#40B0D2#40B0D2

#40B0D2 is a light, moderate cyan. Relative luminance 0.368; OKLCH L 70.8% C 0.110 H 222.0°. Best body text is #000000 at 8.36:1 contrast (WCAG AA passes).

Color values

HEX	#40B0D2
RGB	rgb(64, 176, 210)
HSL	hsl(194, 62%, 54%)
HSV	hsv(194, 70%, 82%)
CMYK	cmyk(69.5%, 16.2%, 0%, 17.6%)
CIE-LAB	lab(67.12, -20.63, -26.39)
CIE-LCH	lch(67.12, 33.50, 231.98°)
OKLab	oklab(70.82% -0.082 -0.0737)
OKLCH	oklch(70.82% 0.11 222)
XYZ	xyz(29.2678, 36.7905, 66.5191)
Luminance	0.3679 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#40B0D2 #D26240

analogous

#40D2AB #40B0D2 #4067D2

triadic

#40B0D2 #D240B0 #B0D240

tetradic

#40B0D2 #AB40D2 #D26240 #67D240

square

#40B0D2 #AB40D2 #D26240 #67D240

split-complementary

#40B0D2 #D24067 #D2AB40

monochromatic

#1D657B #298EAC #40B0D2 #72C4DE #A3D9E9

Accessibility & contrast

On white

2.51

#40B0D2 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

8.36

#40B0D2 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #40B0D2

8.36:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##40B0D2	#FFFFFF	#000000	##000000
##40B0D2	1.00	2.51	8.36	8.36
#FFFFFF	2.51	1.00	21.00	21.00
#000000	8.36	21.00	1.00	1.00
##000000	8.36	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#9CACD4

Deuteranopia (green-blind)

#889DD2

Tritanopia (blue-blind)

#00BBBB

Achromatopsia (no color)

#A3A3A3

Design tokens & code

CSS

--color: #40b0d2;
/* rgb */ color: rgb(64, 176, 210);
/* oklch */ color: oklch(70.8% 0.110 222.0);

Tailwind

colors: {
  custom: {
    50: '#87c7e0',
    500: '#40b0d2',
    950: '#000000',
  },
}

SCSS

$custom: #40b0d2;
$custom-light: #87c7e0;
$custom-dark: #000000;

JSON

{
  "hex": "#40b0d2",
  "rgb": {
    "r": 64,
    "g": 176,
    "b": 210
  },
  "hsl": {
    "h": 193.973,
    "s": 61.864,
    "l": 53.725
  },
  "oklch": {
    "l": 0.70815,
    "c": 0.11029,
    "h": 222
  },
  "luminance": 0.36794
}

Semantic roles & 50–950 ramp

primary

#40B0D2

secondary

#D6A698

accent

#6943E5

background

#F9FCFD

surface

#F1F8FB

border

#CBD1D4

text

#0D1315

muted

#7E8283

Preview Lab

Preview with #40B0D2

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

Preview Lab → · Contrast checker → · Palette generator →