#40A8BF#40A8BF

#40A8BF is a light, moderate cyan. Relative luminance 0.329; OKLCH L 68.1% C 0.099 H 215.1°. Best body text is #000000 at 7.57:1 contrast (WCAG AA passes).

Color values

HEX	#40A8BF
RGB	rgb(64, 168, 191)
HSL	hsl(191, 50%, 50%)
HSV	hsv(191, 66%, 75%)
CMYK	cmyk(66.5%, 12%, 0%, 25.1%)
CIE-LAB	lab(64.04, -22.46, -20.58)
CIE-LCH	lch(64.04, 30.46, 222.50°)
OKLab	oklab(68.11% -0.0813 -0.0572)
OKLCH	oklch(68.11% 0.099 215.1)
XYZ	xyz(25.5171, 32.8540, 54.2768)
Luminance	0.3286 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#40A8BF #BF5740

analogous

#40BF96 #40A8BF #4069BF

triadic

#40A8BF #BF40A8 #A8BF40

tetradic

#40A8BF #9640BF #BF5740 #69BF40

square

#40A8BF #9640BF #BF5740 #69BF40

split-complementary

#40A8BF #BF4069 #BF9640

monochromatic

#215763 #318091 #40A8BF #6EBDCE #9CD2DE

Accessibility & contrast

On white

2.77

#40A8BF on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

7.57

#40A8BF on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #40A8BF

7.57:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##40A8BF	#FFFFFF	#000000	##000000
##40A8BF	1.00	2.77	7.57	7.57
#FFFFFF	2.77	1.00	21.00	21.00
#000000	7.57	21.00	1.00	1.00
##000000	7.57	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#98A3C0

Deuteranopia (green-blind)

#8695BF

Tritanopia (blue-blind)

#00B1AF

Achromatopsia (no color)

#9B9B9B

Design tokens & code

CSS

--color: #40a8bf;
/* rgb */ color: rgb(64, 168, 191);
/* oklch */ color: oklch(68.1% 0.099 215.1);

Tailwind

colors: {
  custom: {
    50: '#84c2d2',
    500: '#40a8bf',
    950: '#000000',
  },
}

SCSS

$custom: #40a8bf;
$custom-light: #84c2d2;
$custom-dark: #000000;

JSON

{
  "hex": "#40a8bf",
  "rgb": {
    "r": 64,
    "g": 168,
    "b": 191
  },
  "hsl": {
    "h": 190.866,
    "s": 49.804,
    "l": 50
  },
  "oklch": {
    "l": 0.68114,
    "c": 0.09943,
    "h": 215.1
  },
  "luminance": 0.32857
}

Semantic roles & 50–950 ramp

primary

#40A8BF

secondary

#CA9B91

accent

#684ED9

background

#F8FBFC

surface

#F0F7F9

border

#CBD0D2

text

#0C1214

muted

#7D8182

Preview Lab

Preview with #40A8BF

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

Preview Lab → · Contrast checker → · Palette generator →