#42B7DE#42B7DE

#42B7DE is a light, moderate cyan. Relative luminance 0.403; OKLCH L 73.0% C 0.116 H 224.2°. Best body text is #000000 at 9.06:1 contrast (WCAG AA passes).

Color values

HEX	#42B7DE
RGB	rgb(66, 183, 222)
HSL	hsl(195, 70%, 56%)
HSV	hsv(195, 70%, 87%)
CMYK	cmyk(70.3%, 17.6%, 0%, 12.9%)
CIE-LAB	lab(69.68, -20.17, -29.04)
CIE-LCH	lch(69.68, 35.36, 235.21°)
OKLab	oklab(73.03% -0.0835 -0.0812)
OKLCH	oklch(73.03% 0.116 224.2)
XYZ	xyz(32.3597, 40.2955, 75.1654)
Luminance	0.4030 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#42B7DE #DE6942

analogous

#42DEB7 #42B7DE #4269DE

triadic

#42B7DE #DE42B7 #B7DE42

tetradic

#42B7DE #B742DE #DE6942 #69DE42

square

#42B7DE #B742DE #DE6942 #69DE42

split-complementary

#42B7DE #DE4269 #DEB742

monochromatic

#19708D #2299C1 #42B7DE #76CBE7 #AADFF0

Accessibility & contrast

On white

2.32

#42B7DE on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

9.06

#42B7DE on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #42B7DE

9.06:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##42B7DE	#FFFFFF	#000000	##000000
##42B7DE	1.00	2.32	9.06	9.06
#FFFFFF	2.32	1.00	21.00	21.00
#000000	9.06	21.00	1.00	1.00
##000000	9.06	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#A1B3E0

Deuteranopia (green-blind)

#8CA3DE

Tritanopia (blue-blind)

#00C3C4

Achromatopsia (no color)

#AAAAAA

Design tokens & code

CSS

--color: #42b7de;
/* rgb */ color: rgb(66, 183, 222);
/* oklch */ color: oklch(73.0% 0.116 224.2);

Tailwind

colors: {
  custom: {
    50: '#8acce8',
    500: '#42b7de',
    950: '#000000',
  },
}

SCSS

$custom: #42b7de;
$custom-light: #8acce8;
$custom-dark: #000000;

JSON

{
  "hex": "#42b7de",
  "rgb": {
    "r": 66,
    "g": 183,
    "b": 222
  },
  "hsl": {
    "h": 195,
    "s": 70.27,
    "l": 56.471
  },
  "oklch": {
    "l": 0.7303,
    "c": 0.11646,
    "h": 224.2
  },
  "luminance": 0.40299
}

Semantic roles & 50–950 ramp

primary

#42B7DE

secondary

#DEAE9E

accent

#673BED

background

#F9FCFE

surface

#F1F8FC

border

#CBD1D5

text

#0D1316

muted

#7E8284

Preview Lab

Preview with #42B7DE

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

Preview Lab → · Contrast checker → · Palette generator →