$custom: #42b5ca;
$custom-light: #87cbda;
$custom-dark: #000000;

JSON

{
  "hex": "#42b5ca",
  "rgb": {
    "r": 66,
    "g": 181,
    "b": 202
  },
  "hsl": {
    "h": 189.265,
    "s": 56.198,
    "l": 52.549
  },
  "oklch": {
    "l": 0.71733,
    "c": 0.10523,
    "h": 212
  },
  "luminance": 0.3847
}

Semantic roles & 50–950 ramp

primary

#42B5CA

secondary

#D19F96

accent

#6048DF

background

#F8FCFD

surface

#F0F8FA

border

#CBD1D3

text

#0D1314

muted

#7D8283

Preview Lab

Preview with #42B5CA

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

Preview Lab → · Contrast checker → · Palette generator →