#42BAC5#42BAC5

#42BAC5 is a light, moderate teal. Relative luminance 0.403; OKLCH L 72.7% C 0.105 H 203.8°. Best body text is #000000 at 9.06:1 contrast (WCAG AA passes).

Color values

HEX	#42BAC5
RGB	rgb(66, 186, 197)
HSL	hsl(185, 53%, 52%)
HSV	hsv(185, 66%, 77%)
CMYK	cmyk(66.5%, 5.6%, 0%, 22.7%)
CIE-LAB	lab(69.69, -29.36, -15.33)
CIE-LCH	lch(69.69, 33.12, 207.58°)
OKLab	oklab(72.74% -0.0963 -0.0425)
OKLCH	oklch(72.74% 0.105 203.8)
XYZ	xyz(29.8794, 40.3039, 59.0172)
Luminance	0.4031 (WCAG relative)
Temperature	cool
Family	teal

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#42BAC5 #C54D42

analogous

#42C58F #42BAC5 #4279C5

triadic

#42BAC5 #C542BA #BAC542

tetradic

#42BAC5 #8F42C5 #C54D42 #79C542

square

#42BAC5 #8F42C5 #C54D42 #79C542

split-complementary

#42BAC5 #C54279 #C58F42

monochromatic

#21656C #2F919A #42BAC5 #71CBD3 #A0DCE2

Accessibility & contrast

On white

2.32

#42BAC5 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

9.06

#42BAC5 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #42BAC5

9.06:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##42BAC5	#FFFFFF	#000000	##000000
##42BAC5	1.00	2.32	9.06	9.06
#FFFFFF	2.32	1.00	21.00	21.00
#000000	9.06	21.00	1.00	1.00
##000000	9.06	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#ACB2C6

Deuteranopia (green-blind)

#98A4C5

Tritanopia (blue-blind)

#00C1BD

Achromatopsia (no color)

#AAAAAA

Design tokens & code

CSS

--color: #42bac5;
/* rgb */ color: rgb(66, 186, 197);
/* oklch */ color: oklch(72.7% 0.105 203.8);

Tailwind

colors: {
  custom: {
    50: '#87cfd6',
    500: '#42bac5',
    950: '#000000',
  },
}

SCSS

$custom: #42bac5;
$custom-light: #87cfd6;
$custom-dark: #000000;

JSON

{
  "hex": "#42bac5",
  "rgb": {
    "r": 66,
    "g": 186,
    "b": 197
  },
  "hsl": {
    "h": 185.038,
    "s": 53.036,
    "l": 51.569
  },
  "oklch": {
    "l": 0.72743,
    "c": 0.10531,
    "h": 203.8
  },
  "luminance": 0.40307
}

Semantic roles & 50–950 ramp

primary

#42BAC5

secondary

#CE9995

accent

#584BDC

background

#F8FCFD

surface

#F0F9FA

border

#CBD2D3

text

#0D1414

muted

#7D8283

Preview Lab

Preview with #42BAC5

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

Preview Lab → · Contrast checker → · Palette generator →