#40B0D3#40B0D3

#40B0D3 is a light, moderate cyan. Relative luminance 0.368; OKLCH L 70.9% C 0.111 H 222.6°. Best body text is #000000 at 8.37:1 contrast (WCAG AA passes).

Color values

HEX	#40B0D3
RGB	rgb(64, 176, 211)
HSL	hsl(194, 63%, 54%)
HSV	hsv(194, 70%, 83%)
CMYK	cmyk(69.7%, 16.6%, 0%, 17.3%)
CIE-LAB	lab(67.16, -20.32, -26.89)
CIE-LCH	lch(67.16, 33.70, 232.92°)
OKLab	oklab(70.86% -0.0816 -0.0751)
OKLCH	oklch(70.86% 0.111 222.6)
XYZ	xyz(29.3927, 36.8405, 67.1772)
Luminance	0.3684 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#40B0D3 #D36340

analogous

#40D3AD #40B0D3 #4067D3

triadic

#40B0D3 #D340B0 #B0D340

tetradic

#40B0D3 #AD40D3 #D36340 #67D340

square

#40B0D3 #AD40D3 #D36340 #67D340

split-complementary

#40B0D3 #D34067 #D3AD40

monochromatic

#1D657C #288EAE #40B0D3 #72C5DE #A3D9EA

Accessibility & contrast

On white

2.51

#40B0D3 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

8.37

#40B0D3 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #40B0D3

8.37:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##40B0D3	#FFFFFF	#000000	##000000
##40B0D3	1.00	2.51	8.37	8.37
#FFFFFF	2.51	1.00	21.00	21.00
#000000	8.37	21.00	1.00	1.00
##000000	8.37	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#9CACD5

Deuteranopia (green-blind)

#879DD3

Tritanopia (blue-blind)

#00BBBB

Achromatopsia (no color)

#A3A3A3

Design tokens & code

CSS

--color: #40b0d3;
/* rgb */ color: rgb(64, 176, 211);
/* oklch */ color: oklch(70.9% 0.111 222.6);

Tailwind

colors: {
  custom: {
    50: '#87c7e0',
    500: '#40b0d3',
    950: '#000000',
  },
}

SCSS

$custom: #40b0d3;
$custom-light: #87c7e0;
$custom-dark: #000000;

JSON

{
  "hex": "#40b0d3",
  "rgb": {
    "r": 64,
    "g": 176,
    "b": 211
  },
  "hsl": {
    "h": 194.286,
    "s": 62.553,
    "l": 53.922
  },
  "oklch": {
    "l": 0.70857,
    "c": 0.11096,
    "h": 222.6
  },
  "luminance": 0.36844
}

Semantic roles & 50–950 ramp

primary

#40B0D3

secondary

#D7A798

accent

#6942E6

background

#F9FCFD

surface

#F1F8FB

border

#CBD1D4

text

#0D1315

muted

#7E8283

Preview Lab

Preview with #40B0D3

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

Preview Lab → · Contrast checker → · Palette generator →