#40B4CE#40B4CE

#40B4CE is a light, moderate cyan. Relative luminance 0.382; OKLCH L 71.6% C 0.108 H 215.7°. Best body text is #000000 at 8.64:1 contrast (WCAG AA passes).

Color values

HEX	#40B4CE
RGB	rgb(64, 180, 206)
HSL	hsl(191, 59%, 53%)
HSV	hsv(191, 69%, 81%)
CMYK	cmyk(68.9%, 12.6%, 0%, 19.2%)
CIE-LAB	lab(68.16, -23.94, -22.60)
CIE-LCH	lch(68.16, 32.93, 223.35°)
OKLab	oklab(71.6% -0.0876 -0.063)
OKLCH	oklch(71.6% 0.108 215.7)
XYZ	xyz(29.5715, 38.1854, 64.1926)
Luminance	0.3819 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#40B4CE #CE5A40

analogous

#40CEA1 #40B4CE #406DCE

triadic

#40B4CE #CE40B4 #B4CE40

tetradic

#40B4CE #A140CE #CE5A40 #6DCE40

square

#40B4CE #A140CE #CE5A40 #6DCE40

split-complementary

#40B4CE #CE406D #CEA140

monochromatic

#1E6575 #2B90A6 #40B4CE #71C7DA #A1DAE7

Accessibility & contrast

On white

2.43

#40B4CE on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

8.64

#40B4CE on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #40B4CE

8.64:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##40B4CE	#FFFFFF	#000000	##000000
##40B4CE	1.00	2.43	8.64	8.64
#FFFFFF	2.43	1.00	21.00	21.00
#000000	8.64	21.00	1.00	1.00
##000000	8.64	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#A2AFCF

Deuteranopia (green-blind)

#8EA0CE

Tritanopia (blue-blind)

#00BEBC

Achromatopsia (no color)

#A6A6A6

Design tokens & code

CSS

--color: #40b4ce;
/* rgb */ color: rgb(64, 180, 206);
/* oklch */ color: oklch(71.6% 0.108 215.7);

Tailwind

colors: {
  custom: {
    50: '#87cadd',
    500: '#40b4ce',
    950: '#000000',
  },
}

SCSS

$custom: #40b4ce;
$custom-light: #87cadd;
$custom-dark: #000000;

JSON

{
  "hex": "#40b4ce",
  "rgb": {
    "r": 64,
    "g": 180,
    "b": 206
  },
  "hsl": {
    "h": 190.986,
    "s": 59.167,
    "l": 52.941
  },
  "oklch": {
    "l": 0.71599,
    "c": 0.10785,
    "h": 215.7
  },
  "luminance": 0.38189
}

Semantic roles & 50–950 ramp

primary

#40B4CE

secondary

#D4A196

accent

#6245E2

background

#F8FCFD

surface

#F0F8FB

border

#CBD1D4

text

#0D1315

muted

#7D8283

Preview Lab

Preview with #40B4CE

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

Preview Lab → · Contrast checker → · Palette generator →