#40BDDE#40BDDE

#40BDDE is a light, moderate cyan. Relative luminance 0.428; OKLCH L 74.4% C 0.117 H 219.3°. Best body text is #000000 at 9.55:1 contrast (WCAG AA passes).

Color values

HEX	#40BDDE
RGB	rgb(64, 189, 222)
HSL	hsl(193, 71%, 56%)
HSV	hsv(193, 71%, 87%)
CMYK	cmyk(71.2%, 14.9%, 0%, 12.9%)
CIE-LAB	lab(71.39, -23.52, -26.41)
CIE-LCH	lch(71.39, 35.37, 228.32°)
OKLab	oklab(74.39% -0.0902 -0.0737)
OKLCH	oklch(74.39% 0.117 219.3)
XYZ	xyz(33.4913, 42.7552, 75.5806)
Luminance	0.4276 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#40BDDE #DE6140

analogous

#40DEB0 #40BDDE #406EDE

triadic

#40BDDE #DE40BD #BDDE40

tetradic

#40BDDE #B040DE #DE6140 #6EDE40

square

#40BDDE #B040DE #DE6140 #6EDE40

split-complementary

#40BDDE #DE406E #DEB040

monochromatic

#18738B #219FC0 #40BDDE #74CFE7 #A8E1F0

Accessibility & contrast

On white

2.20

#40BDDE on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

9.55

#40BDDE on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #40BDDE

9.55:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##40BDDE	#FFFFFF	#000000	##000000
##40BDDE	1.00	2.20	9.55	9.55
#FFFFFF	2.20	1.00	21.00	21.00
#000000	9.55	21.00	1.00	1.00
##000000	9.55	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#A8B8E0

Deuteranopia (green-blind)

#93A8DE

Tritanopia (blue-blind)

#00C8C7

Achromatopsia (no color)

#AFAFAF

Design tokens & code

CSS

--color: #40bdde;
/* rgb */ color: rgb(64, 189, 222);
/* oklch */ color: oklch(74.4% 0.117 219.3);

Tailwind

colors: {
  custom: {
    50: '#89d1e8',
    500: '#40bdde',
    950: '#000000',
  },
}

SCSS

$custom: #40bdde;
$custom-light: #89d1e8;
$custom-dark: #000000;

JSON

{
  "hex": "#40bdde",
  "rgb": {
    "r": 64,
    "g": 189,
    "b": 222
  },
  "hsl": {
    "h": 192.532,
    "s": 70.536,
    "l": 56.078
  },
  "oklch": {
    "l": 0.74387,
    "c": 0.11655,
    "h": 219.3
  },
  "luminance": 0.42759
}

Semantic roles & 50–950 ramp

primary

#40BDDE

secondary

#DEAA9C

accent

#603AED

background

#F9FCFE

surface

#F1F9FC

border

#CBD2D5

text

#0D1416

muted

#7E8284

Preview Lab

Preview with #40BDDE

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

Preview Lab → · Contrast checker → · Palette generator →