#40B7D5#40B7D5

#40B7D5 is a light, moderate cyan. Relative luminance 0.398; OKLCH L 72.6% C 0.112 H 218.1°. Best body text is #000000 at 8.95:1 contrast (WCAG AA passes).

Color values

HEX	#40B7D5
RGB	rgb(64, 183, 213)
HSL	hsl(192, 64%, 54%)
HSV	hsv(192, 70%, 84%)
CMYK	cmyk(70%, 14.1%, 0%, 16.5%)
CIE-LAB	lab(69.30, -23.29, -24.70)
CIE-LCH	lch(69.30, 33.95, 226.69°)
OKLab	oklab(72.6% -0.0878 -0.0689)
OKLCH	oklch(72.6% 0.112 218.1)
XYZ	xyz(31.0531, 39.7575, 68.9753)
Luminance	0.3976 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#40B7D5 #D55E40

analogous

#40D5A9 #40B7D5 #406CD5

triadic

#40B7D5 #D540B7 #B7D540

tetradic

#40B7D5 #A940D5 #D55E40 #6CD540

square

#40B7D5 #A940D5 #D55E40 #6CD540

split-complementary

#40B7D5 #D5406C #D5A940

monochromatic

#1C6B7F #2795B1 #40B7D5 #72CAE0 #A4DDEB

Accessibility & contrast

On white

2.35

#40B7D5 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

8.95

#40B7D5 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #40B7D5

8.95:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##40B7D5	#FFFFFF	#000000	##000000
##40B7D5	1.00	2.35	8.95	8.95
#FFFFFF	2.35	1.00	21.00	21.00
#000000	8.95	21.00	1.00	1.00
##000000	8.95	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#A4B2D7

Deuteranopia (green-blind)

#8FA3D5

Tritanopia (blue-blind)

#00C1C0

Achromatopsia (no color)

#A9A9A9

Design tokens & code

CSS

--color: #40b7d5;
/* rgb */ color: rgb(64, 183, 213);
/* oklch */ color: oklch(72.6% 0.112 218.1);

Tailwind

colors: {
  custom: {
    50: '#88cce2',
    500: '#40b7d5',
    950: '#000000',
  },
}

SCSS

$custom: #40b7d5;
$custom-light: #88cce2;
$custom-dark: #000000;

JSON

{
  "hex": "#40b7d5",
  "rgb": {
    "r": 64,
    "g": 183,
    "b": 213
  },
  "hsl": {
    "h": 192.081,
    "s": 63.948,
    "l": 54.314
  },
  "oklch": {
    "l": 0.72598,
    "c": 0.11163,
    "h": 218.1
  },
  "luminance": 0.39761
}

Semantic roles & 50–950 ramp

primary

#40B7D5

secondary

#D8A699

accent

#6241E7

background

#F9FCFD

surface

#F1F9FB

border

#CBD2D4

text

#0D1315

muted

#7E8283

Preview Lab

Preview with #40B7D5

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

Preview Lab → · Contrast checker → · Palette generator →