#40B0CF#40B0CF

#40B0CF is a light, moderate cyan. Relative luminance 0.366; OKLCH L 70.7% C 0.108 H 219.9°. Best body text is #000000 at 8.33:1 contrast (WCAG AA passes).

Color values

HEX	#40B0CF
RGB	rgb(64, 176, 207)
HSL	hsl(193, 60%, 53%)
HSV	hsv(193, 69%, 81%)
CMYK	cmyk(69.1%, 15%, 0%, 18.8%)
CIE-LAB	lab(67.01, -21.58, -24.91)
CIE-LCH	lch(67.01, 32.96, 229.10°)
OKLab	oklab(70.69% -0.0832 -0.0695)
OKLCH	oklch(70.69% 0.108 219.9)
XYZ	xyz(28.8975, 36.6424, 64.5691)
Luminance	0.3665 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#40B0CF #CF5F40

analogous

#40CFA6 #40B0CF #4068CF

triadic

#40B0CF #CF40B0 #B0CF40

tetradic

#40B0CF #A640CF #CF5F40 #68CF40

square

#40B0CF #A640CF #CF5F40 #68CF40

split-complementary

#40B0CF #CF4068 #CFA640

monochromatic

#1E6377 #2A8CA8 #40B0CF #71C4DB #A2D8E8

Accessibility & contrast

On white

2.52

#40B0CF on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

8.33

#40B0CF on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #40B0CF

8.33:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##40B0CF	#FFFFFF	#000000	##000000
##40B0CF	1.00	2.52	8.33	8.33
#FFFFFF	2.52	1.00	21.00	21.00
#000000	8.33	21.00	1.00	1.00
##000000	8.33	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#9DABD1

Deuteranopia (green-blind)

#899DCF

Tritanopia (blue-blind)

#00BABA

Achromatopsia (no color)

#A3A3A3

Design tokens & code

CSS

--color: #40b0cf;
/* rgb */ color: rgb(64, 176, 207);
/* oklch */ color: oklch(70.7% 0.108 219.9);

Tailwind

colors: {
  custom: {
    50: '#86c7dd',
    500: '#40b0cf',
    950: '#000000',
  },
}

SCSS

$custom: #40b0cf;
$custom-light: #86c7dd;
$custom-dark: #000000;

JSON

{
  "hex": "#40b0cf",
  "rgb": {
    "r": 64,
    "g": 176,
    "b": 207
  },
  "hsl": {
    "h": 193.007,
    "s": 59.833,
    "l": 53.137
  },
  "oklch": {
    "l": 0.70688,
    "c": 0.1084,
    "h": 219.9
  },
  "luminance": 0.36646
}

Semantic roles & 50–950 ramp

primary

#40B0CF

secondary

#D4A497

accent

#6745E3

background

#F8FCFD

surface

#F0F8FB

border

#CBD1D4

text

#0D1315

muted

#7D8283

Preview Lab

Preview with #40B0CF

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

Preview Lab → · Contrast checker → · Palette generator →