#40C3ED#40C3ED

#40C3ED is a light, vivid cyan. Relative luminance 0.462; OKLCH L 76.4% C 0.125 H 223.8°. Best body text is #000000 at 10.25:1 contrast (WCAG AA passes).

Color values

HEX	#40C3ED
RGB	rgb(64, 195, 237)
HSL	hsl(195, 83%, 59%)
HSV	hsv(195, 73%, 93%)
CMYK	cmyk(73%, 17.7%, 0%, 7.1%)
CIE-LAB	lab(73.69, -21.83, -31.00)
CIE-LCH	lch(73.69, 37.92, 234.85°)
OKLab	oklab(76.42% -0.0904 -0.0868)
OKLCH	oklch(76.42% 0.125 223.8)
XYZ	xyz(36.9092, 46.2303, 87.0824)
Luminance	0.4623 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#40C3ED #ED6A40

analogous

#40EDC0 #40C3ED #406DED

triadic

#40C3ED #ED40C3 #C3ED40

tetradic

#40C3ED #C040ED #ED6A40 #6DED40

square

#40C3ED #C040ED #ED6A40 #6DED40

split-complementary

#40C3ED #ED406D #EDC040

monochromatic

#0F7FA3 #15ABDB #40C3ED #78D5F2 #B0E6F8

Accessibility & contrast

On white

2.05

#40C3ED on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

10.25

#40C3ED on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #40C3ED

10.25:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##40C3ED	#FFFFFF	#000000	##000000
##40C3ED	1.00	2.05	10.25	10.25
#FFFFFF	2.05	1.00	21.00	21.00
#000000	10.25	21.00	1.00	1.00
##000000	10.25	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#ABBFEF

Deuteranopia (green-blind)

#94AEED

Tritanopia (blue-blind)

#00D0D1

Achromatopsia (no color)

#B5B5B5

Design tokens & code

CSS

--color: #40c3ed;
/* rgb */ color: rgb(64, 195, 237);
/* oklch */ color: oklch(76.4% 0.125 223.8);

Tailwind

colors: {
  custom: {
    50: '#8cd5f3',
    500: '#40c3ed',
    950: '#000000',
  },
}

SCSS

$custom: #40c3ed;
$custom-light: #8cd5f3;
$custom-dark: #000000;

JSON

{
  "hex": "#40c3ed",
  "rgb": {
    "r": 64,
    "g": 195,
    "b": 237
  },
  "hsl": {
    "h": 194.566,
    "s": 82.775,
    "l": 59.02
  },
  "oklch": {
    "l": 0.76422,
    "c": 0.12533,
    "h": 223.8
  },
  "luminance": 0.46235
}

Semantic roles & 50–950 ramp

primary

#40C3ED

secondary

#E6B3A2

accent

#602FF9

background

#F9FDFE

surface

#F2FAFD

border

#CCD3D5

text

#0E1417

muted

#7E8385

Preview Lab

Preview with #40C3ED

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

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