#42B7DB#42B7DB

#42B7DB is a light, moderate cyan. Relative luminance 0.401; OKLCH L 72.9% C 0.114 H 222.3°. Best body text is #000000 at 9.03:1 contrast (WCAG AA passes).

Color values

HEX	#42B7DB
RGB	rgb(66, 183, 219)
HSL	hsl(194, 68%, 56%)
HSV	hsv(194, 70%, 86%)
CMYK	cmyk(69.9%, 16.4%, 0%, 14.1%)
CIE-LAB	lab(69.57, -21.13, -27.57)
CIE-LCH	lch(69.57, 34.73, 232.54°)
OKLab	oklab(72.9% -0.0846 -0.077)
OKLCH	oklch(72.9% 0.114 222.3)
XYZ	xyz(31.9612, 40.1361, 73.0667)
Luminance	0.4014 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#42B7DB #DB6642

analogous

#42DBB3 #42B7DB #426ADB

triadic

#42B7DB #DB42B7 #B7DB42

tetradic

#42B7DB #B342DB #DB6642 #6ADB42

square

#42B7DB #B342DB #DB6642 #6ADB42

split-complementary

#42B7DB #DB426A #DBB342

monochromatic

#1A6F89 #2498BC #42B7DB #75CBE5 #A9DEEF

Accessibility & contrast

On white

2.33

#42B7DB on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

9.03

#42B7DB on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #42B7DB

9.03:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##42B7DB	#FFFFFF	#000000	##000000
##42B7DB	1.00	2.33	9.03	9.03
#FFFFFF	2.33	1.00	21.00	21.00
#000000	9.03	21.00	1.00	1.00
##000000	9.03	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#A2B3DD

Deuteranopia (green-blind)

#8DA3DB

Tritanopia (blue-blind)

#00C2C3

Achromatopsia (no color)

#AAAAAA

Design tokens & code

CSS

--color: #42b7db;
/* rgb */ color: rgb(66, 183, 219);
/* oklch */ color: oklch(72.9% 0.114 222.3);

Tailwind

colors: {
  custom: {
    50: '#89cce6',
    500: '#42b7db',
    950: '#000000',
  },
}

SCSS

$custom: #42b7db;
$custom-light: #89cce6;
$custom-dark: #000000;

JSON

{
  "hex": "#42b7db",
  "rgb": {
    "r": 66,
    "g": 183,
    "b": 219
  },
  "hsl": {
    "h": 194.118,
    "s": 68,
    "l": 55.882
  },
  "oklch": {
    "l": 0.72902,
    "c": 0.11441,
    "h": 222.3
  },
  "luminance": 0.4014
}

Semantic roles & 50–950 ramp

primary

#42B7DB

secondary

#DCAC9D

accent

#663DEB

background

#F9FCFE

surface

#F1F9FC

border

#CBD2D5

text

#0D1316

muted

#7E8284

Preview Lab

Preview with #42B7DB

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

Preview Lab → · Contrast checker → · Palette generator →