#40BDDD#40BDDD

#40BDDD is a light, moderate cyan. Relative luminance 0.427; OKLCH L 74.3% C 0.116 H 218.6°. Best body text is #000000 at 9.54:1 contrast (WCAG AA passes).

Color values

HEX	#40BDDD
RGB	rgb(64, 189, 221)
HSL	hsl(192, 70%, 56%)
HSV	hsv(192, 71%, 87%)
CMYK	cmyk(71%, 14.5%, 0%, 13.3%)
CIE-LAB	lab(71.35, -23.83, -25.93)
CIE-LCH	lch(71.35, 35.21, 227.41°)
OKLab	oklab(74.35% -0.0906 -0.0724)
OKLCH	oklch(74.35% 0.116 218.6)
XYZ	xyz(33.3576, 42.7018, 74.8768)
Luminance	0.4271 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#40BDDD #DD6040

analogous

#40DDAE #40BDDD #406EDD

triadic

#40BDDD #DD40BD #BDDD40

tetradic

#40BDDD #AE40DD #DD6040 #6EDD40

square

#40BDDD #AE40DD #DD6040 #6EDD40

split-complementary

#40BDDD #DD406E #DDAE40

monochromatic

#19738A #229EBE #40BDDD #74CFE6 #A8E1EF

Accessibility & contrast

On white

2.20

#40BDDD on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

9.54

#40BDDD on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #40BDDD

9.54:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##40BDDD	#FFFFFF	#000000	##000000
##40BDDD	1.00	2.20	9.54	9.54
#FFFFFF	2.20	1.00	21.00	21.00
#000000	9.54	21.00	1.00	1.00
##000000	9.54	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#A9B8DF

Deuteranopia (green-blind)

#93A8DD

Tritanopia (blue-blind)

#00C8C7

Achromatopsia (no color)

#AFAFAF

Design tokens & code

CSS

--color: #40bddd;
/* rgb */ color: rgb(64, 189, 221);
/* oklch */ color: oklch(74.3% 0.116 218.6);

Tailwind

colors: {
  custom: {
    50: '#89d1e7',
    500: '#40bddd',
    950: '#000000',
  },
}

SCSS

$custom: #40bddd;
$custom-light: #89d1e7;
$custom-dark: #000000;

JSON

{
  "hex": "#40bddd",
  "rgb": {
    "r": 64,
    "g": 189,
    "b": 221
  },
  "hsl": {
    "h": 192.229,
    "s": 69.778,
    "l": 55.882
  },
  "oklch": {
    "l": 0.74346,
    "c": 0.11598,
    "h": 218.6
  },
  "luminance": 0.42706
}

Semantic roles & 50–950 ramp

primary

#40BDDD

secondary

#DDA99C

accent

#5F3BED

background

#F9FCFE

surface

#F1F9FC

border

#CBD2D5

text

#0D1416

muted

#7E8284

Preview Lab

Preview with #40BDDD

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

Preview Lab → · Contrast checker → · Palette generator →