#42A6CD#42A6CD

#42A6CD is a light, moderate cyan. Relative luminance 0.328; OKLCH L 68.3% C 0.108 H 227.5°. Best body text is #000000 at 7.57:1 contrast (WCAG AA passes).

Color values

HEX	#42A6CD
RGB	rgb(66, 166, 205)
HSL	hsl(197, 58%, 53%)
HSV	hsv(197, 68%, 80%)
CMYK	cmyk(67.8%, 19%, 0%, 19.6%)
CIE-LAB	lab(64.03, -16.68, -28.38)
CIE-LCH	lch(64.03, 32.92, 239.56°)
OKLab	oklab(68.29% -0.0728 -0.0794)
OKLCH	oklch(68.29% 0.108 227.5)
XYZ	xyz(26.8980, 32.8355, 62.6661)
Luminance	0.3284 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#42A6CD #CD6942

analogous

#42CDAF #42A6CD #4260CD

triadic

#42A6CD #CD42A6 #A6CD42

tetradic

#42A6CD #AF42CD #CD6942 #60CD42

square

#42A6CD #AF42CD #CD6942 #60CD42

split-complementary

#42A6CD #CD4260 #CDAF42

monochromatic

#1F5D76 #2C84A6 #42A6CD #72BDDA #A3D4E7

Accessibility & contrast

On white

2.77

#42A6CD on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

7.57

#42A6CD on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #42A6CD

7.57:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##42A6CD	#FFFFFF	#000000	##000000
##42A6CD	1.00	2.77	7.57	7.57
#FFFFFF	2.77	1.00	21.00	21.00
#000000	7.57	21.00	1.00	1.00
##000000	7.57	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#91A3CF

Deuteranopia (green-blind)

#7E95CD

Tritanopia (blue-blind)

#00B1B3

Achromatopsia (no color)

#9B9B9B

Design tokens & code

CSS

--color: #42a6cd;
/* rgb */ color: rgb(66, 166, 205);
/* oklch */ color: oklch(68.3% 0.108 227.5);

Tailwind

colors: {
  custom: {
    50: '#86c0dc',
    500: '#42a6cd',
    950: '#000000',
  },
}

SCSS

$custom: #42a6cd;
$custom-light: #86c0dc;
$custom-dark: #000000;

JSON

{
  "hex": "#42a6cd",
  "rgb": {
    "r": 66,
    "g": 166,
    "b": 205
  },
  "hsl": {
    "h": 196.835,
    "s": 58.159,
    "l": 53.137
  },
  "oklch": {
    "l": 0.68292,
    "c": 0.10775,
    "h": 227.5
  },
  "luminance": 0.32838
}

Semantic roles & 50–950 ramp

primary

#42A6CD

secondary

#D3A897

accent

#7246E1

background

#F8FBFD

surface

#F0F7FB

border

#CBD0D4

text

#0C1215

muted

#7D8183

Preview Lab

Preview with #42A6CD

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

Preview Lab → · Contrast checker → · Palette generator →