#40BBD5#40BBD5

#40BBD5 is a light, moderate cyan. Relative luminance 0.414; OKLCH L 73.5% C 0.112 H 214.8°. Best body text is #000000 at 9.29:1 contrast (WCAG AA passes).

Color values

HEX	#40BBD5
RGB	rgb(64, 187, 213)
HSL	hsl(190, 64%, 54%)
HSV	hsv(190, 70%, 84%)
CMYK	cmyk(70%, 12.2%, 0%, 16.5%)
CIE-LAB	lab(70.48, -25.31, -22.90)
CIE-LCH	lch(70.48, 34.13, 222.14°)
OKLab	oklab(73.55% -0.0918 -0.0638)
OKLCH	oklch(73.55% 0.112 214.8)
XYZ	xyz(31.8899, 41.4311, 69.2542)
Luminance	0.4143 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#40BBD5 #D55A40

analogous

#40D5A5 #40BBD5 #4071D5

triadic

#40BBD5 #D540BB #BBD540

tetradic

#40BBD5 #A540D5 #D55A40 #71D540

square

#40BBD5 #A540D5 #D55A40 #71D540

split-complementary

#40BBD5 #D54071 #D5A540

monochromatic

#1C6D7F #2799B1 #40BBD5 #72CDE0 #A4DFEB

Accessibility & contrast

On white

2.26

#40BBD5 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

9.29

#40BBD5 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #40BBD5

9.29:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##40BBD5	#FFFFFF	#000000	##000000
##40BBD5	1.00	2.26	9.29	9.29
#FFFFFF	2.26	1.00	21.00	21.00
#000000	9.29	21.00	1.00	1.00
##000000	9.29	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#A9B5D6

Deuteranopia (green-blind)

#94A6D5

Tritanopia (blue-blind)

#00C5C3

Achromatopsia (no color)

#ACACAC

Design tokens & code

CSS

--color: #40bbd5;
/* rgb */ color: rgb(64, 187, 213);
/* oklch */ color: oklch(73.5% 0.112 214.8);

Tailwind

colors: {
  custom: {
    50: '#88cfe2',
    500: '#40bbd5',
    950: '#000000',
  },
}

SCSS

$custom: #40bbd5;
$custom-light: #88cfe2;
$custom-dark: #000000;

JSON

{
  "hex": "#40bbd5",
  "rgb": {
    "r": 64,
    "g": 187,
    "b": 213
  },
  "hsl": {
    "h": 190.47,
    "s": 63.948,
    "l": 54.314
  },
  "oklch": {
    "l": 0.73547,
    "c": 0.11177,
    "h": 214.8
  },
  "luminance": 0.41435
}

Semantic roles & 50–950 ramp

primary

#40BBD5

secondary

#D8A499

accent

#5E41E7

background

#F9FCFD

surface

#F1F9FB

border

#CBD2D4

text

#0D1415

muted

#7E8283

Preview Lab

Preview with #40BBD5

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

Preview Lab → · Contrast checker → · Palette generator →