#40ABD6#40ABD6

#40ABD6 is a light, moderate cyan. Relative luminance 0.351; OKLCH L 69.8% C 0.114 H 228.6°. Best body text is #000000 at 8.01:1 contrast (WCAG AA passes).

Color values

HEX	#40ABD6
RGB	rgb(64, 171, 214)
HSL	hsl(197, 65%, 55%)
HSV	hsv(197, 70%, 84%)
CMYK	cmyk(70.1%, 20.1%, 0%, 16.1%)
CIE-LAB	lab(65.80, -16.72, -30.63)
CIE-LCH	lch(65.80, 34.90, 241.37°)
OKLab	oklab(69.81% -0.0756 -0.0859)
OKLCH	oklch(69.81% 0.114 228.6)
XYZ	xyz(28.8100, 35.0676, 68.8557)
Luminance	0.3507 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#40ABD6 #D66B40

analogous

#40D6B6 #40ABD6 #4060D6

triadic

#40ABD6 #D640AB #ABD640

tetradic

#40ABD6 #B640D6 #D66B40 #60D640

square

#40ABD6 #B640D6 #D66B40 #60D640

split-complementary

#40ABD6 #D64060 #D6B640

monochromatic

#1B6380 #268AB2 #40ABD6 #72C1E1 #A5D7EC

Accessibility & contrast

On white

2.62

#40ABD6 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

8.01

#40ABD6 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #40ABD6

8.01:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##40ABD6	#FFFFFF	#000000	##000000
##40ABD6	1.00	2.62	8.01	8.01
#FFFFFF	2.62	1.00	21.00	21.00
#000000	8.01	21.00	1.00	1.00
##000000	8.01	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#95A8D8

Deuteranopia (green-blind)

#8099D5

Tritanopia (blue-blind)

#00B7B9

Achromatopsia (no color)

#A0A0A0

Design tokens & code

CSS

--color: #40abd6;
/* rgb */ color: rgb(64, 171, 214);
/* oklch */ color: oklch(69.8% 0.114 228.6);

Tailwind

colors: {
  custom: {
    50: '#87c4e2',
    500: '#40abd6',
    950: '#000000',
  },
}

SCSS

$custom: #40abd6;
$custom-light: #87c4e2;
$custom-dark: #000000;

JSON

{
  "hex": "#40abd6",
  "rgb": {
    "r": 64,
    "g": 171,
    "b": 214
  },
  "hsl": {
    "h": 197.2,
    "s": 64.655,
    "l": 54.51
  },
  "oklch": {
    "l": 0.69811,
    "c": 0.11439,
    "h": 228.6
  },
  "luminance": 0.35071
}

Semantic roles & 50–950 ramp

primary

#40ABD6

secondary

#D9AB99

accent

#7040E8

background

#F9FCFD

surface

#F1F8FB

border

#CBD1D4

text

#0D1215

muted

#7E8183

Preview Lab

Preview with #40ABD6

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

Preview Lab → · Contrast checker → · Palette generator →