#42C5BC#42C5BC

#42C5BC is a light, moderate teal. Relative luminance 0.447; OKLCH L 75.1% C 0.113 H 188.5°. Best body text is #000000 at 9.94:1 contrast (WCAG AA passes).

Color values

HEX	#42C5BC
RGB	rgb(66, 197, 188)
HSL	hsl(176, 53%, 52%)
HSV	hsv(176, 66%, 77%)
CMYK	cmyk(66.5%, 0%, 4.6%, 22.7%)
CIE-LAB	lab(72.71, -37.12, -5.90)
CIE-LCH	lch(72.71, 37.59, 189.04°)
OKLab	oklab(75.1% -0.1114 -0.0166)
OKLCH	oklch(75.1% 0.113 188.5)
XYZ	xyz(31.2859, 44.7181, 54.5498)
Luminance	0.4472 (WCAG relative)
Temperature	cool
Family	teal

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#42C5BC #C5424B

analogous

#42C57B #42C5BC #428DC5

triadic

#42C5BC #BC42C5 #C5BC42

tetradic

#42C5BC #7B42C5 #C5424B #8DC542

square

#42C5BC #7B42C5 #C5424B #8DC542

split-complementary

#42C5BC #C5428D #C57B42

monochromatic

#216C66 #2F9A93 #42C5BC #71D3CD #A0E2DD

Accessibility & contrast

On white

2.11

#42C5BC on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

9.94

#42C5BC on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #42C5BC

9.94:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##42C5BC	#FFFFFF	#000000	##000000
##42C5BC	1.00	2.11	9.94	9.94
#FFFFFF	2.11	1.00	21.00	21.00
#000000	9.94	21.00	1.00	1.00
##000000	9.94	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#BABBBC

Deuteranopia (green-blind)

#A7ACBD

Tritanopia (blue-blind)

#00CAC2

Achromatopsia (no color)

#B2B2B2

Design tokens & code

CSS

--color: #42c5bc;
/* rgb */ color: rgb(66, 197, 188);
/* oklch */ color: oklch(75.1% 0.113 188.5);

Tailwind

colors: {
  custom: {
    50: '#87d7d0',
    500: '#42c5bc',
    950: '#000000',
  },
}

SCSS

$custom: #42c5bc;
$custom-light: #87d7d0;
$custom-dark: #000000;

JSON

{
  "hex": "#42c5bc",
  "rgb": {
    "r": 66,
    "g": 197,
    "b": 188
  },
  "hsl": {
    "h": 175.878,
    "s": 53.036,
    "l": 51.569
  },
  "oklch": {
    "l": 0.75099,
    "c": 0.11267,
    "h": 188.5
  },
  "luminance": 0.44722
}

Semantic roles & 50–950 ramp

primary

#42C5BC

secondary

#CE9599

accent

#4B55DC

background

#F9FDFC

surface

#F1FAF9

border

#CBD3D2

text

#0D1413

muted

#7E8382

Preview Lab

Preview with #42C5BC

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

Preview Lab → · Contrast checker → · Palette generator →