#40CBF1#40CBF1

#40CBF1 is a light, vivid cyan. Relative luminance 0.502; OKLCH L 78.4% C 0.127 H 220.4°. Best body text is #000000 at 11.03:1 contrast (WCAG AA passes).

Color values

HEX	#40CBF1
RGB	rgb(64, 203, 241)
HSL	hsl(193, 86%, 60%)
HSV	hsv(193, 73%, 95%)
CMYK	cmyk(73.4%, 15.8%, 0%, 5.5%)
CIE-LAB	lab(76.16, -24.62, -29.36)
CIE-LCH	lch(76.16, 38.31, 230.02°)
OKLab	oklab(78.45% -0.0965 -0.0821)
OKLCH	oklch(78.45% 0.127 220.4)
XYZ	xyz(39.3408, 50.1481, 90.8082)
Luminance	0.5015 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#40CBF1 #F16640

analogous

#40F1BE #40CBF1 #4073F1

triadic

#40CBF1 #F140CB #CBF140

tetradic

#40CBF1 #BE40F1 #F16640 #73F140

square

#40CBF1 #BE40F1 #F16640 #73F140

split-complementary

#40CBF1 #F14073 #F1BE40

monochromatic

#0C88AA #11B6E3 #40CBF1 #79DBF5 #B2EAF9

Accessibility & contrast

On white

1.90

#40CBF1 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

11.03

#40CBF1 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #40CBF1

11.03:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##40CBF1	#FFFFFF	#000000	##000000
##40CBF1	1.00	1.90	11.03	11.03
#FFFFFF	1.90	1.00	21.00	21.00
#000000	11.03	21.00	1.00	1.00
##000000	11.03	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#B4C6F3

Deuteranopia (green-blind)

#9CB4F1

Tritanopia (blue-blind)

#00D7D7

Achromatopsia (no color)

#BCBCBC

Design tokens & code

CSS

--color: #40cbf1;
/* rgb */ color: rgb(64, 203, 241);
/* oklch */ color: oklch(78.4% 0.127 220.4);

Tailwind

colors: {
  custom: {
    50: '#8ddbf5',
    500: '#40cbf1',
    950: '#000000',
  },
}

SCSS

$custom: #40cbf1;
$custom-light: #8ddbf5;
$custom-dark: #000000;

JSON

{
  "hex": "#40cbf1",
  "rgb": {
    "r": 64,
    "g": 203,
    "b": 241
  },
  "hsl": {
    "h": 192.881,
    "s": 86.341,
    "l": 59.804
  },
  "oklch": {
    "l": 0.78449,
    "c": 0.12668,
    "h": 220.4
  },
  "luminance": 0.50153
}

Semantic roles & 50–950 ramp

primary

#40CBF1

secondary

#AB462A

accent

#582BFD

background

#FCFEFF

surface

#F5FBFE

border

#CFD4D6

text

#0E1517

muted

#7F8485

Preview Lab

Preview with #40CBF1

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

Preview Lab → · Contrast checker → · Palette generator →