#40B6DF#40B6DF

#40B6DF is a light, moderate cyan. Relative luminance 0.399; OKLCH L 72.8% C 0.118 H 225.4°. Best body text is #000000 at 8.97:1 contrast (WCAG AA passes).

Color values

HEX	#40B6DF
RGB	rgb(64, 182, 223)
HSL	hsl(195, 71%, 56%)
HSV	hsv(195, 71%, 87%)
CMYK	cmyk(71.3%, 18.4%, 0%, 12.5%)
CIE-LAB	lab(69.38, -19.60, -30.05)
CIE-LCH	lch(69.38, 35.88, 236.88°)
OKLab	oklab(72.79% -0.0831 -0.0841)
OKLCH	oklch(72.79% 0.118 225.4)
XYZ	xyz(32.1561, 39.8699, 75.7987)
Luminance	0.3987 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#40B6DF #DF6940

analogous

#40DFB9 #40B6DF #4067DF

triadic

#40B6DF #DF40B6 #B6DF40

tetradic

#40B6DF #B940DF #DF6940 #67DF40

square

#40B6DF #B940DF #DF6940 #67DF40

split-complementary

#40B6DF #DF4067 #DFB940

monochromatic

#186F8D #2098C1 #40B6DF #74CAE8 #A9DEF1

Accessibility & contrast

On white

2.34

#40B6DF on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

8.97

#40B6DF on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #40B6DF

8.97:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##40B6DF	#FFFFFF	#000000	##000000
##40B6DF	1.00	2.34	8.97	8.97
#FFFFFF	2.34	1.00	21.00	21.00
#000000	8.97	21.00	1.00	1.00
##000000	8.97	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#9FB2E1

Deuteranopia (green-blind)

#8AA3DF

Tritanopia (blue-blind)

#00C2C3

Achromatopsia (no color)

#A9A9A9

Design tokens & code

CSS

--color: #40b6df;
/* rgb */ color: rgb(64, 182, 223);
/* oklch */ color: oklch(72.8% 0.118 225.4);

Tailwind

colors: {
  custom: {
    50: '#89cce9',
    500: '#40b6df',
    950: '#000000',
  },
}

SCSS

$custom: #40b6df;
$custom-light: #89cce9;
$custom-dark: #000000;

JSON

{
  "hex": "#40b6df",
  "rgb": {
    "r": 64,
    "g": 182,
    "b": 223
  },
  "hsl": {
    "h": 195.472,
    "s": 71.3,
    "l": 56.275
  },
  "oklch": {
    "l": 0.72787,
    "c": 0.11825,
    "h": 225.4
  },
  "luminance": 0.39874
}

Semantic roles & 50–950 ramp

primary

#40B6DF

secondary

#DEAE9D

accent

#683AEE

background

#F9FCFE

surface

#F1F8FC

border

#CBD1D5

text

#0D1316

muted

#7E8284

Preview Lab

Preview with #40B6DF

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

Preview Lab → · Contrast checker → · Palette generator →