#40B0D5#40B0D5

#40B0D5 is a light, moderate cyan. Relative luminance 0.369; OKLCH L 70.9% C 0.112 H 223.9°. Best body text is #000000 at 8.39:1 contrast (WCAG AA passes).

Color values

HEX	#40B0D5
RGB	rgb(64, 176, 213)
HSL	hsl(195, 64%, 54%)
HSV	hsv(195, 70%, 84%)
CMYK	cmyk(70%, 17.4%, 0%, 16.5%)
CIE-LAB	lab(67.23, -19.68, -27.87)
CIE-LCH	lch(67.23, 34.12, 234.78°)
OKLab	oklab(70.94% -0.0809 -0.0779)
OKLCH	oklch(70.94% 0.112 223.9)
XYZ	xyz(29.6450, 36.9414, 68.5059)
Luminance	0.3695 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#40B0D5 #D56540

analogous

#40D5AF #40B0D5 #4066D5

triadic

#40B0D5 #D540B0 #B0D540

tetradic

#40B0D5 #AF40D5 #D56540 #66D540

square

#40B0D5 #AF40D5 #D56540 #66D540

split-complementary

#40B0D5 #D54066 #D5AF40

monochromatic

#1C667F #278FB1 #40B0D5 #72C5E0 #A4DAEB

Accessibility & contrast

On white

2.50

#40B0D5 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

8.39

#40B0D5 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #40B0D5

8.39:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##40B0D5	#FFFFFF	#000000	##000000
##40B0D5	1.00	2.50	8.39	8.39
#FFFFFF	2.50	1.00	21.00	21.00
#000000	8.39	21.00	1.00	1.00
##000000	8.39	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#9BACD7

Deuteranopia (green-blind)

#879DD5

Tritanopia (blue-blind)

#00BBBC

Achromatopsia (no color)

#A4A4A4

Design tokens & code

CSS

--color: #40b0d5;
/* rgb */ color: rgb(64, 176, 213);
/* oklch */ color: oklch(70.9% 0.112 223.9);

Tailwind

colors: {
  custom: {
    50: '#87c7e2',
    500: '#40b0d5',
    950: '#000000',
  },
}

SCSS

$custom: #40b0d5;
$custom-light: #87c7e2;
$custom-dark: #000000;

JSON

{
  "hex": "#40b0d5",
  "rgb": {
    "r": 64,
    "g": 176,
    "b": 213
  },
  "hsl": {
    "h": 194.899,
    "s": 63.948,
    "l": 54.314
  },
  "oklch": {
    "l": 0.70943,
    "c": 0.11234,
    "h": 223.9
  },
  "luminance": 0.36945
}

Semantic roles & 50–950 ramp

primary

#40B0D5

secondary

#D8A899

accent

#6A41E7

background

#F9FCFD

surface

#F1F8FB

border

#CBD1D4

text

#0D1315

muted

#7E8283

Preview Lab

Preview with #40B0D5

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

Preview Lab → · Contrast checker → · Palette generator →