#40B0CD#40B0CD

#40B0CD is a light, moderate cyan. Relative luminance 0.365; OKLCH L 70.6% C 0.107 H 218.5°. Best body text is #000000 at 8.31:1 contrast (WCAG AA passes).

Color values

HEX	#40B0CD
RGB	rgb(64, 176, 205)
HSL	hsl(192, 59%, 53%)
HSV	hsv(192, 69%, 80%)
CMYK	cmyk(68.8%, 14.1%, 0%, 19.6%)
CIE-LAB	lab(66.93, -22.21, -23.92)
CIE-LCH	lch(66.93, 32.64, 227.12°)
OKLab	oklab(70.6% -0.0839 -0.0667)
OKLCH	oklch(70.6% 0.107 218.5)
XYZ	xyz(28.6546, 36.5452, 63.2895)
Luminance	0.3655 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#40B0CD #CD5D40

analogous

#40CDA3 #40B0CD #406ACD

triadic

#40B0CD #CD40B0 #B0CD40

tetradic

#40B0CD #A340CD #CD5D40 #6ACD40

square

#40B0CD #A340CD #CD5D40 #6ACD40

split-complementary

#40B0CD #CD406A #CDA340

monochromatic

#1E6374 #2B8CA5 #40B0CD #71C4DA #A1D8E6

Accessibility & contrast

On white

2.53

#40B0CD on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

8.31

#40B0CD on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #40B0CD

8.31:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##40B0CD	#FFFFFF	#000000	##000000
##40B0CD	1.00	2.53	8.31	8.31
#FFFFFF	2.53	1.00	21.00	21.00
#000000	8.31	21.00	1.00	1.00
##000000	8.31	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#9EABCF

Deuteranopia (green-blind)

#8A9DCD

Tritanopia (blue-blind)

#00BAB9

Achromatopsia (no color)

#A3A3A3

Design tokens & code

CSS

--color: #40b0cd;
/* rgb */ color: rgb(64, 176, 205);
/* oklch */ color: oklch(70.6% 0.107 218.5);

Tailwind

colors: {
  custom: {
    50: '#86c7dc',
    500: '#40b0cd',
    950: '#000000',
  },
}

SCSS

$custom: #40b0cd;
$custom-light: #86c7dc;
$custom-dark: #000000;

JSON

{
  "hex": "#40b0cd",
  "rgb": {
    "r": 64,
    "g": 176,
    "b": 205
  },
  "hsl": {
    "h": 192.34,
    "s": 58.506,
    "l": 52.745
  },
  "oklch": {
    "l": 0.70605,
    "c": 0.10721,
    "h": 218.5
  },
  "luminance": 0.36548
}

Semantic roles & 50–950 ramp

primary

#40B0CD

secondary

#D3A296

accent

#6646E2

background

#F8FCFD

surface

#F0F8FB

border

#CBD1D4

text

#0D1315

muted

#7D8283

Preview Lab

Preview with #40B0CD

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

Preview Lab → · Contrast checker → · Palette generator →