#42B4C8#42B4C8

#42B4C8 is a light, moderate teal. Relative luminance 0.380; OKLCH L 71.4% C 0.104 H 211.4°. Best body text is #000000 at 8.59:1 contrast (WCAG AA passes).

Color values

HEX	#42B4C8
RGB	rgb(66, 180, 200)
HSL	hsl(189, 55%, 52%)
HSV	hsv(189, 67%, 78%)
CMYK	cmyk(67%, 10%, 0%, 21.6%)
CIE-LAB	lab(68.00, -25.49, -19.54)
CIE-LCH	lch(68.00, 32.12, 217.47°)
OKLab	oklab(71.41% -0.089 -0.0543)
OKLCH	oklch(71.41% 0.104 211.4)
XYZ	xyz(28.9890, 37.9677, 60.4331)
Luminance	0.3797 (WCAG relative)
Temperature	cool
Family	teal

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#42B4C8 #C85642

analogous

#42C899 #42B4C8 #4271C8

triadic

#42B4C8 #C842B4 #B4C842

tetradic

#42B4C8 #9942C8 #C85642 #71C842

square

#42B4C8 #9942C8 #C85642 #71C842

split-complementary

#42B4C8 #C84271 #C89942

monochromatic

#20636F #2E8E9F #42B4C8 #71C7D6 #A1DAE4

Accessibility & contrast

On white

2.44

#42B4C8 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

8.59

#42B4C8 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #42B4C8

8.59:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##42B4C8	#FFFFFF	#000000	##000000
##42B4C8	1.00	2.44	8.59	8.59
#FFFFFF	2.44	1.00	21.00	21.00
#000000	8.59	21.00	1.00	1.00
##000000	8.59	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#A4AEC9

Deuteranopia (green-blind)

#91A0C8

Tritanopia (blue-blind)

#00BCBA

Achromatopsia (no color)

#A6A6A6

Design tokens & code

CSS

--color: #42b4c8;
/* rgb */ color: rgb(66, 180, 200);
/* oklch */ color: oklch(71.4% 0.104 211.4);

Tailwind

colors: {
  custom: {
    50: '#87cad8',
    500: '#42b4c8',
    950: '#000000',
  },
}

SCSS

$custom: #42b4c8;
$custom-light: #87cad8;
$custom-dark: #000000;

JSON

{
  "hex": "#42b4c8",
  "rgb": {
    "r": 66,
    "g": 180,
    "b": 200
  },
  "hsl": {
    "h": 188.955,
    "s": 54.918,
    "l": 52.157
  },
  "oklch": {
    "l": 0.71415,
    "c": 0.10424,
    "h": 211.4
  },
  "luminance": 0.37971
}

Semantic roles & 50–950 ramp

primary

#42B4C8

secondary

#D09E96

accent

#604ADE

background

#F8FCFD

surface

#F0F8FA

border

#CBD1D3

text

#0D1314

muted

#7D8283

Preview Lab

Preview with #42B4C8

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

Preview Lab → · Contrast checker → · Palette generator →