#40A1BF#40A1BF

#40A1BF is a light, moderate cyan. Relative luminance 0.303; OKLCH L 66.4% C 0.099 H 221.9°. Best body text is #000000 at 7.07:1 contrast (WCAG AA passes).

Color values

HEX	#40A1BF
RGB	rgb(64, 161, 191)
HSL	hsl(194, 50%, 50%)
HSV	hsv(194, 66%, 75%)
CMYK	cmyk(66.5%, 15.7%, 0%, 25.1%)
CIE-LAB	lab(61.95, -18.81, -23.78)
CIE-LCH	lch(61.95, 30.32, 231.66°)
OKLab	oklab(66.43% -0.074 -0.0663)
OKLCH	oklch(66.43% 0.099 221.9)
XYZ	xyz(24.2594, 30.3387, 53.8576)
Luminance	0.3034 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#40A1BF #BF5E40

analogous

#40BF9D #40A1BF #4062BF

triadic

#40A1BF #BF40A1 #A1BF40

tetradic

#40A1BF #9D40BF #BF5E40 #62BF40

square

#40A1BF #9D40BF #BF5E40 #62BF40

split-complementary

#40A1BF #BF4062 #BF9D40

monochromatic

#215463 #317A91 #40A1BF #6EB8CE #9CCEDE

Accessibility & contrast

On white

2.97

#40A1BF on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

7.07

#40A1BF on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #40A1BF

7.07:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##40A1BF	#FFFFFF	#000000	##000000
##40A1BF	1.00	2.97	7.07	7.07
#FFFFFF	2.97	1.00	21.00	21.00
#000000	7.07	21.00	1.00	1.00
##000000	7.07	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#8F9DC1

Deuteranopia (green-blind)

#7D90BF

Tritanopia (blue-blind)

#00ABAB

Achromatopsia (no color)

#969696

Design tokens & code

CSS

--color: #40a1bf;
/* rgb */ color: rgb(64, 161, 191);
/* oklch */ color: oklch(66.4% 0.099 221.9);

Tailwind

colors: {
  custom: {
    50: '#83bdd2',
    500: '#40a1bf',
    950: '#000000',
  },
}

SCSS

$custom: #40a1bf;
$custom-light: #83bdd2;
$custom-dark: #000000;

JSON

{
  "hex": "#40a1bf",
  "rgb": {
    "r": 64,
    "g": 161,
    "b": 191
  },
  "hsl": {
    "h": 194.173,
    "s": 49.804,
    "l": 50
  },
  "oklch": {
    "l": 0.66432,
    "c": 0.09941,
    "h": 221.9
  },
  "luminance": 0.30341
}

Semantic roles & 50–950 ramp

primary

#40A1BF

secondary

#CA9E91

accent

#6F4ED9

background

#F8FBFC

surface

#F0F6F9

border

#CBD0D2

text

#0C1214

muted

#7D8182

Preview Lab

Preview with #40A1BF

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

Preview Lab → · Contrast checker → · Palette generator →