#40B1D3#40B1D3

#40B1D3 is a light, moderate cyan. Relative luminance 0.372; OKLCH L 71.1% C 0.111 H 221.8°. Best body text is #000000 at 8.45:1 contrast (WCAG AA passes).

Color values

HEX	#40B1D3
RGB	rgb(64, 177, 211)
HSL	hsl(194, 63%, 54%)
HSV	hsv(194, 70%, 83%)
CMYK	cmyk(69.7%, 16.1%, 0%, 17.3%)
CIE-LAB	lab(67.45, -20.84, -26.43)
CIE-LCH	lch(67.45, 33.66, 231.75°)
OKLab	oklab(71.09% -0.0826 -0.0738)
OKLCH	oklch(71.09% 0.111 221.8)
XYZ	xyz(29.5895, 37.2341, 67.2428)
Luminance	0.3724 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#40B1D3 #D36240

analogous

#40D3AC #40B1D3 #4068D3

triadic

#40B1D3 #D340B1 #B1D340

tetradic

#40B1D3 #AC40D3 #D36240 #68D340

square

#40B1D3 #AC40D3 #D36240 #68D340

split-complementary

#40B1D3 #D34068 #D3AC40

monochromatic

#1D667C #288FAE #40B1D3 #72C5DE #A3DAEA

Accessibility & contrast

On white

2.49

#40B1D3 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

8.45

#40B1D3 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #40B1D3

8.45:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##40B1D3	#FFFFFF	#000000	##000000
##40B1D3	1.00	2.49	8.45	8.45
#FFFFFF	2.49	1.00	21.00	21.00
#000000	8.45	21.00	1.00	1.00
##000000	8.45	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#9DADD5

Deuteranopia (green-blind)

#899ED3

Tritanopia (blue-blind)

#00BCBC

Achromatopsia (no color)

#A4A4A4

Design tokens & code

CSS

--color: #40b1d3;
/* rgb */ color: rgb(64, 177, 211);
/* oklch */ color: oklch(71.1% 0.111 221.8);

Tailwind

colors: {
  custom: {
    50: '#87c8e0',
    500: '#40b1d3',
    950: '#000000',
  },
}

SCSS

$custom: #40b1d3;
$custom-light: #87c8e0;
$custom-dark: #000000;

JSON

{
  "hex": "#40b1d3",
  "rgb": {
    "r": 64,
    "g": 177,
    "b": 211
  },
  "hsl": {
    "h": 193.878,
    "s": 62.553,
    "l": 53.922
  },
  "oklch": {
    "l": 0.71094,
    "c": 0.11082,
    "h": 221.8
  },
  "luminance": 0.37237
}

Semantic roles & 50–950 ramp

primary

#40B1D3

secondary

#D7A798

accent

#6842E6

background

#F9FCFD

surface

#F1F8FB

border

#CBD1D4

text

#0D1315

muted

#7E8283

Preview Lab

Preview with #40B1D3

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

Preview Lab → · Contrast checker → · Palette generator →