#40BDFF#40BDFF

#40BDFF is a light, vivid cyan. Relative luminance 0.447; OKLCH L 75.9% C 0.143 H 236.6°. Best body text is #000000 at 9.94:1 contrast (WCAG AA passes).

Color values

HEX	#40BDFF
RGB	rgb(64, 189, 255)
HSL	hsl(201, 100%, 63%)
HSV	hsv(201, 75%, 100%)
CMYK	cmyk(74.9%, 25.9%, 0%, 0%)
CIE-LAB	lab(72.69, -12.82, -42.26)
CIE-LCH	lch(72.69, 44.16, 253.13°)
OKLab	oklab(75.86% -0.0787 -0.1193)
OKLCH	oklch(75.86% 0.143 236.6)
XYZ	xyz(38.3548, 44.7006, 101.1950)
Luminance	0.4471 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#40BDFF #FF8240

analogous

#40FFE2 #40BDFF #405DFF

triadic

#40BDFF #FF40BD #BDFF40

tetradic

#40BDFF #E240FF #FF8240 #5DFF40

square

#40BDFF #E240FF #FF8240 #5DFF40

split-complementary

#40BDFF #FF405D #FFE240

monochromatic

#0081C5 #03A8FF #40BDFF #7DD2FF #BAE7FF

Accessibility & contrast

On white

2.11

#40BDFF on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

9.94

#40BDFF on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #40BDFF

9.94:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##40BDFF	#FFFFFF	#000000	##000000
##40BDFF	1.00	2.11	9.94	9.94
#FFFFFF	2.11	1.00	21.00	21.00
#000000	9.94	21.00	1.00	1.00
##000000	9.94	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#9DBCFF

Deuteranopia (green-blind)

#83AAFE

Tritanopia (blue-blind)

#00CED4

Achromatopsia (no color)

#B2B2B2

Design tokens & code

CSS

--color: #40bdff;
/* rgb */ color: rgb(64, 189, 255);
/* oklch */ color: oklch(75.9% 0.143 236.6);

Tailwind

colors: {
  custom: {
    50: '#8ed0ff',
    500: '#40bdff',
    950: '#000000',
  },
}

SCSS

$custom: #40bdff;
$custom-light: #8ed0ff;
$custom-dark: #000000;

JSON

{
  "hex": "#40bdff",
  "rgb": {
    "r": 64,
    "g": 189,
    "b": 255
  },
  "hsl": {
    "h": 200.733,
    "s": 100,
    "l": 62.549
  },
  "oklch": {
    "l": 0.75862,
    "c": 0.14287,
    "h": 236.6
  },
  "luminance": 0.44705
}

Semantic roles & 50–950 ramp

primary

#40BDFF

secondary

#F0C3AB

accent

#4F00E6

background

#F9FCFF

surface

#F2F9FF

border

#CCD2D7

text

#0E1418

muted

#7E8286

Preview Lab

Preview with #40BDFF

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

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