#40B2C9#40B2C9

#40B2C9 is a light, moderate cyan. Relative luminance 0.371; OKLCH L 70.9% C 0.105 H 213.8°. Best body text is #000000 at 8.43:1 contrast (WCAG AA passes).

Color values

HEX	#40B2C9
RGB	rgb(64, 178, 201)
HSL	hsl(190, 56%, 52%)
HSV	hsv(190, 68%, 79%)
CMYK	cmyk(68.2%, 11.4%, 0%, 21.2%)
CIE-LAB	lab(67.39, -24.47, -21.03)
CIE-LCH	lch(67.39, 32.27, 220.67°)
OKLab	oklab(70.92% -0.0875 -0.0585)
OKLCH	oklch(70.92% 0.105 213.8)
XYZ	xyz(28.5729, 37.1446, 60.9108)
Luminance	0.3715 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#40B2C9 #C95740

analogous

#40C99C #40B2C9 #406EC9

triadic

#40B2C9 #C940B2 #B2C940

tetradic

#40B2C9 #9C40C9 #C95740 #6EC940

square

#40B2C9 #9C40C9 #C95740 #6EC940

split-complementary

#40B2C9 #C9406E #C99C40

monochromatic

#1F626F #2D8C9F #40B2C9 #70C5D6 #9FD8E4

Accessibility & contrast

On white

2.49

#40B2C9 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

8.43

#40B2C9 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #40B2C9

8.43:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##40B2C9	#FFFFFF	#000000	##000000
##40B2C9	1.00	2.49	8.43	8.43
#FFFFFF	2.49	1.00	21.00	21.00
#000000	8.43	21.00	1.00	1.00
##000000	8.43	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#A1ACCA

Deuteranopia (green-blind)

#8E9EC9

Tritanopia (blue-blind)

#00BBB9

Achromatopsia (no color)

#A4A4A4

Design tokens & code

CSS

--color: #40b2c9;
/* rgb */ color: rgb(64, 178, 201);
/* oklch */ color: oklch(70.9% 0.105 213.8);

Tailwind

colors: {
  custom: {
    50: '#86c9d9',
    500: '#40b2c9',
    950: '#000000',
  },
}

SCSS

$custom: #40b2c9;
$custom-light: #86c9d9;
$custom-dark: #000000;

JSON

{
  "hex": "#40b2c9",
  "rgb": {
    "r": 64,
    "g": 178,
    "b": 201
  },
  "hsl": {
    "h": 190.073,
    "s": 55.918,
    "l": 51.961
  },
  "oklch": {
    "l": 0.7092,
    "c": 0.10529,
    "h": 213.8
  },
  "luminance": 0.37148
}

Semantic roles & 50–950 ramp

primary

#40B2C9

secondary

#D09E94

accent

#6249DF

background

#F8FCFD

surface

#F0F8FA

border

#CBD1D3

text

#0C1314

muted

#7D8283

Preview Lab

Preview with #40B2C9

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

Preview Lab → · Contrast checker → · Palette generator →