#40A2B9#40A2B9

#40A2B9 is a light, moderate cyan. Relative luminance 0.304; OKLCH L 66.4% C 0.096 H 216.1°. Best body text is #000000 at 7.09:1 contrast (WCAG AA passes).

Color values

HEX	#40A2B9
RGB	rgb(64, 162, 185)
HSL	hsl(191, 49%, 49%)
HSV	hsv(191, 65%, 73%)
CMYK	cmyk(65.4%, 12.4%, 0%, 27.5%)
CIE-LAB	lab(62.02, -21.22, -20.30)
CIE-LCH	lch(62.02, 29.36, 223.73°)
OKLab	oklab(66.42% -0.0774 -0.0565)
OKLCH	oklch(66.42% 0.096 216.1)
XYZ	xyz(23.7880, 30.4309, 50.5096)
Luminance	0.3043 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#40A2B9 #B95740

analogous

#40B994 #40A2B9 #4066B9

triadic

#40A2B9 #B940A2 #A2B940

tetradic

#40A2B9 #9440B9 #B95740 #66B940

square

#40A2B9 #9440B9 #B95740 #66B940

split-complementary

#40A2B9 #B94066 #B99440

monochromatic

#21525E #307A8C #40A2B9 #6BB9CC #98CFDB

Accessibility & contrast

On white

2.96

#40A2B9 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

7.09

#40A2B9 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #40A2B9

7.09:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##40A2B9	#FFFFFF	#000000	##000000
##40A2B9	1.00	2.96	7.09	7.09
#FFFFFF	2.96	1.00	21.00	21.00
#000000	7.09	21.00	1.00	1.00
##000000	7.09	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#929DBA

Deuteranopia (green-blind)

#8190B9

Tritanopia (blue-blind)

#00AAA9

Achromatopsia (no color)

#969696

Design tokens & code

CSS

--color: #40a2b9;
/* rgb */ color: rgb(64, 162, 185);
/* oklch */ color: oklch(66.4% 0.096 216.1);

Tailwind

colors: {
  custom: {
    50: '#83bdce',
    500: '#40a2b9',
    950: '#000000',
  },
}

SCSS

$custom: #40a2b9;
$custom-light: #83bdce;
$custom-dark: #000000;

JSON

{
  "hex": "#40a2b9",
  "rgb": {
    "r": 64,
    "g": 162,
    "b": 185
  },
  "hsl": {
    "h": 191.405,
    "s": 48.594,
    "l": 48.824
  },
  "oklch": {
    "l": 0.66422,
    "c": 0.09584,
    "h": 216.1
  },
  "luminance": 0.30433
}

Semantic roles & 50–950 ramp

primary

#40A2B9

secondary

#C7998E

accent

#6A50D8

background

#F8FBFC

surface

#F0F6F9

border

#CBD0D2

text

#0C1213

muted

#7D8182

Preview Lab

Preview with #40A2B9

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

Preview Lab → · Contrast checker → · Palette generator →