#40B1CC#40B1CC

#40B1CC is a light, moderate cyan. Relative luminance 0.369; OKLCH L 70.8% C 0.107 H 216.9°. Best body text is #000000 at 8.38:1 contrast (WCAG AA passes).

Color values

HEX	#40B1CC
RGB	rgb(64, 177, 204)
HSL	hsl(192, 58%, 53%)
HSV	hsv(192, 69%, 80%)
CMYK	cmyk(68.6%, 13.2%, 0%, 20%)
CIE-LAB	lab(67.19, -23.04, -22.97)
CIE-LCH	lch(67.19, 32.53, 224.92°)
OKLab	oklab(70.8% -0.0853 -0.064)
OKLCH	oklch(70.8% 0.107 216.9)
XYZ	xyz(28.7310, 36.8907, 62.7214)
Luminance	0.3689 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#40B1CC #CC5B40

analogous

#40CCA1 #40B1CC #406BCC

triadic

#40B1CC #CC40B1 #B1CC40

tetradic

#40B1CC #A140CC #CC5B40 #6BCC40

square

#40B1CC #A140CC #CC5B40 #6BCC40

split-complementary

#40B1CC #CC406B #CCA140

monochromatic

#1F6373 #2C8CA3 #40B1CC #70C5D9 #A1D8E6

Accessibility & contrast

On white

2.51

#40B1CC on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

8.38

#40B1CC on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #40B1CC

8.38:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##40B1CC	#FFFFFF	#000000	##000000
##40B1CC	1.00	2.51	8.38	8.38
#FFFFFF	2.51	1.00	21.00	21.00
#000000	8.38	21.00	1.00	1.00
##000000	8.38	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#9FACCE

Deuteranopia (green-blind)

#8B9DCC

Tritanopia (blue-blind)

#00BBB9

Achromatopsia (no color)

#A4A4A4

Design tokens & code

CSS

--color: #40b1cc;
/* rgb */ color: rgb(64, 177, 204);
/* oklch */ color: oklch(70.8% 0.107 216.9);

Tailwind

colors: {
  custom: {
    50: '#86c8db',
    500: '#40b1cc',
    950: '#000000',
  },
}

SCSS

$custom: #40b1cc;
$custom-light: #86c8db;
$custom-dark: #000000;

JSON

{
  "hex": "#40b1cc",
  "rgb": {
    "r": 64,
    "g": 177,
    "b": 204
  },
  "hsl": {
    "h": 191.571,
    "s": 57.851,
    "l": 52.549
  },
  "oklch": {
    "l": 0.70802,
    "c": 0.10668,
    "h": 216.9
  },
  "luminance": 0.36894
}

Semantic roles & 50–950 ramp

primary

#40B1CC

secondary

#D2A195

accent

#6447E1

background

#F8FCFD

surface

#F0F8FB

border

#CBD1D4

text

#0D1315

muted

#7D8283

Preview Lab

Preview with #40B1CC

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

Preview Lab → · Contrast checker → · Palette generator →