#40B0CC#40B0CC

#40B0CC is a light, moderate cyan. Relative luminance 0.365; OKLCH L 70.6% C 0.107 H 217.8°. Best body text is #000000 at 8.30:1 contrast (WCAG AA passes).

Color values

HEX	#40B0CC
RGB	rgb(64, 176, 204)
HSL	hsl(192, 58%, 53%)
HSV	hsv(192, 69%, 80%)
CMYK	cmyk(68.6%, 13.7%, 0%, 20%)
CIE-LAB	lab(66.90, -22.52, -23.43)
CIE-LCH	lch(66.90, 32.50, 226.12°)
OKLab	oklab(70.56% -0.0843 -0.0653)
OKLCH	oklch(70.56% 0.107 217.8)
XYZ	xyz(28.5342, 36.4971, 62.6558)
Luminance	0.3650 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#40B0CC #CC5C40

analogous

#40CCA2 #40B0CC #406ACC

triadic

#40B0CC #CC40B0 #B0CC40

tetradic

#40B0CC #A240CC #CC5C40 #6ACC40

square

#40B0CC #A240CC #CC5C40 #6ACC40

split-complementary

#40B0CC #CC406A #CCA240

monochromatic

#1F6273 #2C8BA3 #40B0CC #70C4D9 #A1D8E6

Accessibility & contrast

On white

2.53

#40B0CC on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

8.30

#40B0CC on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #40B0CC

8.30:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##40B0CC	#FFFFFF	#000000	##000000
##40B0CC	1.00	2.53	8.30	8.30
#FFFFFF	2.53	1.00	21.00	21.00
#000000	8.30	21.00	1.00	1.00
##000000	8.30	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#9EABCE

Deuteranopia (green-blind)

#8A9DCC

Tritanopia (blue-blind)

#00BAB9

Achromatopsia (no color)

#A3A3A3

Design tokens & code

CSS

--color: #40b0cc;
/* rgb */ color: rgb(64, 176, 204);
/* oklch */ color: oklch(70.6% 0.107 217.8);

Tailwind

colors: {
  custom: {
    50: '#86c7db',
    500: '#40b0cc',
    950: '#000000',
  },
}

SCSS

$custom: #40b0cc;
$custom-light: #86c7db;
$custom-dark: #000000;

JSON

{
  "hex": "#40b0cc",
  "rgb": {
    "r": 64,
    "g": 176,
    "b": 204
  },
  "hsl": {
    "h": 192,
    "s": 57.851,
    "l": 52.549
  },
  "oklch": {
    "l": 0.70564,
    "c": 0.10666,
    "h": 217.8
  },
  "luminance": 0.365
}

Semantic roles & 50–950 ramp

primary

#40B0CC

secondary

#D2A295

accent

#6647E1

background

#F8FCFD

surface

#F0F8FB

border

#CBD1D4

text

#0C1315

muted

#7D8283

Preview Lab

Preview with #40B0CC

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

Preview Lab → · Contrast checker → · Palette generator →