#42C5BF#42C5BF

#42C5BF is a light, moderate teal. Relative luminance 0.449; OKLCH L 75.2% C 0.112 H 190.6°. Best body text is #000000 at 9.97:1 contrast (WCAG AA passes).

Color values

HEX	#42C5BF
RGB	rgb(66, 197, 191)
HSL	hsl(177, 53%, 52%)
HSV	hsv(177, 66%, 77%)
CMYK	cmyk(66.5%, 0%, 3%, 22.7%)
CIE-LAB	lab(72.79, -36.30, -7.41)
CIE-LCH	lch(72.79, 37.05, 191.54°)
OKLab	oklab(75.2% -0.1101 -0.0207)
OKLCH	oklch(75.2% 0.112 190.6)
XYZ	xyz(31.6127, 44.8488, 56.2707)
Luminance	0.4485 (WCAG relative)
Temperature	cool
Family	teal

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#42C5BF #C54248

analogous

#42C57E #42C5BF #428AC5

triadic

#42C5BF #BF42C5 #C5BF42

tetradic

#42C5BF #7E42C5 #C54248 #8AC542

square

#42C5BF #7E42C5 #C54248 #8AC542

split-complementary

#42C5BF #C5428A #C57E42

monochromatic

#216C68 #2F9A96 #42C5BF #71D3CF #A0E2DF

Accessibility & contrast

On white

2.11

#42C5BF on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

9.97

#42C5BF on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #42C5BF

9.97:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##42C5BF	#FFFFFF	#000000	##000000
##42C5BF	1.00	2.11	9.97	9.97
#FFFFFF	2.11	1.00	21.00	21.00
#000000	9.97	21.00	1.00	1.00
##000000	9.97	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#BABBBF

Deuteranopia (green-blind)

#A6ADC0

Tritanopia (blue-blind)

#00CAC3

Achromatopsia (no color)

#B3B3B3

Design tokens & code

CSS

--color: #42c5bf;
/* rgb */ color: rgb(66, 197, 191);
/* oklch */ color: oklch(75.2% 0.112 190.6);

Tailwind

colors: {
  custom: {
    50: '#88d7d2',
    500: '#42c5bf',
    950: '#000000',
  },
}

SCSS

$custom: #42c5bf;
$custom-light: #88d7d2;
$custom-dark: #000000;

JSON

{
  "hex": "#42c5bf",
  "rgb": {
    "r": 66,
    "g": 197,
    "b": 191
  },
  "hsl": {
    "h": 177.252,
    "s": 53.036,
    "l": 51.569
  },
  "oklch": {
    "l": 0.75198,
    "c": 0.11205,
    "h": 190.6
  },
  "luminance": 0.44852
}

Semantic roles & 50–950 ramp

primary

#42C5BF

secondary

#CE9597

accent

#4B52DC

background

#F9FDFC

surface

#F1FAF9

border

#CBD3D2

text

#0D1414

muted

#7E8382

Preview Lab

Preview with #42C5BF

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

Preview Lab → · Contrast checker → · Palette generator →