#42A1CD#42A1CD

#42A1CD is a light, moderate cyan. Relative luminance 0.311; OKLCH L 67.1% C 0.109 H 231.8°. Best body text is #000000 at 7.21:1 contrast (WCAG AA passes).

Color values

HEX	#42A1CD
RGB	rgb(66, 161, 205)
HSL	hsl(199, 58%, 53%)
HSV	hsv(199, 68%, 80%)
CMYK	cmyk(67.8%, 21.5%, 0%, 19.6%)
CIE-LAB	lab(62.55, -13.98, -30.66)
CIE-LCH	lch(62.55, 33.70, 245.48°)
OKLab	oklab(67.11% -0.0677 -0.086)
OKLCH	oklch(67.11% 0.109 231.8)
XYZ	xyz(26.0067, 31.0529, 62.3690)
Luminance	0.3106 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#42A1CD #CD6E42

analogous

#42CDB4 #42A1CD #425BCD

triadic

#42A1CD #CD42A1 #A1CD42

tetradic

#42A1CD #B442CD #CD6E42 #5BCD42

square

#42A1CD #B442CD #CD6E42 #5BCD42

split-complementary

#42A1CD #CD425B #CDB442

monochromatic

#1F5A76 #2C7FA6 #42A1CD #72B9DA #A3D1E7

Accessibility & contrast

On white

2.91

#42A1CD on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

7.21

#42A1CD on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #42A1CD

7.21:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##42A1CD	#FFFFFF	#000000	##000000
##42A1CD	1.00	2.91	7.21	7.21
#FFFFFF	2.91	1.00	21.00	21.00
#000000	7.21	21.00	1.00	1.00
##000000	7.21	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#8B9FCF

Deuteranopia (green-blind)

#7891CC

Tritanopia (blue-blind)

#00ADB0

Achromatopsia (no color)

#979797

Design tokens & code

CSS

--color: #42a1cd;
/* rgb */ color: rgb(66, 161, 205);
/* oklch */ color: oklch(67.1% 0.109 231.8);

Tailwind

colors: {
  custom: {
    50: '#86bcdc',
    500: '#42a1cd',
    950: '#000000',
  },
}

SCSS

$custom: #42a1cd;
$custom-light: #86bcdc;
$custom-dark: #000000;

JSON

{
  "hex": "#42a1cd",
  "rgb": {
    "r": 66,
    "g": 161,
    "b": 205
  },
  "hsl": {
    "h": 198.993,
    "s": 58.159,
    "l": 53.137
  },
  "oklch": {
    "l": 0.67114,
    "c": 0.10946,
    "h": 231.8
  },
  "luminance": 0.31056
}

Semantic roles & 50–950 ramp

primary

#42A1CD

secondary

#D3AA97

accent

#7746E1

background

#F8FBFD

surface

#F0F6FB

border

#CBD0D4

text

#0C1215

muted

#7D8183

Preview Lab

Preview with #42A1CD

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

Preview Lab → · Contrast checker → · Palette generator →