#40B8CB#40B8CB

#40B8CB is a light, moderate teal. Relative luminance 0.397; OKLCH L 72.4% C 0.107 H 210.0°. Best body text is #000000 at 8.94:1 contrast (WCAG AA passes).

Color values

HEX	#40B8CB
RGB	rgb(64, 184, 203)
HSL	hsl(188, 57%, 52%)
HSV	hsv(188, 68%, 80%)
CMYK	cmyk(68.5%, 9.4%, 0%, 20.4%)
CIE-LAB	lab(69.24, -26.87, -19.31)
CIE-LCH	lch(69.24, 33.09, 215.70°)
OKLab	oklab(72.44% -0.0928 -0.0537)
OKLCH	oklch(72.44% 0.107 210)
XYZ	xyz(30.0297, 39.6794, 62.5646)
Luminance	0.3968 (WCAG relative)
Temperature	cool
Family	teal

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#40B8CB #CB5340

analogous

#40CB98 #40B8CB #4073CB

triadic

#40B8CB #CB40B8 #B8CB40

tetradic

#40B8CB #9840CB #CB5340 #73CB40

square

#40B8CB #9840CB #CB5340 #73CB40

split-complementary

#40B8CB #CB4073 #CB9840

monochromatic

#1F6672 #2C92A2 #40B8CB #70CAD8 #A0DCE5

Accessibility & contrast

On white

2.35

#40B8CB on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

8.94

#40B8CB on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #40B8CB

8.94:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##40B8CB	#FFFFFF	#000000	##000000
##40B8CB	1.00	2.35	8.94	8.94
#FFFFFF	2.35	1.00	21.00	21.00
#000000	8.94	21.00	1.00	1.00
##000000	8.94	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#A8B1CC

Deuteranopia (green-blind)

#94A3CB

Tritanopia (blue-blind)

#00C1BE

Achromatopsia (no color)

#A9A9A9

Design tokens & code

CSS

--color: #40b8cb;
/* rgb */ color: rgb(64, 184, 203);
/* oklch */ color: oklch(72.4% 0.107 210.0);

Tailwind

colors: {
  custom: {
    50: '#87cdda',
    500: '#40b8cb',
    950: '#000000',
  },
}

SCSS

$custom: #40b8cb;
$custom-light: #87cdda;
$custom-dark: #000000;

JSON

{
  "hex": "#40b8cb",
  "rgb": {
    "r": 64,
    "g": 184,
    "b": 203
  },
  "hsl": {
    "h": 188.201,
    "s": 57.202,
    "l": 52.353
  },
  "oklch": {
    "l": 0.72437,
    "c": 0.10719,
    "h": 210
  },
  "luminance": 0.39683
}

Semantic roles & 50–950 ramp

primary

#40B8CB

secondary

#D29D95

accent

#5C47E0

background

#F8FCFD

surface

#F0F9FA

border

#CBD2D3

text

#0D1315

muted

#7D8283

Preview Lab

Preview with #40B8CB

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

Preview Lab → · Contrast checker → · Palette generator →