#40B9CB#40B9CB

#40B9CB is a light, moderate teal. Relative luminance 0.401; OKLCH L 72.7% C 0.107 H 209.2°. Best body text is #000000 at 9.02:1 contrast (WCAG AA passes).

Color values

HEX	#40B9CB
RGB	rgb(64, 185, 203)
HSL	hsl(188, 57%, 52%)
HSV	hsv(188, 68%, 80%)
CMYK	cmyk(68.5%, 8.9%, 0%, 20.4%)
CIE-LAB	lab(69.54, -27.37, -18.85)
CIE-LCH	lch(69.54, 33.23, 214.56°)
OKLab	oklab(72.68% -0.0938 -0.0524)
OKLCH	oklch(72.68% 0.107 209.2)
XYZ	xyz(30.2382, 40.0963, 62.6341)
Luminance	0.4010 (WCAG relative)
Temperature	cool
Family	teal

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#40B9CB #CB5240

analogous

#40CB98 #40B9CB #4073CB

triadic

#40B9CB #CB40B9 #B9CB40

tetradic

#40B9CB #9840CB #CB5240 #73CB40

square

#40B9CB #9840CB #CB5240 #73CB40

split-complementary

#40B9CB #CB4073 #CB9840

monochromatic

#1F6772 #2C93A2 #40B9CB #70CBD8 #A0DCE5

Accessibility & contrast

On white

2.33

#40B9CB on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

9.02

#40B9CB on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #40B9CB

9.02:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##40B9CB	#FFFFFF	#000000	##000000
##40B9CB	1.00	2.33	9.02	9.02
#FFFFFF	2.33	1.00	21.00	21.00
#000000	9.02	21.00	1.00	1.00
##000000	9.02	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#A9B2CC

Deuteranopia (green-blind)

#95A4CB

Tritanopia (blue-blind)

#00C1BE

Achromatopsia (no color)

#AAAAAA

Design tokens & code

CSS

--color: #40b9cb;
/* rgb */ color: rgb(64, 185, 203);
/* oklch */ color: oklch(72.7% 0.107 209.2);

Tailwind

colors: {
  custom: {
    50: '#87ceda',
    500: '#40b9cb',
    950: '#000000',
  },
}

SCSS

$custom: #40b9cb;
$custom-light: #87ceda;
$custom-dark: #000000;

JSON

{
  "hex": "#40b9cb",
  "rgb": {
    "r": 64,
    "g": 185,
    "b": 203
  },
  "hsl": {
    "h": 187.77,
    "s": 57.202,
    "l": 52.353
  },
  "oklch": {
    "l": 0.72677,
    "c": 0.10743,
    "h": 209.2
  },
  "luminance": 0.401
}

Semantic roles & 50–950 ramp

primary

#40B9CB

secondary

#D29D95

accent

#5B47E0

background

#F9FCFD

surface

#F1F9FA

border

#CBD2D3

text

#0D1314

muted

#7E8283

Preview Lab

Preview with #40B9CB

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

Preview Lab → · Contrast checker → · Palette generator →