#42A8CE#42A8CE

#42A8CE is a light, moderate cyan. Relative luminance 0.336; OKLCH L 68.8% C 0.108 H 226.4°. Best body text is #000000 at 7.72:1 contrast (WCAG AA passes).

Color values

HEX	#42A8CE
RGB	rgb(66, 168, 206)
HSL	hsl(196, 59%, 53%)
HSV	hsv(196, 68%, 81%)
CMYK	cmyk(68%, 18.4%, 0%, 19.2%)
CIE-LAB	lab(64.66, -17.42, -27.97)
CIE-LCH	lch(64.66, 32.95, 238.08°)
OKLab	oklab(68.81% -0.0744 -0.0782)
OKLCH	oklch(68.81% 0.108 226.4)
XYZ	xyz(27.3855, 33.6167, 63.4260)
Luminance	0.3362 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#42A8CE #CE6842

analogous

#42CEAE #42A8CE #4262CE

triadic

#42A8CE #CE42A8 #A8CE42

tetradic

#42A8CE #AE42CE #CE6842 #62CE42

square

#42A8CE #AE42CE #CE6842 #62CE42

split-complementary

#42A8CE #CE4262 #CEAE42

monochromatic

#1F5F77 #2B86A7 #42A8CE #73BEDB #A3D5E7

Accessibility & contrast

On white

2.72

#42A8CE on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

7.72

#42A8CE on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #42A8CE

7.72:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##42A8CE	#FFFFFF	#000000	##000000
##42A8CE	1.00	2.72	7.72	7.72
#FFFFFF	2.72	1.00	21.00	21.00
#000000	7.72	21.00	1.00	1.00
##000000	7.72	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#94A5D0

Deuteranopia (green-blind)

#8097CE

Tritanopia (blue-blind)

#00B3B4

Achromatopsia (no color)

#9D9D9D

Design tokens & code

CSS

--color: #42a8ce;
/* rgb */ color: rgb(66, 168, 206);
/* oklch */ color: oklch(68.8% 0.108 226.4);

Tailwind

colors: {
  custom: {
    50: '#86c2dd',
    500: '#42a8ce',
    950: '#000000',
  },
}

SCSS

$custom: #42a8ce;
$custom-light: #86c2dd;
$custom-dark: #000000;

JSON

{
  "hex": "#42a8ce",
  "rgb": {
    "r": 66,
    "g": 168,
    "b": 206
  },
  "hsl": {
    "h": 196.286,
    "s": 58.824,
    "l": 53.333
  },
  "oklch": {
    "l": 0.68808,
    "c": 0.108,
    "h": 226.4
  },
  "luminance": 0.3362
}

Semantic roles & 50–950 ramp

primary

#42A8CE

secondary

#D4A898

accent

#7046E2

background

#F8FBFD

surface

#F0F7FB

border

#CBD0D4

text

#0C1215

muted

#7D8183

Preview Lab

Preview with #42A8CE

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

Preview Lab → · Contrast checker → · Palette generator →