#42B7CC#42B7CC

#42B7CC is a light, moderate teal. Relative luminance 0.394; OKLCH L 72.3% C 0.106 H 211.8°. Best body text is #000000 at 8.88:1 contrast (WCAG AA passes).

Color values

HEX	#42B7CC
RGB	rgb(66, 183, 204)
HSL	hsl(189, 58%, 53%)
HSV	hsv(189, 68%, 80%)
CMYK	cmyk(67.6%, 10.3%, 0%, 20%)
CIE-LAB	lab(69.03, -25.78, -20.18)
CIE-LCH	lch(69.03, 32.74, 218.05°)
OKLab	oklab(72.29% -0.0904 -0.0561)
OKLCH	oklch(72.29% 0.106 211.8)
XYZ	xyz(30.0747, 39.3815, 63.1314)
Luminance	0.3938 (WCAG relative)
Temperature	cool
Family	teal

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#42B7CC #CC5742

analogous

#42CC9C #42B7CC #4272CC

triadic

#42B7CC #CC42B7 #B7CC42

tetradic

#42B7CC #9C42CC #CC5742 #72CC42

square

#42B7CC #9C42CC #CC5742 #72CC42

split-complementary

#42B7CC #CC4272 #CC9C42

monochromatic

#1F6774 #2C92A4 #42B7CC #72C9D9 #A2DCE6

Accessibility & contrast

On white

2.37

#42B7CC on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

8.88

#42B7CC on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #42B7CC

8.88:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##42B7CC	#FFFFFF	#000000	##000000
##42B7CC	1.00	2.37	8.88	8.88
#FFFFFF	2.37	1.00	21.00	21.00
#000000	8.88	21.00	1.00	1.00
##000000	8.88	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#A6B1CD

Deuteranopia (green-blind)

#93A2CC

Tritanopia (blue-blind)

#00C0BD

Achromatopsia (no color)

#A8A8A8

Design tokens & code

CSS

--color: #42b7cc;
/* rgb */ color: rgb(66, 183, 204);
/* oklch */ color: oklch(72.3% 0.106 211.8);

Tailwind

colors: {
  custom: {
    50: '#87cddb',
    500: '#42b7cc',
    950: '#000000',
  },
}

SCSS

$custom: #42b7cc;
$custom-light: #87cddb;
$custom-dark: #000000;

JSON

{
  "hex": "#42b7cc",
  "rgb": {
    "r": 66,
    "g": 183,
    "b": 204
  },
  "hsl": {
    "h": 189.13,
    "s": 57.5,
    "l": 52.941
  },
  "oklch": {
    "l": 0.7229,
    "c": 0.1064,
    "h": 211.8
  },
  "luminance": 0.39385
}

Semantic roles & 50–950 ramp

primary

#42B7CC

secondary

#D3A097

accent

#5E47E1

background

#F9FCFD

surface

#F1F9FB

border

#CBD2D4

text

#0D1315

muted

#7E8283

Preview Lab

Preview with #42B7CC

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

Preview Lab → · Contrast checker → · Palette generator →