#40B5CE#40B5CE

#40B5CE is a light, moderate cyan. Relative luminance 0.386; OKLCH L 71.8% C 0.108 H 214.9°. Best body text is #000000 at 8.72:1 contrast (WCAG AA passes).

Color values

HEX	#40B5CE
RGB	rgb(64, 181, 206)
HSL	hsl(191, 59%, 53%)
HSV	hsv(191, 69%, 81%)
CMYK	cmyk(68.9%, 12.1%, 0%, 19.2%)
CIE-LAB	lab(68.45, -24.45, -22.15)
CIE-LCH	lch(68.45, 32.99, 222.18°)
OKLab	oklab(71.84% -0.0886 -0.0617)
OKLCH	oklch(71.84% 0.108 214.9)
XYZ	xyz(29.7741, 38.5906, 64.2601)
Luminance	0.3859 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#40B5CE #CE5940

analogous

#40CEA0 #40B5CE #406ECE

triadic

#40B5CE #CE40B5 #B5CE40

tetradic

#40B5CE #A040CE #CE5940 #6ECE40

square

#40B5CE #A040CE #CE5940 #6ECE40

split-complementary

#40B5CE #CE406E #CEA040

monochromatic

#1E6675 #2B90A6 #40B5CE #71C8DA #A1DBE7

Accessibility & contrast

On white

2.41

#40B5CE on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

8.72

#40B5CE on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #40B5CE

8.72:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##40B5CE	#FFFFFF	#000000	##000000
##40B5CE	1.00	2.41	8.72	8.72
#FFFFFF	2.41	1.00	21.00	21.00
#000000	8.72	21.00	1.00	1.00
##000000	8.72	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#A3AFCF

Deuteranopia (green-blind)

#8FA1CE

Tritanopia (blue-blind)

#00BEBD

Achromatopsia (no color)

#A7A7A7

Design tokens & code

CSS

--color: #40b5ce;
/* rgb */ color: rgb(64, 181, 206);
/* oklch */ color: oklch(71.8% 0.108 214.9);

Tailwind

colors: {
  custom: {
    50: '#87cbdd',
    500: '#40b5ce',
    950: '#000000',
  },
}

SCSS

$custom: #40b5ce;
$custom-light: #87cbdd;
$custom-dark: #000000;

JSON

{
  "hex": "#40b5ce",
  "rgb": {
    "r": 64,
    "g": 181,
    "b": 206
  },
  "hsl": {
    "h": 190.563,
    "s": 59.167,
    "l": 52.941
  },
  "oklch": {
    "l": 0.71838,
    "c": 0.10793,
    "h": 214.9
  },
  "luminance": 0.38594
}

Semantic roles & 50–950 ramp

primary

#40B5CE

secondary

#D4A196

accent

#6145E2

background

#F8FCFD

surface

#F0F8FB

border

#CBD1D4

text

#0D1315

muted

#7D8283

Preview Lab

Preview with #40B5CE

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

Preview Lab → · Contrast checker → · Palette generator →