#40B3DC#40B3DC

#40B3DC is a light, moderate cyan. Relative luminance 0.385; OKLCH L 72.0% C 0.117 H 225.9°. Best body text is #000000 at 8.70:1 contrast (WCAG AA passes).

Color values

HEX	#40B3DC
RGB	rgb(64, 179, 220)
HSL	hsl(196, 69%, 56%)
HSV	hsv(196, 71%, 86%)
CMYK	cmyk(70.9%, 18.6%, 0%, 13.7%)
CIE-LAB	lab(68.38, -19.00, -29.94)
CIE-LCH	lch(68.38, 35.46, 237.60°)
OKLab	oklab(71.95% -0.0813 -0.0839)
OKLCH	oklch(71.95% 0.117 225.9)
XYZ	xyz(31.1475, 38.4939, 73.4848)
Luminance	0.3850 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#40B3DC #DC6940

analogous

#40DCB7 #40B3DC #4065DC

triadic

#40B3DC #DC40B3 #B3DC40

tetradic

#40B3DC #B740DC #DC6940 #65DC40

square

#40B3DC #B740DC #DC6940 #65DC40

split-complementary

#40B3DC #DC4065 #DCB740

monochromatic

#196B89 #2394BC #40B3DC #74C8E5 #A7DCEF

Accessibility & contrast

On white

2.41

#40B3DC on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

8.70

#40B3DC on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #40B3DC

8.70:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##40B3DC	#FFFFFF	#000000	##000000
##40B3DC	1.00	2.41	8.70	8.70
#FFFFFF	2.41	1.00	21.00	21.00
#000000	8.70	21.00	1.00	1.00
##000000	8.70	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#9DAFDE

Deuteranopia (green-blind)

#87A0DC

Tritanopia (blue-blind)

#00BFC0

Achromatopsia (no color)

#A7A7A7

Design tokens & code

CSS

--color: #40b3dc;
/* rgb */ color: rgb(64, 179, 220);
/* oklch */ color: oklch(72.0% 0.117 225.9);

Tailwind

colors: {
  custom: {
    50: '#88c9e7',
    500: '#40b3dc',
    950: '#000000',
  },
}

SCSS

$custom: #40b3dc;
$custom-light: #88c9e7;
$custom-dark: #000000;

JSON

{
  "hex": "#40b3dc",
  "rgb": {
    "r": 64,
    "g": 179,
    "b": 220
  },
  "hsl": {
    "h": 195.769,
    "s": 69.027,
    "l": 55.686
  },
  "oklch": {
    "l": 0.71953,
    "c": 0.11677,
    "h": 225.9
  },
  "luminance": 0.38497
}

Semantic roles & 50–950 ramp

primary

#40B3DC

secondary

#DCAD9B

accent

#6A3CEC

background

#F9FCFE

surface

#F1F8FC

border

#CBD1D5

text

#0D1316

muted

#7E8284

Preview Lab

Preview with #40B3DC

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

Preview Lab → · Contrast checker → · Palette generator →