#40B3CC#40B3CC

#40B3CC is a light, moderate cyan. Relative luminance 0.377; OKLCH L 71.3% C 0.107 H 215.1°. Best body text is #000000 at 8.54:1 contrast (WCAG AA passes).

Color values

HEX	#40B3CC
RGB	rgb(64, 179, 204)
HSL	hsl(191, 58%, 53%)
HSV	hsv(191, 69%, 80%)
CMYK	cmyk(68.6%, 12.3%, 0%, 20%)
CIE-LAB	lab(67.79, -24.05, -22.06)
CIE-LCH	lch(67.79, 32.64, 222.53°)
OKLab	oklab(71.28% -0.0873 -0.0614)
OKLCH	oklch(71.28% 0.107 215.1)
XYZ	xyz(29.1290, 37.6865, 62.8541)
Luminance	0.3769 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#40B3CC #CC5940

analogous

#40CC9F #40B3CC #406DCC

triadic

#40B3CC #CC40B3 #B3CC40

tetradic

#40B3CC #9F40CC #CC5940 #6DCC40

square

#40B3CC #9F40CC #CC5940 #6DCC40

split-complementary

#40B3CC #CC406D #CC9F40

monochromatic

#1F6473 #2C8EA3 #40B3CC #70C6D9 #A1D9E6

Accessibility & contrast

On white

2.46

#40B3CC on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

8.54

#40B3CC on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #40B3CC

8.54:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##40B3CC	#FFFFFF	#000000	##000000
##40B3CC	1.00	2.46	8.54	8.54
#FFFFFF	2.46	1.00	21.00	21.00
#000000	8.54	21.00	1.00	1.00
##000000	8.54	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#A1ADCD

Deuteranopia (green-blind)

#8E9FCC

Tritanopia (blue-blind)

#00BCBB

Achromatopsia (no color)

#A5A5A5

Design tokens & code

CSS

--color: #40b3cc;
/* rgb */ color: rgb(64, 179, 204);
/* oklch */ color: oklch(71.3% 0.107 215.1);

Tailwind

colors: {
  custom: {
    50: '#86cadb',
    500: '#40b3cc',
    950: '#000000',
  },
}

SCSS

$custom: #40b3cc;
$custom-light: #86cadb;
$custom-dark: #000000;

JSON

{
  "hex": "#40b3cc",
  "rgb": {
    "r": 64,
    "g": 179,
    "b": 204
  },
  "hsl": {
    "h": 190.714,
    "s": 57.851,
    "l": 52.549
  },
  "oklch": {
    "l": 0.7128,
    "c": 0.10679,
    "h": 215.1
  },
  "luminance": 0.3769
}

Semantic roles & 50–950 ramp

primary

#40B3CC

secondary

#D2A095

accent

#6247E1

background

#F8FCFD

surface

#F0F8FB

border

#CBD1D4

text

#0D1315

muted

#7D8283

Preview Lab

Preview with #40B3CC

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

Preview Lab → · Contrast checker → · Palette generator →