#42AFDB#42AFDB

#42AFDB is a light, moderate cyan. Relative luminance 0.369; OKLCH L 71.0% C 0.116 H 228.7°. Best body text is #000000 at 8.39:1 contrast (WCAG AA passes).

Color values

HEX	#42AFDB
RGB	rgb(66, 175, 219)
HSL	hsl(197, 68%, 56%)
HSV	hsv(197, 70%, 86%)
CMYK	cmyk(69.9%, 20.1%, 0%, 14.1%)
CIE-LAB	lab(67.22, -16.94, -31.18)
CIE-LCH	lch(67.22, 35.49, 241.48°)
OKLab	oklab(71.03% -0.0767 -0.0874)
OKLCH	oklch(71.03% 0.116 228.7)
XYZ	xyz(30.3578, 36.9292, 72.5322)
Luminance	0.3693 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#42AFDB #DB6E42

analogous

#42DBBA #42AFDB #4262DB

triadic

#42AFDB #DB42AF #AFDB42

tetradic

#42AFDB #BA42DB #DB6E42 #62DB42

square

#42AFDB #BA42DB #DB6E42 #62DB42

split-complementary

#42AFDB #DB4262 #DBBA42

monochromatic

#1A6989 #2490BC #42AFDB #75C5E5 #A9DBEF

Accessibility & contrast

On white

2.50

#42AFDB on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

8.39

#42AFDB on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #42AFDB

8.39:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##42AFDB	#FFFFFF	#000000	##000000
##42AFDB	1.00	2.50	8.39	8.39
#FFFFFF	2.50	1.00	21.00	21.00
#000000	8.39	21.00	1.00	1.00
##000000	8.39	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#98ACDD

Deuteranopia (green-blind)

#839DDA

Tritanopia (blue-blind)

#00BBBE

Achromatopsia (no color)

#A4A4A4

Design tokens & code

CSS

--color: #42afdb;
/* rgb */ color: rgb(66, 175, 219);
/* oklch */ color: oklch(71.0% 0.116 228.7);

Tailwind

colors: {
  custom: {
    50: '#89c7e6',
    500: '#42afdb',
    950: '#000000',
  },
}

SCSS

$custom: #42afdb;
$custom-light: #89c7e6;
$custom-dark: #000000;

JSON

{
  "hex": "#42afdb",
  "rgb": {
    "r": 66,
    "g": 175,
    "b": 219
  },
  "hsl": {
    "h": 197.255,
    "s": 68,
    "l": 55.882
  },
  "oklch": {
    "l": 0.71028,
    "c": 0.11629,
    "h": 228.7
  },
  "luminance": 0.36933
}

Semantic roles & 50–950 ramp

primary

#42AFDB

secondary

#DCAF9D

accent

#6F3DEB

background

#F9FCFE

surface

#F1F8FC

border

#CBD1D5

text

#0D1316

muted

#7E8284

Preview Lab

Preview with #42AFDB

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

Preview Lab → · Contrast checker → · Palette generator →