#42A9D6#42A9D6

#42A9D6 is a light, moderate cyan. Relative luminance 0.344; OKLCH L 69.4% C 0.114 H 230.6°. Best body text is #000000 at 7.88:1 contrast (WCAG AA passes).

Color values

HEX	#42A9D6
RGB	rgb(66, 169, 214)
HSL	hsl(198, 64%, 55%)
HSV	hsv(198, 69%, 84%)
CMYK	cmyk(69.2%, 21%, 0%, 16.1%)
CIE-LAB	lab(65.27, -15.37, -31.45)
CIE-LCH	lch(65.27, 35.01, 243.96°)
OKLab	oklab(69.4% -0.0725 -0.0882)
OKLCH	oklch(69.4% 0.114 230.6)
XYZ	xyz(28.5675, 34.3860, 68.7369)
Luminance	0.3439 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#42A9D6 #D66F42

analogous

#42D6B9 #42A9D6 #425FD6

triadic

#42A9D6 #D642A9 #A9D642

tetradic

#42A9D6 #B942D6 #D66F42 #5FD642

square

#42A9D6 #B942D6 #D66F42 #5FD642

split-complementary

#42A9D6 #D6425F #D6B942

monochromatic

#1C6382 #2789B4 #42A9D6 #74C0E1 #A7D7EC

Accessibility & contrast

On white

2.67

#42A9D6 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

7.88

#42A9D6 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #42A9D6

7.88:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##42A9D6	#FFFFFF	#000000	##000000
##42A9D6	1.00	2.67	7.88	7.88
#FFFFFF	2.67	1.00	21.00	21.00
#000000	7.88	21.00	1.00	1.00
##000000	7.88	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#92A7D8

Deuteranopia (green-blind)

#7E98D5

Tritanopia (blue-blind)

#00B5B8

Achromatopsia (no color)

#9E9E9E

Design tokens & code

CSS

--color: #42a9d6;
/* rgb */ color: rgb(66, 169, 214);
/* oklch */ color: oklch(69.4% 0.114 230.6);

Tailwind

colors: {
  custom: {
    50: '#88c2e2',
    500: '#42a9d6',
    950: '#000000',
  },
}

SCSS

$custom: #42a9d6;
$custom-light: #88c2e2;
$custom-dark: #000000;

JSON

{
  "hex": "#42a9d6",
  "rgb": {
    "r": 66,
    "g": 169,
    "b": 214
  },
  "hsl": {
    "h": 198.243,
    "s": 64.348,
    "l": 54.902
  },
  "oklch": {
    "l": 0.694,
    "c": 0.11422,
    "h": 230.6
  },
  "luminance": 0.34389
}

Semantic roles & 50–950 ramp

primary

#42A9D6

secondary

#D9AE9B

accent

#7340E7

background

#F9FBFD

surface

#F1F7FB

border

#CBD0D4

text

#0D1215

muted

#7E8183

Preview Lab

Preview with #42A9D6

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

Preview Lab → · Contrast checker → · Palette generator →