#40B0CA#40B0CA

#40B0CA is a light, moderate cyan. Relative luminance 0.364; OKLCH L 70.5% C 0.106 H 216.3°. Best body text is #000000 at 8.28:1 contrast (WCAG AA passes).

Color values

HEX	#40B0CA
RGB	rgb(64, 176, 202)
HSL	hsl(191, 57%, 52%)
HSV	hsv(191, 68%, 79%)
CMYK	cmyk(68.3%, 12.9%, 0%, 20.8%)
CIE-LAB	lab(66.83, -23.15, -22.43)
CIE-LCH	lch(66.83, 32.23, 224.10°)
OKLab	oklab(70.48% -0.0851 -0.0625)
OKLCH	oklch(70.48% 0.106 216.3)
XYZ	xyz(28.2959, 36.4017, 61.4006)
Luminance	0.3640 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#40B0CA #CA5A40

analogous

#40CA9F #40B0CA #406BCA

triadic

#40B0CA #CA40B0 #B0CA40

tetradic

#40B0CA #9F40CA #CA5A40 #6BCA40

square

#40B0CA #9F40CA #CA5A40 #6BCA40

split-complementary

#40B0CA #CA406B #CA9F40

monochromatic

#1F6170 #2C8AA0 #40B0CA #70C4D7 #A0D8E5

Accessibility & contrast

On white

2.54

#40B0CA on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

8.28

#40B0CA on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #40B0CA

8.28:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##40B0CA	#FFFFFF	#000000	##000000
##40B0CA	1.00	2.54	8.28	8.28
#FFFFFF	2.54	1.00	21.00	21.00
#000000	8.28	21.00	1.00	1.00
##000000	8.28	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#9EABCB

Deuteranopia (green-blind)

#8B9CCA

Tritanopia (blue-blind)

#00B9B8

Achromatopsia (no color)

#A3A3A3

Design tokens & code

CSS

--color: #40b0ca;
/* rgb */ color: rgb(64, 176, 202);
/* oklch */ color: oklch(70.5% 0.106 216.3);

Tailwind

colors: {
  custom: {
    50: '#86c7da',
    500: '#40b0ca',
    950: '#000000',
  },
}

SCSS

$custom: #40b0ca;
$custom-light: #86c7da;
$custom-dark: #000000;

JSON

{
  "hex": "#40b0ca",
  "rgb": {
    "r": 64,
    "g": 176,
    "b": 202
  },
  "hsl": {
    "h": 191.304,
    "s": 56.557,
    "l": 52.157
  },
  "oklch": {
    "l": 0.70482,
    "c": 0.10558,
    "h": 216.3
  },
  "luminance": 0.36405
}

Semantic roles & 50–950 ramp

primary

#40B0CA

secondary

#D1A095

accent

#6548E0

background

#F8FCFD

surface

#F0F8FA

border

#CBD1D3

text

#0C1314

muted

#7D8283

Preview Lab

Preview with #40B0CA

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

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