#42B0D5#42B0D5

#42B0D5 is a light, moderate cyan. Relative luminance 0.370; OKLCH L 71.0% C 0.111 H 224.2°. Best body text is #000000 at 8.40:1 contrast (WCAG AA passes).

Color values

HEX	#42B0D5
RGB	rgb(66, 176, 213)
HSL	hsl(195, 64%, 55%)
HSV	hsv(195, 69%, 84%)
CMYK	cmyk(69%, 17.4%, 0%, 16.5%)
CIE-LAB	lab(67.28, -19.40, -27.79)
CIE-LCH	lch(67.28, 33.89, 235.09°)
OKLab	oklab(71% -0.0799 -0.0777)
OKLCH	oklch(71% 0.111 224.2)
XYZ	xyz(29.7775, 37.0097, 68.5121)
Luminance	0.3701 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#42B0D5 #D56742

analogous

#42D5B0 #42B0D5 #4267D5

triadic

#42B0D5 #D542B0 #B0D542

tetradic

#42B0D5 #B042D5 #D56742 #67D542

square

#42B0D5 #B042D5 #D56742 #67D542

split-complementary

#42B0D5 #D54267 #D5B042

monochromatic

#1C6780 #288FB2 #42B0D5 #74C5E0 #A6DAEB

Accessibility & contrast

On white

2.50

#42B0D5 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

8.40

#42B0D5 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #42B0D5

8.40:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##42B0D5	#FFFFFF	#000000	##000000
##42B0D5	1.00	2.50	8.40	8.40
#FFFFFF	2.50	1.00	21.00	21.00
#000000	8.40	21.00	1.00	1.00
##000000	8.40	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#9BACD7

Deuteranopia (green-blind)

#879DD5

Tritanopia (blue-blind)

#00BBBC

Achromatopsia (no color)

#A4A4A4

Design tokens & code

CSS

--color: #42b0d5;
/* rgb */ color: rgb(66, 176, 213);
/* oklch */ color: oklch(71.0% 0.111 224.2);

Tailwind

colors: {
  custom: {
    50: '#88c7e2',
    500: '#42b0d5',
    950: '#000000',
  },
}

SCSS

$custom: #42b0d5;
$custom-light: #88c7e2;
$custom-dark: #000000;

JSON

{
  "hex": "#42b0d5",
  "rgb": {
    "r": 66,
    "g": 176,
    "b": 213
  },
  "hsl": {
    "h": 195.102,
    "s": 63.636,
    "l": 54.706
  },
  "oklch": {
    "l": 0.70999,
    "c": 0.11144,
    "h": 224.2
  },
  "luminance": 0.37013
}

Semantic roles & 50–950 ramp

primary

#42B0D5

secondary

#D8AA9A

accent

#6B41E7

background

#F9FCFD

surface

#F1F8FB

border

#CBD1D4

text

#0D1315

muted

#7E8283

Preview Lab

Preview with #42B0D5

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

Preview Lab → · Contrast checker → · Palette generator →