#40C1DB#40C1DB

#40C1DB is a light, moderate cyan. Relative luminance 0.443; OKLCH L 75.2% C 0.115 H 214.1°. Best body text is #000000 at 9.87:1 contrast (WCAG AA passes).

Color values

HEX	#40C1DB
RGB	rgb(64, 193, 219)
HSL	hsl(190, 68%, 55%)
HSV	hsv(190, 71%, 86%)
CMYK	cmyk(70.8%, 11.9%, 0%, 14.1%)
CIE-LAB	lab(72.46, -26.46, -23.15)
CIE-LCH	lch(72.46, 35.16, 221.19°)
OKLab	oklab(75.21% -0.0953 -0.0645)
OKLCH	oklch(75.21% 0.115 214.1)
XYZ	xyz(33.9651, 44.3404, 73.7726)
Luminance	0.4434 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#40C1DB #DB5A40

analogous

#40DBA8 #40C1DB #4073DB

triadic

#40C1DB #DB40C1 #C1DB40

tetradic

#40C1DB #A840DB #DB5A40 #73DB40

square

#40C1DB #A840DB #DB5A40 #73DB40

split-complementary

#40C1DB #DB4073 #DBA840

monochromatic

#197587 #23A1BB #40C1DB #73D2E5 #A7E2EE

Accessibility & contrast

On white

2.13

#40C1DB on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

9.87

#40C1DB on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #40C1DB

9.87:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##40C1DB	#FFFFFF	#000000	##000000
##40C1DB	1.00	2.13	9.87	9.87
#FFFFFF	2.13	1.00	21.00	21.00
#000000	9.87	21.00	1.00	1.00
##000000	9.87	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#AEBBDC

Deuteranopia (green-blind)

#99ABDB

Tritanopia (blue-blind)

#00CBC9

Achromatopsia (no color)

#B2B2B2

Design tokens & code

CSS

--color: #40c1db;
/* rgb */ color: rgb(64, 193, 219);
/* oklch */ color: oklch(75.2% 0.115 214.1);

Tailwind

colors: {
  custom: {
    50: '#89d4e6',
    500: '#40c1db',
    950: '#000000',
  },
}

SCSS

$custom: #40c1db;
$custom-light: #89d4e6;
$custom-dark: #000000;

JSON

{
  "hex": "#40c1db",
  "rgb": {
    "r": 64,
    "g": 193,
    "b": 219
  },
  "hsl": {
    "h": 190.065,
    "s": 68.282,
    "l": 55.49
  },
  "oklch": {
    "l": 0.7521,
    "c": 0.11509,
    "h": 214.1
  },
  "luminance": 0.44344
}

Semantic roles & 50–950 ramp

primary

#40C1DB

secondary

#DCA69B

accent

#5A3DEB

background

#F9FDFE

surface

#F1FAFC

border

#CBD3D5

text

#0D1415

muted

#7E8384

Preview Lab

Preview with #40C1DB

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

Preview Lab → · Contrast checker → · Palette generator →