#40B2D1#40B2D1

#40B2D1 is a light, moderate cyan. Relative luminance 0.375; OKLCH L 71.2% C 0.109 H 219.6°. Best body text is #000000 at 8.51:1 contrast (WCAG AA passes).

Color values

HEX	#40B2D1
RGB	rgb(64, 178, 209)
HSL	hsl(193, 61%, 54%)
HSV	hsv(193, 69%, 82%)
CMYK	cmyk(69.4%, 14.8%, 0%, 18%)
CIE-LAB	lab(67.67, -21.98, -24.99)
CIE-LCH	lch(67.67, 33.29, 228.67°)
OKLab	oklab(71.25% -0.0844 -0.0697)
OKLCH	oklch(71.25% 0.109 219.6)
XYZ	xyz(29.5386, 37.5309, 65.9967)
Luminance	0.3753 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#40B2D1 #D15F40

analogous

#40D1A8 #40B2D1 #4069D1

triadic

#40B2D1 #D140B2 #B2D140

tetradic

#40B2D1 #A840D1 #D15F40 #69D140

square

#40B2D1 #A840D1 #D15F40 #69D140

split-complementary

#40B2D1 #D14069 #D1A840

monochromatic

#1D6679 #298FAB #40B2D1 #71C6DD #A3DAE9

Accessibility & contrast

On white

2.47

#40B2D1 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

8.51

#40B2D1 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #40B2D1

8.51:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##40B2D1	#FFFFFF	#000000	##000000
##40B2D1	1.00	2.47	8.51	8.51
#FFFFFF	2.47	1.00	21.00	21.00
#000000	8.51	21.00	1.00	1.00
##000000	8.51	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#9FADD3

Deuteranopia (green-blind)

#8B9ED1

Tritanopia (blue-blind)

#00BCBC

Achromatopsia (no color)

#A5A5A5

Design tokens & code

CSS

--color: #40b2d1;
/* rgb */ color: rgb(64, 178, 209);
/* oklch */ color: oklch(71.2% 0.109 219.6);

Tailwind

colors: {
  custom: {
    50: '#87c9df',
    500: '#40b2d1',
    950: '#000000',
  },
}

SCSS

$custom: #40b2d1;
$custom-light: #87c9df;
$custom-dark: #000000;

JSON

{
  "hex": "#40b2d1",
  "rgb": {
    "r": 64,
    "g": 178,
    "b": 209
  },
  "hsl": {
    "h": 192.828,
    "s": 61.181,
    "l": 53.529
  },
  "oklch": {
    "l": 0.71247,
    "c": 0.10949,
    "h": 219.6
  },
  "luminance": 0.37534
}

Semantic roles & 50–950 ramp

primary

#40B2D1

secondary

#D5A597

accent

#6644E4

background

#F9FCFD

surface

#F1F8FB

border

#CBD1D4

text

#0D1315

muted

#7E8283

Preview Lab

Preview with #40B2D1

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

Preview Lab → · Contrast checker → · Palette generator →