#42BBE2#42BBE2

#42BBE2 is a light, moderate cyan. Relative luminance 0.422; OKLCH L 74.1% C 0.118 H 223.6°. Best body text is #000000 at 9.44:1 contrast (WCAG AA passes).

Color values

HEX	#42BBE2
RGB	rgb(66, 187, 226)
HSL	hsl(195, 73%, 57%)
HSV	hsv(195, 71%, 89%)
CMYK	cmyk(70.8%, 17.3%, 0%, 11.4%)
CIE-LAB	lab(71.00, -20.97, -29.19)
CIE-LCH	lch(71.00, 35.94, 234.30°)
OKLab	oklab(74.14% -0.0859 -0.0816)
OKLCH	oklch(74.14% 0.118 223.6)
XYZ	xyz(33.7389, 42.1860, 78.3013)
Luminance	0.4219 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#42BBE2 #E26942

analogous

#42E2B9 #42BBE2 #426BE2

triadic

#42BBE2 #E242BB #BBE242

tetradic

#42BBE2 #B942E2 #E26942 #6BE242

square

#42BBE2 #B942E2 #E26942 #6BE242

split-complementary

#42BBE2 #E2426B #E2B942

monochromatic

#177593 #1F9FC8 #42BBE2 #77CEEA #ACE1F2

Accessibility & contrast

On white

2.23

#42BBE2 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

9.44

#42BBE2 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #42BBE2

9.44:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##42BBE2	#FFFFFF	#000000	##000000
##42BBE2	1.00	2.23	9.44	9.44
#FFFFFF	2.23	1.00	21.00	21.00
#000000	9.44	21.00	1.00	1.00
##000000	9.44	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#A5B7E4

Deuteranopia (green-blind)

#8FA7E2

Tritanopia (blue-blind)

#00C7C8

Achromatopsia (no color)

#AEAEAE

Design tokens & code

CSS

--color: #42bbe2;
/* rgb */ color: rgb(66, 187, 226);
/* oklch */ color: oklch(74.1% 0.118 223.6);

Tailwind

colors: {
  custom: {
    50: '#8acfeb',
    500: '#42bbe2',
    950: '#000000',
  },
}

SCSS

$custom: #42bbe2;
$custom-light: #8acfeb;
$custom-dark: #000000;

JSON

{
  "hex": "#42bbe2",
  "rgb": {
    "r": 66,
    "g": 187,
    "b": 226
  },
  "hsl": {
    "h": 194.625,
    "s": 73.394,
    "l": 57.255
  },
  "oklch": {
    "l": 0.74137,
    "c": 0.11849,
    "h": 223.6
  },
  "luminance": 0.4219
}

Semantic roles & 50–950 ramp

primary

#42BBE2

secondary

#E0AF9F

accent

#6538F0

background

#F9FCFE

surface

#F2F9FD

border

#CCD2D5

text

#0D1416

muted

#7E8284

Preview Lab

Preview with #42BBE2

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

Preview Lab → · Contrast checker → · Palette generator →