#42BACC#42BACC

#42BACC is a light, moderate teal. Relative luminance 0.406; OKLCH L 73.0% C 0.107 H 209.2°. Best body text is #000000 at 9.13:1 contrast (WCAG AA passes).

Color values

HEX	#42BACC
RGB	rgb(66, 186, 204)
HSL	hsl(188, 58%, 53%)
HSV	hsv(188, 68%, 80%)
CMYK	cmyk(67.6%, 8.8%, 0%, 20%)
CIE-LAB	lab(69.92, -27.27, -18.82)
CIE-LCH	lch(69.92, 33.14, 214.61°)
OKLab	oklab(73.01% -0.0934 -0.0523)
OKLCH	oklch(73.01% 0.107 209.2)
XYZ	xyz(30.7001, 40.6322, 63.3399)
Luminance	0.4064 (WCAG relative)
Temperature	cool
Family	teal

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#42BACC #CC5442

analogous

#42CC99 #42BACC #4275CC

triadic

#42BACC #CC42BA #BACC42

tetradic

#42BACC #9942CC #CC5442 #75CC42

square

#42BACC #9942CC #CC5442 #75CC42

split-complementary

#42BACC #CC4275 #CC9942

monochromatic

#1F6974 #2C95A4 #42BACC #72CCD9 #A2DDE6

Accessibility & contrast

On white

2.30

#42BACC on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

9.13

#42BACC on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #42BACC

9.13:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##42BACC	#FFFFFF	#000000	##000000
##42BACC	1.00	2.30	9.13	9.13
#FFFFFF	2.30	1.00	21.00	21.00
#000000	9.13	21.00	1.00	1.00
##000000	9.13	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#AAB3CD

Deuteranopia (green-blind)

#96A5CC

Tritanopia (blue-blind)

#00C2BF

Achromatopsia (no color)

#ABABAB

Design tokens & code

CSS

--color: #42bacc;
/* rgb */ color: rgb(66, 186, 204);
/* oklch */ color: oklch(73.0% 0.107 209.2);

Tailwind

colors: {
  custom: {
    50: '#88cfdb',
    500: '#42bacc',
    950: '#000000',
  },
}

SCSS

$custom: #42bacc;
$custom-light: #88cfdb;
$custom-dark: #000000;

JSON

{
  "hex": "#42bacc",
  "rgb": {
    "r": 66,
    "g": 186,
    "b": 204
  },
  "hsl": {
    "h": 187.826,
    "s": 57.5,
    "l": 52.941
  },
  "oklch": {
    "l": 0.73007,
    "c": 0.10708,
    "h": 209.2
  },
  "luminance": 0.40636
}

Semantic roles & 50–950 ramp

primary

#42BACC

secondary

#D39F97

accent

#5B47E1

background

#F9FCFD

surface

#F1F9FB

border

#CBD2D4

text

#0D1415

muted

#7E8283

Preview Lab

Preview with #42BACC

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

Preview Lab → · Contrast checker → · Palette generator →