#40C1DD#40C1DD

#40C1DD is a light, moderate cyan. Relative luminance 0.445; OKLCH L 75.3% C 0.116 H 215.4°. Best body text is #000000 at 9.89:1 contrast (WCAG AA passes).

Color values

HEX	#40C1DD
RGB	rgb(64, 193, 221)
HSL	hsl(191, 70%, 56%)
HSV	hsv(191, 71%, 87%)
CMYK	cmyk(71%, 12.7%, 0%, 13.3%)
CIE-LAB	lab(72.53, -25.84, -24.13)
CIE-LCH	lch(72.53, 35.36, 223.04°)
OKLab	oklab(75.29% -0.0945 -0.0673)
OKLCH	oklch(75.29% 0.116 215.4)
XYZ	xyz(34.2300, 44.4464, 75.1676)
Luminance	0.4445 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#40C1DD #DD5C40

analogous

#40DDAB #40C1DD #4072DD

triadic

#40C1DD #DD40C1 #C1DD40

tetradic

#40C1DD #AB40DD #DD5C40 #72DD40

square

#40C1DD #AB40DD #DD5C40 #72DD40

split-complementary

#40C1DD #DD4072 #DDAB40

monochromatic

#19768A #22A2BE #40C1DD #74D2E6 #A8E3EF

Accessibility & contrast

On white

2.12

#40C1DD on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

9.89

#40C1DD on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #40C1DD

9.89:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##40C1DD	#FFFFFF	#000000	##000000
##40C1DD	1.00	2.12	9.89	9.89
#FFFFFF	2.12	1.00	21.00	21.00
#000000	9.89	21.00	1.00	1.00
##000000	9.89	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#AEBBDF

Deuteranopia (green-blind)

#98ABDD

Tritanopia (blue-blind)

#00CBCA

Achromatopsia (no color)

#B2B2B2

Design tokens & code

CSS

--color: #40c1dd;
/* rgb */ color: rgb(64, 193, 221);
/* oklch */ color: oklch(75.3% 0.116 215.4);

Tailwind

colors: {
  custom: {
    50: '#89d4e7',
    500: '#40c1dd',
    950: '#000000',
  },
}

SCSS

$custom: #40c1dd;
$custom-light: #89d4e7;
$custom-dark: #000000;

JSON

{
  "hex": "#40c1dd",
  "rgb": {
    "r": 64,
    "g": 193,
    "b": 221
  },
  "hsl": {
    "h": 190.701,
    "s": 69.778,
    "l": 55.882
  },
  "oklch": {
    "l": 0.7529,
    "c": 0.11602,
    "h": 215.4
  },
  "luminance": 0.4445
}

Semantic roles & 50–950 ramp

primary

#40C1DD

secondary

#DDA79C

accent

#5B3BED

background

#F9FDFE

surface

#F1FAFC

border

#CBD3D5

text

#0D1416

muted

#7E8384

Preview Lab

Preview with #40C1DD

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

Preview Lab → · Contrast checker → · Palette generator →