#40C1DF#40C1DF

#40C1DF is a light, moderate cyan. Relative luminance 0.446; OKLCH L 75.4% C 0.117 H 216.8°. Best body text is #000000 at 9.91:1 contrast (WCAG AA passes).

Color values

HEX	#40C1DF
RGB	rgb(64, 193, 223)
HSL	hsl(191, 71%, 56%)
HSV	hsv(191, 71%, 87%)
CMYK	cmyk(71.3%, 13.5%, 0%, 12.5%)
CIE-LAB	lab(72.60, -25.22, -25.11)
CIE-LCH	lch(72.60, 35.59, 224.87°)
OKLab	oklab(75.37% -0.0938 -0.07)
OKLCH	oklch(75.37% 0.117 216.8)
XYZ	xyz(34.4980, 44.5536, 76.5793)
Luminance	0.4456 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#40C1DF #DF5E40

analogous

#40DFAE #40C1DF #4072DF

triadic

#40C1DF #DF40C1 #C1DF40

tetradic

#40C1DF #AE40DF #DF5E40 #72DF40

square

#40C1DF #AE40DF #DF5E40 #72DF40

split-complementary

#40C1DF #DF4072 #DFAE40

monochromatic

#18778D #20A3C1 #40C1DF #74D2E8 #A9E3F1

Accessibility & contrast

On white

2.12

#40C1DF on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

9.91

#40C1DF on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #40C1DF

9.91:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##40C1DF	#FFFFFF	#000000	##000000
##40C1DF	1.00	2.12	9.91	9.91
#FFFFFF	2.12	1.00	21.00	21.00
#000000	9.91	21.00	1.00	1.00
##000000	9.91	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#ADBBE1

Deuteranopia (green-blind)

#97ABDF

Tritanopia (blue-blind)

#00CCCA

Achromatopsia (no color)

#B2B2B2

Design tokens & code

CSS

--color: #40c1df;
/* rgb */ color: rgb(64, 193, 223);
/* oklch */ color: oklch(75.4% 0.117 216.8);

Tailwind

colors: {
  custom: {
    50: '#8ad4e9',
    500: '#40c1df',
    950: '#000000',
  },
}

SCSS

$custom: #40c1df;
$custom-light: #8ad4e9;
$custom-dark: #000000;

JSON

{
  "hex": "#40c1df",
  "rgb": {
    "r": 64,
    "g": 193,
    "b": 223
  },
  "hsl": {
    "h": 191.321,
    "s": 71.3,
    "l": 56.275
  },
  "oklch": {
    "l": 0.7537,
    "c": 0.11703,
    "h": 216.8
  },
  "luminance": 0.44558
}

Semantic roles & 50–950 ramp

primary

#40C1DF

secondary

#DEA99D

accent

#5C3AEE

background

#F9FDFE

surface

#F2FAFC

border

#CCD3D5

text

#0D1416

muted

#7E8384

Preview Lab

Preview with #40C1DF

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

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