#40BBD8#40BBD8

#40BBD8 is a light, moderate cyan. Relative luminance 0.416; OKLCH L 73.7% C 0.113 H 216.9°. Best body text is #000000 at 9.32:1 contrast (WCAG AA passes).

Color values

HEX	#40BBD8
RGB	rgb(64, 187, 216)
HSL	hsl(191, 66%, 55%)
HSV	hsv(191, 70%, 85%)
CMYK	cmyk(70.4%, 13.4%, 0%, 15.3%)
CIE-LAB	lab(70.58, -24.38, -24.38)
CIE-LCH	lch(70.58, 34.48, 225.00°)
OKLab	oklab(73.67% -0.0906 -0.068)
OKLCH	oklch(73.67% 0.113 216.9)
XYZ	xyz(32.2742, 41.5848, 71.2782)
Luminance	0.4159 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#40BBD8 #D85D40

analogous

#40D8A9 #40BBD8 #406FD8

triadic

#40BBD8 #D840BB #BBD840

tetradic

#40BBD8 #A940D8 #D85D40 #6FD840

square

#40BBD8 #A940D8 #D85D40 #6FD840

split-complementary

#40BBD8 #D8406F #D8A940

monochromatic

#1B6F83 #259AB6 #40BBD8 #73CDE2 #A6DFED

Accessibility & contrast

On white

2.25

#40BBD8 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

9.32

#40BBD8 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #40BBD8

9.32:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##40BBD8	#FFFFFF	#000000	##000000
##40BBD8	1.00	2.25	9.32	9.32
#FFFFFF	2.25	1.00	21.00	21.00
#000000	9.32	21.00	1.00	1.00
##000000	9.32	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#A8B5DA

Deuteranopia (green-blind)

#93A6D8

Tritanopia (blue-blind)

#00C5C4

Achromatopsia (no color)

#ADADAD

Design tokens & code

CSS

--color: #40bbd8;
/* rgb */ color: rgb(64, 187, 216);
/* oklch */ color: oklch(73.7% 0.113 216.9);

Tailwind

colors: {
  custom: {
    50: '#88cfe4',
    500: '#40bbd8',
    950: '#000000',
  },
}

SCSS

$custom: #40bbd8;
$custom-light: #88cfe4;
$custom-dark: #000000;

JSON

{
  "hex": "#40bbd8",
  "rgb": {
    "r": 64,
    "g": 187,
    "b": 216
  },
  "hsl": {
    "h": 191.447,
    "s": 66.087,
    "l": 54.902
  },
  "oklch": {
    "l": 0.73669,
    "c": 0.11327,
    "h": 216.9
  },
  "luminance": 0.41589
}

Semantic roles & 50–950 ramp

primary

#40BBD8

secondary

#DAA69A

accent

#5F3FE9

background

#F9FCFD

surface

#F1F9FB

border

#CBD2D4

text

#0D1415

muted

#7E8283

Preview Lab

Preview with #40BBD8

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

Preview Lab → · Contrast checker → · Palette generator →