#40B5D2#40B5D2

#40B5D2 is a light, moderate cyan. Relative luminance 0.388; OKLCH L 72.0% C 0.110 H 217.7°. Best body text is #000000 at 8.76:1 contrast (WCAG AA passes).

Color values

HEX	#40B5D2
RGB	rgb(64, 181, 210)
HSL	hsl(192, 62%, 54%)
HSV	hsv(192, 70%, 82%)
CMYK	cmyk(69.5%, 13.8%, 0%, 17.6%)
CIE-LAB	lab(68.60, -23.21, -24.13)
CIE-LCH	lch(68.60, 33.48, 226.12°)
OKLab	oklab(72% -0.087 -0.0673)
OKLCH	oklch(72% 0.11 217.7)
XYZ	xyz(30.2662, 38.7874, 66.8519)
Luminance	0.3879 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#40B5D2 #D25D40

analogous

#40D2A6 #40B5D2 #406CD2

triadic

#40B5D2 #D240B5 #B5D240

tetradic

#40B5D2 #A640D2 #D25D40 #6CD240

square

#40B5D2 #A640D2 #D25D40 #6CD240

split-complementary

#40B5D2 #D2406C #D2A640

monochromatic

#1D687B #2992AC #40B5D2 #72C8DE #A3DBE9

Accessibility & contrast

On white

2.40

#40B5D2 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

8.76

#40B5D2 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #40B5D2

8.76:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##40B5D2	#FFFFFF	#000000	##000000
##40B5D2	1.00	2.40	8.76	8.76
#FFFFFF	2.40	1.00	21.00	21.00
#000000	8.76	21.00	1.00	1.00
##000000	8.76	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#A2B0D4

Deuteranopia (green-blind)

#8EA1D2

Tritanopia (blue-blind)

#00BFBE

Achromatopsia (no color)

#A7A7A7

Design tokens & code

CSS

--color: #40b5d2;
/* rgb */ color: rgb(64, 181, 210);
/* oklch */ color: oklch(72.0% 0.110 217.7);

Tailwind

colors: {
  custom: {
    50: '#87cbdf',
    500: '#40b5d2',
    950: '#000000',
  },
}

SCSS

$custom: #40b5d2;
$custom-light: #87cbdf;
$custom-dark: #000000;

JSON

{
  "hex": "#40b5d2",
  "rgb": {
    "r": 64,
    "g": 181,
    "b": 210
  },
  "hsl": {
    "h": 191.918,
    "s": 61.864,
    "l": 53.725
  },
  "oklch": {
    "l": 0.72,
    "c": 0.10998,
    "h": 217.7
  },
  "luminance": 0.38791
}

Semantic roles & 50–950 ramp

primary

#40B5D2

secondary

#D6A498

accent

#6343E5

background

#F9FCFD

surface

#F1F8FB

border

#CBD1D4

text

#0D1315

muted

#7E8283

Preview Lab

Preview with #40B5D2

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

Preview Lab → · Contrast checker → · Palette generator →