#40A1BB#40A1BB

#40A1BB is a light, moderate cyan. Relative luminance 0.302; OKLCH L 66.3% C 0.097 H 218.7°. Best body text is #000000 at 7.03:1 contrast (WCAG AA passes).

Color values

HEX	#40A1BB
RGB	rgb(64, 161, 187)
HSL	hsl(193, 49%, 49%)
HSV	hsv(193, 66%, 73%)
CMYK	cmyk(65.8%, 13.9%, 0%, 26.7%)
CIE-LAB	lab(61.80, -20.07, -21.77)
CIE-LCH	lch(61.80, 29.61, 227.33°)
OKLab	oklab(66.26% -0.0756 -0.0606)
OKLCH	oklch(66.26% 0.097 218.7)
XYZ	xyz(23.8252, 30.1650, 51.5709)
Luminance	0.3017 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#40A1BB #BB5A40

analogous

#40BB98 #40A1BB #4064BB

triadic

#40A1BB #BB40A1 #A1BB40

tetradic

#40A1BB #9840BB #BB5A40 #64BB40

square

#40A1BB #9840BB #BB5A40 #64BB40

split-complementary

#40A1BB #BB4064 #BB9840

monochromatic

#215260 #307A8D #40A1BB #6CB8CD #99CEDC

Accessibility & contrast

On white

2.99

#40A1BB on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

7.03

#40A1BB on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #40A1BB

7.03:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##40A1BB	#FFFFFF	#000000	##000000
##40A1BB	1.00	2.99	7.03	7.03
#FFFFFF	2.99	1.00	21.00	21.00
#000000	7.03	21.00	1.00	1.00
##000000	7.03	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#919DBC

Deuteranopia (green-blind)

#7F90BB

Tritanopia (blue-blind)

#00AAA9

Achromatopsia (no color)

#959595

Design tokens & code

CSS

--color: #40a1bb;
/* rgb */ color: rgb(64, 161, 187);
/* oklch */ color: oklch(66.3% 0.097 218.7);

Tailwind

colors: {
  custom: {
    50: '#83bdcf',
    500: '#40a1bb',
    950: '#000000',
  },
}

SCSS

$custom: #40a1bb;
$custom-light: #83bdcf;
$custom-dark: #000000;

JSON

{
  "hex": "#40a1bb",
  "rgb": {
    "r": 64,
    "g": 161,
    "b": 187
  },
  "hsl": {
    "h": 192.683,
    "s": 49.004,
    "l": 49.216
  },
  "oklch": {
    "l": 0.66263,
    "c": 0.0969,
    "h": 218.7
  },
  "luminance": 0.30168
}

Semantic roles & 50–950 ramp

primary

#40A1BB

secondary

#C89B8F

accent

#6C4FD9

background

#F8FBFC

surface

#F0F6F9

border

#CBD0D2

text

#0C1213

muted

#7D8182

Preview Lab

Preview with #40A1BB

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

Preview Lab → · Contrast checker → · Palette generator →