#40AFCB#40AFCB

#40AFCB is a light, moderate cyan. Relative luminance 0.361; OKLCH L 70.3% C 0.106 H 217.9°. Best body text is #000000 at 8.21:1 contrast (WCAG AA passes).

Color values

HEX	#40AFCB
RGB	rgb(64, 175, 203)
HSL	hsl(192, 57%, 52%)
HSV	hsv(192, 68%, 80%)
CMYK	cmyk(68.5%, 13.8%, 0%, 20.4%)
CIE-LAB	lab(66.56, -22.32, -23.38)
CIE-LCH	lch(66.56, 32.33, 226.33°)
OKLab	oklab(70.28% -0.0837 -0.0652)
OKLCH	oklch(70.28% 0.106 217.9)
XYZ	xyz(28.2193, 36.0586, 61.9611)
Luminance	0.3606 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#40AFCB #CB5C40

analogous

#40CBA1 #40AFCB #406ACB

triadic

#40AFCB #CB40AF #AFCB40

tetradic

#40AFCB #A140CB #CB5C40 #6ACB40

square

#40AFCB #A140CB #CB5C40 #6ACB40

split-complementary

#40AFCB #CB406A #CBA140

monochromatic

#1F6172 #2C8AA2 #40AFCB #70C3D8 #A0D7E5

Accessibility & contrast

On white

2.56

#40AFCB on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

8.21

#40AFCB on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #40AFCB

8.21:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##40AFCB	#FFFFFF	#000000	##000000
##40AFCB	1.00	2.56	8.21	8.21
#FFFFFF	2.56	1.00	21.00	21.00
#000000	8.21	21.00	1.00	1.00
##000000	8.21	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#9DAACD

Deuteranopia (green-blind)

#899CCB

Tritanopia (blue-blind)

#00B9B8

Achromatopsia (no color)

#A2A2A2

Design tokens & code

CSS

--color: #40afcb;
/* rgb */ color: rgb(64, 175, 203);
/* oklch */ color: oklch(70.3% 0.106 217.9);

Tailwind

colors: {
  custom: {
    50: '#86c7db',
    500: '#40afcb',
    950: '#000000',
  },
}

SCSS

$custom: #40afcb;
$custom-light: #86c7db;
$custom-dark: #000000;

JSON

{
  "hex": "#40afcb",
  "rgb": {
    "r": 64,
    "g": 175,
    "b": 203
  },
  "hsl": {
    "h": 192.086,
    "s": 57.202,
    "l": 52.353
  },
  "oklch": {
    "l": 0.70284,
    "c": 0.10609,
    "h": 217.9
  },
  "luminance": 0.36062
}

Semantic roles & 50–950 ramp

primary

#40AFCB

secondary

#D2A195

accent

#6647E0

background

#F8FCFD

surface

#F0F8FA

border

#CBD1D3

text

#0C1315

muted

#7D8283

Preview Lab

Preview with #40AFCB

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

Preview Lab → · Contrast checker → · Palette generator →