#40CBFF#40CBFF

#40CBFF is a light, vivid cyan. Relative luminance 0.510; OKLCH L 79.0% C 0.136 H 227.9°. Best body text is #000000 at 11.20:1 contrast (WCAG AA passes).

Color values

HEX	#40CBFF
RGB	rgb(64, 203, 255)
HSL	hsl(196, 100%, 63%)
HSV	hsv(196, 75%, 100%)
CMYK	cmyk(74.9%, 20.4%, 0%, 0%)
CIE-LAB	lab(76.69, -20.16, -36.04)
CIE-LCH	lch(76.69, 41.30, 240.78°)
OKLab	oklab(79.05% -0.0914 -0.1012)
OKLCH	oklch(79.05% 0.136 227.9)
XYZ	xyz(41.5129, 51.0169, 102.2477)
Luminance	0.5102 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#40CBFF #FF7440

analogous

#40FFD3 #40CBFF #406CFF

triadic

#40CBFF #FF40CB #CBFF40

tetradic

#40CBFF #D340FF #FF7440 #6CFF40

square

#40CBFF #D340FF #FF7440 #6CFF40

split-complementary

#40CBFF #FF406C #FFD340

monochromatic

#008FC5 #03BAFF #40CBFF #7DDCFF #BAECFF

Accessibility & contrast

On white

1.87

#40CBFF on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

11.20

#40CBFF on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #40CBFF

11.20:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##40CBFF	#FFFFFF	#000000	##000000
##40CBFF	1.00	1.87	11.20	11.20
#FFFFFF	1.87	1.00	21.00	21.00
#000000	11.20	21.00	1.00	1.00
##000000	11.20	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#B0C8FF

Deuteranopia (green-blind)

#96B5FE

Tritanopia (blue-blind)

#00DADC

Achromatopsia (no color)

#BDBDBD

Design tokens & code

CSS

--color: #40cbff;
/* rgb */ color: rgb(64, 203, 255);
/* oklch */ color: oklch(79.0% 0.136 227.9);

Tailwind

colors: {
  custom: {
    50: '#8fdbff',
    500: '#40cbff',
    950: '#000000',
  },
}

SCSS

$custom: #40cbff;
$custom-light: #8fdbff;
$custom-dark: #000000;

JSON

{
  "hex": "#40cbff",
  "rgb": {
    "r": 64,
    "g": 203,
    "b": 255
  },
  "hsl": {
    "h": 196.335,
    "s": 100,
    "l": 62.549
  },
  "oklch": {
    "l": 0.79049,
    "c": 0.13639,
    "h": 227.9
  },
  "luminance": 0.51022
}

Semantic roles & 50–950 ramp

primary

#40CBFF

secondary

#C14D22

accent

#3E00E6

background

#FCFEFF

surface

#F5FBFF

border

#CFD4D7

text

#0E1518

muted

#7F8486

Preview Lab

Preview with #40CBFF

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

Preview Lab → · Contrast checker → · Palette generator →