#42ACB5#42ACB5

#42ACB5 is a light, moderate teal. Relative luminance 0.340; OKLCH L 68.8% C 0.096 H 203.1°. Best body text is #000000 at 7.80:1 contrast (WCAG AA passes).

Color values

HEX	#42ACB5
RGB	rgb(66, 172, 181)
HSL	hsl(185, 47%, 48%)
HSV	hsv(185, 64%, 71%)
CMYK	cmyk(63.5%, 5%, 0%, 29%)
CIE-LAB	lab(64.96, -27.18, -13.61)
CIE-LCH	lch(64.96, 30.39, 206.60°)
OKLab	oklab(68.76% -0.0885 -0.0377)
OKLCH	oklch(68.76% 0.096 203.1)
XYZ	xyz(25.3362, 33.9968, 48.9339)
Luminance	0.3400 (WCAG relative)
Temperature	cool
Family	teal

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#42ACB5 #B54B42

analogous

#42B584 #42ACB5 #4272B5

triadic

#42ACB5 #B542AC #ACB542

tetradic

#42ACB5 #8442B5 #B54B42 #72B542

square

#42ACB5 #8442B5 #B54B42 #72B542

split-complementary

#42ACB5 #B54272 #B58442

monochromatic

#21575B #328188 #42ACB5 #6BC2C9 #98D4D9

Accessibility & contrast

On white

2.69

#42ACB5 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

7.80

#42ACB5 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #42ACB5

7.80:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##42ACB5	#FFFFFF	#000000	##000000
##42ACB5	1.00	2.69	7.80	7.80
#FFFFFF	2.69	1.00	21.00	21.00
#000000	7.80	21.00	1.00	1.00
##000000	7.80	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#9FA5B6

Deuteranopia (green-blind)

#8E98B5

Tritanopia (blue-blind)

#00B2AE

Achromatopsia (no color)

#9E9E9E

Design tokens & code

CSS

--color: #42acb5;
/* rgb */ color: rgb(66, 172, 181);
/* oklch */ color: oklch(68.8% 0.096 203.1);

Tailwind

colors: {
  custom: {
    50: '#84c5cb',
    500: '#42acb5',
    950: '#000000',
  },
}

SCSS

$custom: #42acb5;
$custom-light: #84c5cb;
$custom-dark: #000000;

JSON

{
  "hex": "#42acb5",
  "rgb": {
    "r": 66,
    "g": 172,
    "b": 181
  },
  "hsl": {
    "h": 184.696,
    "s": 46.559,
    "l": 48.431
  },
  "oklch": {
    "l": 0.68756,
    "c": 0.09625,
    "h": 203.1
  },
  "luminance": 0.33999
}

Semantic roles & 50–950 ramp

primary

#42ACB5

secondary

#C5928E

accent

#5C52D6

background

#F8FCFC

surface

#F0F8F8

border

#CBD1D1

text

#0C1313

muted

#7D8282

Preview Lab

Preview with #42ACB5

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

Preview Lab → · Contrast checker → · Palette generator →