#40BDE1#40BDE1

#40BDE1 is a light, moderate cyan. Relative luminance 0.429; OKLCH L 74.5% C 0.118 H 221.2°. Best body text is #000000 at 9.58:1 contrast (WCAG AA passes).

Color values

HEX	#40BDE1
RGB	rgb(64, 189, 225)
HSL	hsl(193, 73%, 57%)
HSV	hsv(193, 72%, 88%)
CMYK	cmyk(71.6%, 16%, 0%, 11.8%)
CIE-LAB	lab(71.50, -22.57, -27.88)
CIE-LCH	lch(71.50, 35.87, 231.00°)
OKLab	oklab(74.51% -0.0891 -0.0779)
OKLCH	oklch(74.51% 0.118 221.2)
XYZ	xyz(33.8969, 42.9175, 77.7170)
Luminance	0.4292 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#40BDE1 #E16440

analogous

#40E1B5 #40BDE1 #406DE1

triadic

#40BDE1 #E140BD #BDE140

tetradic

#40BDE1 #B540E1 #E16440 #6DE140

square

#40BDE1 #B540E1 #E16440 #6DE140

split-complementary

#40BDE1 #E1406D #E1B540

monochromatic

#177590 #1FA0C5 #40BDE1 #75CFE9 #AAE2F2

Accessibility & contrast

On white

2.19

#40BDE1 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

9.58

#40BDE1 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #40BDE1

9.58:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##40BDE1	#FFFFFF	#000000	##000000
##40BDE1	1.00	2.19	9.58	9.58
#FFFFFF	2.19	1.00	21.00	21.00
#000000	9.58	21.00	1.00	1.00
##000000	9.58	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#A8B8E3

Deuteranopia (green-blind)

#91A8E1

Tritanopia (blue-blind)

#00C8C9

Achromatopsia (no color)

#AFAFAF

Design tokens & code

CSS

--color: #40bde1;
/* rgb */ color: rgb(64, 189, 225);
/* oklch */ color: oklch(74.5% 0.118 221.2);

Tailwind

colors: {
  custom: {
    50: '#8ad1ea',
    500: '#40bde1',
    950: '#000000',
  },
}

SCSS

$custom: #40bde1;
$custom-light: #8ad1ea;
$custom-dark: #000000;

JSON

{
  "hex": "#40bde1",
  "rgb": {
    "r": 64,
    "g": 189,
    "b": 225
  },
  "hsl": {
    "h": 193.416,
    "s": 72.851,
    "l": 56.667
  },
  "oklch": {
    "l": 0.74513,
    "c": 0.11837,
    "h": 221.2
  },
  "luminance": 0.42921
}

Semantic roles & 50–950 ramp

primary

#40BDE1

secondary

#DFAC9D

accent

#6138F0

background

#F9FCFE

surface

#F2F9FD

border

#CCD2D5

text

#0D1416

muted

#7E8284

Preview Lab

Preview with #40BDE1

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

Preview Lab → · Contrast checker → · Palette generator →