#40B1B3#40B1B3

#40B1B3 is a light, moderate teal. Relative luminance 0.358; OKLCH L 69.8% C 0.100 H 196.8°. Best body text is #000000 at 8.16:1 contrast (WCAG AA passes).

Color values

HEX	#40B1B3
RGB	rgb(64, 177, 179)
HSL	hsl(181, 47%, 48%)
HSV	hsv(181, 64%, 70%)
CMYK	cmyk(64.2%, 1.1%, 0%, 29.8%)
CIE-LAB	lab(66.36, -30.54, -10.41)
CIE-LCH	lch(66.36, 32.26, 198.82°)
OKLab	oklab(69.85% -0.0957 -0.0289)
OKLCH	oklch(69.85% 0.1 196.8)
XYZ	xyz(25.9696, 35.7861, 48.1778)
Luminance	0.3579 (WCAG relative)
Temperature	cool
Family	teal

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#40B1B3 #B34240

analogous

#40B37B #40B1B3 #4078B3

triadic

#40B1B3 #B340B1 #B1B340

tetradic

#40B1B3 #7B40B3 #B34240 #78B340

square

#40B1B3 #7B40B3 #B34240 #78B340

split-complementary

#40B1B3 #B34078 #B37B40

monochromatic

#205859 #308486 #40B1B3 #67C7C9 #94D8D9

Accessibility & contrast

On white

2.57

#40B1B3 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

8.16

#40B1B3 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #40B1B3

8.16:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##40B1B3	#FFFFFF	#000000	##000000
##40B1B3	1.00	2.57	8.16	8.16
#FFFFFF	2.57	1.00	21.00	21.00
#000000	8.16	21.00	1.00	1.00
##000000	8.16	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#A5A9B3

Deuteranopia (green-blind)

#949CB4

Tritanopia (blue-blind)

#00B7B1

Achromatopsia (no color)

#A1A1A1

Design tokens & code

CSS

--color: #40b1b3;
/* rgb */ color: rgb(64, 177, 179);
/* oklch */ color: oklch(69.8% 0.100 196.8);

Tailwind

colors: {
  custom: {
    50: '#84c8c9',
    500: '#40b1b3',
    950: '#000000',
  },
}

SCSS

$custom: #40b1b3;
$custom-light: #84c8c9;
$custom-dark: #000000;

JSON

{
  "hex": "#40b1b3",
  "rgb": {
    "r": 64,
    "g": 177,
    "b": 179
  },
  "hsl": {
    "h": 181.043,
    "s": 47.325,
    "l": 47.647
  },
  "oklch": {
    "l": 0.69848,
    "c": 0.09997,
    "h": 196.8
  },
  "luminance": 0.35789
}

Semantic roles & 50–950 ramp

primary

#40B1B3

secondary

#C48B8A

accent

#5351D7

background

#F8FCFC

surface

#F0F8F8

border

#CBD1D1

text

#0C1313

muted

#7D8282

Preview Lab

Preview with #40B1B3

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

Preview Lab → · Contrast checker → · Palette generator →