#40C2E3#40C2E3

#40C2E3 is a light, moderate cyan. Relative luminance 0.452; OKLCH L 75.8% C 0.119 H 218.6°. Best body text is #000000 at 10.04:1 contrast (WCAG AA passes).

Color values

HEX	#40C2E3
RGB	rgb(64, 194, 227)
HSL	hsl(192, 74%, 57%)
HSV	hsv(192, 72%, 89%)
CMYK	cmyk(71.8%, 14.5%, 0%, 11%)
CIE-LAB	lab(73.03, -24.48, -26.61)
CIE-LCH	lch(73.03, 36.16, 227.39°)
OKLab	oklab(75.77% -0.0932 -0.0743)
OKLCH	oklch(75.77% 0.119 218.6)
XYZ	xyz(35.2655, 45.2155, 79.5270)
Luminance	0.4522 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#40C2E3 #E36140

analogous

#40E3B2 #40C2E3 #4071E3

triadic

#40C2E3 #E340C2 #C2E340

tetradic

#40C2E3 #B240E3 #E36140 #71E340

square

#40C2E3 #B240E3 #E36140 #71E340

split-complementary

#40C2E3 #E34071 #E3B240

monochromatic

#167A93 #1DA6C8 #40C2E3 #75D3EB #ABE4F3

Accessibility & contrast

On white

2.09

#40C2E3 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

10.04

#40C2E3 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #40C2E3

10.04:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##40C2E3	#FFFFFF	#000000	##000000
##40C2E3	1.00	2.09	10.04	10.04
#FFFFFF	2.09	1.00	21.00	21.00
#000000	10.04	21.00	1.00	1.00
##000000	10.04	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#ADBDE5

Deuteranopia (green-blind)

#97ACE3

Tritanopia (blue-blind)

#00CDCC

Achromatopsia (no color)

#B3B3B3

Design tokens & code

CSS

--color: #40c2e3;
/* rgb */ color: rgb(64, 194, 227);
/* oklch */ color: oklch(75.8% 0.119 218.6);

Tailwind

colors: {
  custom: {
    50: '#8ad4eb',
    500: '#40c2e3',
    950: '#000000',
  },
}

SCSS

$custom: #40c2e3;
$custom-light: #8ad4eb;
$custom-dark: #000000;

JSON

{
  "hex": "#40c2e3",
  "rgb": {
    "r": 64,
    "g": 194,
    "b": 227
  },
  "hsl": {
    "h": 192.147,
    "s": 74.429,
    "l": 57.059
  },
  "oklch": {
    "l": 0.75769,
    "c": 0.11917,
    "h": 218.6
  },
  "luminance": 0.4522
}

Semantic roles & 50–950 ramp

primary

#40C2E3

secondary

#E1AC9E

accent

#5C37F1

background

#F9FDFE

surface

#F2FAFD

border

#CCD3D5

text

#0D1416

muted

#7E8384

Preview Lab

Preview with #40C2E3

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

Preview Lab → · Contrast checker → · Palette generator →