#40BCE3#40BCE3

#40BCE3 is a light, moderate cyan. Relative luminance 0.426; OKLCH L 74.4% C 0.120 H 223.2°. Best body text is #000000 at 9.52:1 contrast (WCAG AA passes).

Color values

HEX	#40BCE3
RGB	rgb(64, 188, 227)
HSL	hsl(194, 74%, 57%)
HSV	hsv(194, 72%, 89%)
CMYK	cmyk(71.8%, 17.2%, 0%, 11%)
CIE-LAB	lab(71.28, -21.43, -29.30)
CIE-LCH	lch(71.28, 36.30, 233.82°)
OKLab	oklab(74.36% -0.0874 -0.082)
OKLCH	oklch(74.36% 0.12 223.2)
XYZ	xyz(33.9570, 42.5985, 79.0908)
Luminance	0.4260 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#40BCE3 #E36740

analogous

#40E3B9 #40BCE3 #406BE3

triadic

#40BCE3 #E340BC #BCE340

tetradic

#40BCE3 #B940E3 #E36740 #6BE340

square

#40BCE3 #B940E3 #E36740 #6BE340

split-complementary

#40BCE3 #E3406B #E3B940

monochromatic

#167593 #1D9FC8 #40BCE3 #75CFEB #ABE1F3

Accessibility & contrast

On white

2.21

#40BCE3 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

9.52

#40BCE3 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #40BCE3

9.52:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##40BCE3	#FFFFFF	#000000	##000000
##40BCE3	1.00	2.21	9.52	9.52
#FFFFFF	2.21	1.00	21.00	21.00
#000000	9.52	21.00	1.00	1.00
##000000	9.52	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#A6B8E5

Deuteranopia (green-blind)

#8FA7E3

Tritanopia (blue-blind)

#00C8C9

Achromatopsia (no color)

#AFAFAF

Design tokens & code

CSS

--color: #40bce3;
/* rgb */ color: rgb(64, 188, 227);
/* oklch */ color: oklch(74.4% 0.120 223.2);

Tailwind

colors: {
  custom: {
    50: '#8ad0ec',
    500: '#40bce3',
    950: '#000000',
  },
}

SCSS

$custom: #40bce3;
$custom-light: #8ad0ec;
$custom-dark: #000000;

JSON

{
  "hex": "#40bce3",
  "rgb": {
    "r": 64,
    "g": 188,
    "b": 227
  },
  "hsl": {
    "h": 194.356,
    "s": 74.429,
    "l": 57.059
  },
  "oklch": {
    "l": 0.74363,
    "c": 0.11982,
    "h": 223.2
  },
  "luminance": 0.42602
}

Semantic roles & 50–950 ramp

primary

#40BCE3

secondary

#E1AE9E

accent

#6337F1

background

#F9FCFE

surface

#F2F9FD

border

#CCD2D5

text

#0D1416

muted

#7E8284

Preview Lab

Preview with #40BCE3

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

Preview Lab → · Contrast checker → · Palette generator →