#42A7DB#42A7DB

#42A7DB is a light, moderate cyan. Relative luminance 0.339; OKLCH L 69.2% C 0.120 H 234.9°. Best body text is #000000 at 7.78:1 contrast (WCAG AA passes).

Color values

HEX	#42A7DB
RGB	rgb(66, 167, 219)
HSL	hsl(200, 68%, 56%)
HSV	hsv(200, 70%, 86%)
CMYK	cmyk(69.9%, 23.7%, 0%, 14.1%)
CIE-LAB	lab(64.89, -12.65, -34.80)
CIE-LCH	lch(64.89, 37.03, 250.03°)
OKLab	oklab(69.17% -0.0688 -0.0979)
OKLCH	oklch(69.17% 0.12 234.9)
XYZ	xyz(28.8466, 33.9069, 72.0285)
Luminance	0.3391 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#42A7DB #DB7642

analogous

#42DBC2 #42A7DB #425ADB

triadic

#42A7DB #DB42A7 #A7DB42

tetradic

#42A7DB #C242DB #DB7642 #5ADB42

square

#42A7DB #C242DB #DB7642 #5ADB42

split-complementary

#42A7DB #DB425A #DBC242

monochromatic

#1A6389 #2488BC #42A7DB #75BFE5 #A9D7EF

Accessibility & contrast

On white

2.70

#42A7DB on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

7.78

#42A7DB on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #42A7DB

7.78:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##42A7DB	#FFFFFF	#000000	##000000
##42A7DB	1.00	2.70	7.78	7.78
#FFFFFF	2.70	1.00	21.00	21.00
#000000	7.78	21.00	1.00	1.00
##000000	7.78	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#8EA6DD

Deuteranopia (green-blind)

#7997DA

Tritanopia (blue-blind)

#00B5B9

Achromatopsia (no color)

#9D9D9D

Design tokens & code

CSS

--color: #42a7db;
/* rgb */ color: rgb(66, 167, 219);
/* oklch */ color: oklch(69.2% 0.120 234.9);

Tailwind

colors: {
  custom: {
    50: '#88c1e6',
    500: '#42a7db',
    950: '#000000',
  },
}

SCSS

$custom: #42a7db;
$custom-light: #88c1e6;
$custom-dark: #000000;

JSON

{
  "hex": "#42a7db",
  "rgb": {
    "r": 66,
    "g": 167,
    "b": 219
  },
  "hsl": {
    "h": 200.392,
    "s": 68,
    "l": 55.882
  },
  "oklch": {
    "l": 0.69166,
    "c": 0.11967,
    "h": 234.9
  },
  "luminance": 0.3391
}

Semantic roles & 50–950 ramp

primary

#42A7DB

secondary

#DCB29D

accent

#783DEB

background

#F9FBFE

surface

#F1F7FC

border

#CBD0D5

text

#0D1216

muted

#7E8184

Preview Lab

Preview with #42A7DB

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

Preview Lab → · Contrast checker → · Palette generator →