#40B4CC#40B4CC

#40B4CC is a light, moderate cyan. Relative luminance 0.381; OKLCH L 71.5% C 0.107 H 214.2°. Best body text is #000000 at 8.62:1 contrast (WCAG AA passes).

Color values

HEX	#40B4CC
RGB	rgb(64, 180, 204)
HSL	hsl(190, 58%, 53%)
HSV	hsv(190, 69%, 80%)
CMYK	cmyk(68.6%, 11.8%, 0%, 20%)
CIE-LAB	lab(68.09, -24.56, -21.61)
CIE-LCH	lch(68.09, 32.71, 221.35°)
OKLab	oklab(71.52% -0.0884 -0.0602)
OKLCH	oklch(71.52% 0.107 214.2)
XYZ	xyz(29.3301, 38.0888, 62.9211)
Luminance	0.3809 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#40B4CC #CC5840

analogous

#40CC9E #40B4CC #406ECC

triadic

#40B4CC #CC40B4 #B4CC40

tetradic

#40B4CC #9E40CC #CC5840 #6ECC40

square

#40B4CC #9E40CC #CC5840 #6ECC40

split-complementary

#40B4CC #CC406E #CC9E40

monochromatic

#1F6473 #2C8FA3 #40B4CC #70C7D9 #A1DAE6

Accessibility & contrast

On white

2.44

#40B4CC on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

8.62

#40B4CC on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #40B4CC

8.62:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##40B4CC	#FFFFFF	#000000	##000000
##40B4CC	1.00	2.44	8.62	8.62
#FFFFFF	2.44	1.00	21.00	21.00
#000000	8.62	21.00	1.00	1.00
##000000	8.62	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#A3AECD

Deuteranopia (green-blind)

#8FA0CC

Tritanopia (blue-blind)

#00BDBB

Achromatopsia (no color)

#A6A6A6

Design tokens & code

CSS

--color: #40b4cc;
/* rgb */ color: rgb(64, 180, 204);
/* oklch */ color: oklch(71.5% 0.107 214.2);

Tailwind

colors: {
  custom: {
    50: '#86cadb',
    500: '#40b4cc',
    950: '#000000',
  },
}

SCSS

$custom: #40b4cc;
$custom-light: #86cadb;
$custom-dark: #000000;

JSON

{
  "hex": "#40b4cc",
  "rgb": {
    "r": 64,
    "g": 180,
    "b": 204
  },
  "hsl": {
    "h": 190.286,
    "s": 57.851,
    "l": 52.549
  },
  "oklch": {
    "l": 0.71519,
    "c": 0.1069,
    "h": 214.2
  },
  "luminance": 0.38092
}

Semantic roles & 50–950 ramp

primary

#40B4CC

secondary

#D2A095

accent

#6147E1

background

#F8FCFD

surface

#F0F8FB

border

#CBD1D4

text

#0D1315

muted

#7D8283

Preview Lab

Preview with #40B4CC

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

Preview Lab → · Contrast checker → · Palette generator →