#42B5AF#42B5AF

#42B5AF is a light, moderate teal. Relative luminance 0.373; OKLCH L 70.7% C 0.102 H 190.2°. Best body text is #000000 at 8.46:1 contrast (WCAG AA passes).

Color values

HEX	#42B5AF
RGB	rgb(66, 181, 175)
HSL	hsl(177, 47%, 48%)
HSV	hsv(177, 64%, 71%)
CMYK	cmyk(63.5%, 0%, 3.3%, 29%)
CIE-LAB	lab(67.50, -33.25, -6.49)
CIE-LCH	lch(67.50, 33.88, 191.04°)
OKLab	oklab(70.75% -0.1007 -0.0181)
OKLCH	oklch(70.75% 0.102 190.2)
XYZ	xyz(26.5050, 37.2983, 46.3516)
Luminance	0.3730 (WCAG relative)
Temperature	cool
Family	teal

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#42B5AF #B54248

analogous

#42B575 #42B5AF #4281B5

triadic

#42B5AF #AF42B5 #B5AF42

tetradic

#42B5AF #7542B5 #B54248 #81B542

square

#42B5AF #7542B5 #B54248 #81B542

split-complementary

#42B5AF #B54281 #B57542

monochromatic

#215B58 #328884 #42B5AF #6BC9C4 #98D9D6

Accessibility & contrast

On white

2.48

#42B5AF on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

8.46

#42B5AF on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #42B5AF

8.46:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##42B5AF	#FFFFFF	#000000	##000000
##42B5AF	1.00	2.48	8.46	8.46
#FFFFFF	2.48	1.00	21.00	21.00
#000000	8.46	21.00	1.00	1.00
##000000	8.46	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#ABACAF

Deuteranopia (green-blind)

#999FB0

Tritanopia (blue-blind)

#00BAB3

Achromatopsia (no color)

#A4A4A4

Design tokens & code

CSS

--color: #42b5af;
/* rgb */ color: rgb(66, 181, 175);
/* oklch */ color: oklch(70.7% 0.102 190.2);

Tailwind

colors: {
  custom: {
    50: '#85cbc6',
    500: '#42b5af',
    950: '#000000',
  },
}

SCSS

$custom: #42b5af;
$custom-light: #85cbc6;
$custom-dark: #000000;

JSON

{
  "hex": "#42b5af",
  "rgb": {
    "r": 66,
    "g": 181,
    "b": 175
  },
  "hsl": {
    "h": 176.87,
    "s": 46.559,
    "l": 48.431
  },
  "oklch": {
    "l": 0.70749,
    "c": 0.10228,
    "h": 190.2
  },
  "luminance": 0.37301
}

Semantic roles & 50–950 ramp

primary

#42B5AF

secondary

#C58E90

accent

#5259D6

background

#F8FCFC

surface

#F0F8F8

border

#CBD1D1

text

#0C1313

muted

#7D8282

Preview Lab

Preview with #42B5AF

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

Preview Lab → · Contrast checker → · Palette generator →