#42A7D9#42A7D9

#42A7D9 is a light, moderate cyan. Relative luminance 0.338; OKLCH L 69.1% C 0.118 H 233.8°. Best body text is #000000 at 7.76:1 contrast (WCAG AA passes).

Color values

HEX	#42A7D9
RGB	rgb(66, 167, 217)
HSL	hsl(200, 67%, 55%)
HSV	hsv(200, 70%, 85%)
CMYK	cmyk(69.6%, 23%, 0%, 14.9%)
CIE-LAB	lab(64.81, -13.31, -33.83)
CIE-LCH	lch(64.81, 36.35, 248.53°)
OKLab	oklab(69.07% -0.0695 -0.0951)
OKLCH	oklch(69.07% 0.118 233.8)
XYZ	xyz(28.5849, 33.8023, 70.6502)
Luminance	0.3381 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#42A7D9 #D97442

analogous

#42D9C0 #42A7D9 #425BD9

triadic

#42A7D9 #D942A7 #A7D942

tetradic

#42A7D9 #C042D9 #D97442 #5BD942

square

#42A7D9 #C042D9 #D97442 #5BD942

split-complementary

#42A7D9 #D9425B #D9C042

monochromatic

#1B6286 #2588B9 #42A7D9 #75BFE3 #A8D6ED

Accessibility & contrast

On white

2.71

#42A7D9 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

7.76

#42A7D9 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #42A7D9

7.76:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##42A7D9	#FFFFFF	#000000	##000000
##42A7D9	1.00	2.71	7.76	7.76
#FFFFFF	2.71	1.00	21.00	21.00
#000000	7.76	21.00	1.00	1.00
##000000	7.76	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#8FA6DB

Deuteranopia (green-blind)

#7A97D8

Tritanopia (blue-blind)

#00B4B8

Achromatopsia (no color)

#9D9D9D

Design tokens & code

CSS

--color: #42a7d9;
/* rgb */ color: rgb(66, 167, 217);
/* oklch */ color: oklch(69.1% 0.118 233.8);

Tailwind

colors: {
  custom: {
    50: '#88c1e5',
    500: '#42a7d9',
    950: '#000000',
  },
}

SCSS

$custom: #42a7d9;
$custom-light: #88c1e5;
$custom-dark: #000000;

JSON

{
  "hex": "#42a7d9",
  "rgb": {
    "r": 66,
    "g": 167,
    "b": 217
  },
  "hsl": {
    "h": 199.868,
    "s": 66.52,
    "l": 55.49
  },
  "oklch": {
    "l": 0.69072,
    "c": 0.11778,
    "h": 233.8
  },
  "luminance": 0.33805
}

Semantic roles & 50–950 ramp

primary

#42A7D9

secondary

#DBB19C

accent

#773EE9

background

#F9FBFE

surface

#F1F7FC

border

#CBD0D5

text

#0D1215

muted

#7E8184

Preview Lab

Preview with #42A7D9

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

Preview Lab → · Contrast checker → · Palette generator →