#40B8D2#40B8D2

#40B8D2 is a light, moderate cyan. Relative luminance 0.400; OKLCH L 72.7% C 0.110 H 215.2°. Best body text is #000000 at 9.00:1 contrast (WCAG AA passes).

Color values

HEX	#40B8D2
RGB	rgb(64, 184, 210)
HSL	hsl(191, 62%, 54%)
HSV	hsv(191, 70%, 82%)
CMYK	cmyk(69.5%, 12.4%, 0%, 17.6%)
CIE-LAB	lab(69.48, -24.73, -22.77)
CIE-LCH	lch(69.48, 33.62, 222.65°)
OKLab	oklab(72.71% -0.09 -0.0634)
OKLCH	oklch(72.71% 0.11 215.2)
XYZ	xyz(30.8828, 40.0206, 67.0574)
Luminance	0.4002 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#40B8D2 #D25A40

analogous

#40D2A3 #40B8D2 #406FD2

triadic

#40B8D2 #D240B8 #B8D240

tetradic

#40B8D2 #A340D2 #D25A40 #6FD240

square

#40B8D2 #A340D2 #D25A40 #6FD240

split-complementary

#40B8D2 #D2406F #D2A340

monochromatic

#1D6A7B #2995AC #40B8D2 #72CADE #A3DDE9

Accessibility & contrast

On white

2.33

#40B8D2 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

9.00

#40B8D2 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #40B8D2

9.00:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##40B8D2	#FFFFFF	#000000	##000000
##40B8D2	1.00	2.33	9.00	9.00
#FFFFFF	2.33	1.00	21.00	21.00
#000000	9.00	21.00	1.00	1.00
##000000	9.00	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#A6B2D3

Deuteranopia (green-blind)

#91A3D2

Tritanopia (blue-blind)

#00C2C0

Achromatopsia (no color)

#AAAAAA

Design tokens & code

CSS

--color: #40b8d2;
/* rgb */ color: rgb(64, 184, 210);
/* oklch */ color: oklch(72.7% 0.110 215.2);

Tailwind

colors: {
  custom: {
    50: '#87cddf',
    500: '#40b8d2',
    950: '#000000',
  },
}

SCSS

$custom: #40b8d2;
$custom-light: #87cddf;
$custom-dark: #000000;

JSON

{
  "hex": "#40b8d2",
  "rgb": {
    "r": 64,
    "g": 184,
    "b": 210
  },
  "hsl": {
    "h": 190.685,
    "s": 61.864,
    "l": 53.725
  },
  "oklch": {
    "l": 0.72714,
    "c": 0.1101,
    "h": 215.2
  },
  "luminance": 0.40024
}

Semantic roles & 50–950 ramp

primary

#40B8D2

secondary

#D6A398

accent

#6043E5

background

#F9FCFD

surface

#F1F9FB

border

#CBD2D4

text

#0D1315

muted

#7E8283

Preview Lab

Preview with #40B8D2

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

Preview Lab → · Contrast checker → · Palette generator →