#42CBB5#42CBB5

#42CBB5 is a light, vivid teal. Relative luminance 0.472; OKLCH L 76.3% C 0.121 H 180.0°. Best body text is #000000 at 10.44:1 contrast (WCAG AA passes).

Color values

HEX	#42CBB5
RGB	rgb(66, 203, 181)
HSL	hsl(170, 57%, 53%)
HSV	hsv(170, 67%, 80%)
CMYK	cmyk(67.5%, 0%, 10.8%, 20.4%)
CIE-LAB	lab(74.32, -41.69, 0.26)
CIE-LCH	lch(74.32, 41.69, 179.64°)
OKLab	oklab(76.35% -0.1207 0)
OKLCH	oklch(76.35% 0.121 180)
XYZ	xyz(31.9392, 47.2027, 51.1349)
Luminance	0.4721 (WCAG relative)
Temperature	cool
Family	teal

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#42CBB5 #CB4258

analogous

#42CB70 #42CBB5 #429CCB

triadic

#42CBB5 #B542CB #CBB542

tetradic

#42CBB5 #7042CB #CB4258 #9CCB42

square

#42CBB5 #7042CB #CB4258 #9CCB42

split-complementary

#42CBB5 #CB429C #CB7042

monochromatic

#207366 #2DA390 #42CBB5 #72D8C8 #A2E5DB

Accessibility & contrast

On white

2.01

#42CBB5 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

10.44

#42CBB5 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #42CBB5

10.44:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##42CBB5	#FFFFFF	#000000	##000000
##42CBB5	1.00	2.01	10.44	10.44
#FFFFFF	2.01	1.00	21.00	21.00
#000000	10.44	21.00	1.00	1.00
##000000	10.44	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#C2BFB4

Deuteranopia (green-blind)

#AFB1B7

Tritanopia (blue-blind)

#00CEC4

Achromatopsia (no color)

#B7B7B7

Design tokens & code

CSS

--color: #42cbb5;
/* rgb */ color: rgb(66, 203, 181);
/* oklch */ color: oklch(76.3% 0.121 180.0);

Tailwind

colors: {
  custom: {
    50: '#88dbcb',
    500: '#42cbb5',
    950: '#000000',
  },
}

SCSS

$custom: #42cbb5;
$custom-light: #88dbcb;
$custom-dark: #000000;

JSON

{
  "hex": "#42cbb5",
  "rgb": {
    "r": 66,
    "g": 203,
    "b": 181
  },
  "hsl": {
    "h": 170.365,
    "s": 56.846,
    "l": 52.745
  },
  "oklch": {
    "l": 0.76348,
    "c": 0.12068,
    "h": 180
  },
  "luminance": 0.47206
}

Semantic roles & 50–950 ramp

primary

#42CBB5

secondary

#D297A0

accent

#4860E0

background

#F9FDFC

surface

#F1FBF8

border

#CBD4D1

text

#0D1513

muted

#7E8382

Preview Lab

Preview with #42CBB5

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

Preview Lab → · Contrast checker → · Palette generator →