#40A9BE#40A9BE

#40A9BE is a light, moderate cyan. Relative luminance 0.332; OKLCH L 68.3% C 0.099 H 213.4°. Best body text is #000000 at 7.64:1 contrast (WCAG AA passes).

Color values

HEX	#40A9BE
RGB	rgb(64, 169, 190)
HSL	hsl(190, 50%, 50%)
HSV	hsv(190, 66%, 75%)
CMYK	cmyk(66.3%, 11.1%, 0%, 25.5%)
CIE-LAB	lab(64.31, -23.28, -19.62)
CIE-LCH	lch(64.31, 30.44, 220.12°)
OKLab	oklab(68.32% -0.0827 -0.0545)
OKLCH	oklch(68.32% 0.099 213.4)
XYZ	xyz(25.5927, 33.1808, 53.7610)
Luminance	0.3318 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#40A9BE #BE5540

analogous

#40BE94 #40A9BE #406ABE

triadic

#40A9BE #BE40A9 #A9BE40

tetradic

#40A9BE #9440BE #BE5540 #6ABE40

square

#40A9BE #9440BE #BE5540 #6ABE40

split-complementary

#40A9BE #BE406A #BE9440

monochromatic

#215862 #318090 #40A9BE #6DBECE #9BD2DD

Accessibility & contrast

On white

2.75

#40A9BE on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

7.64

#40A9BE on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #40A9BE

7.64:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##40A9BE	#FFFFFF	#000000	##000000
##40A9BE	1.00	2.75	7.64	7.64
#FFFFFF	2.75	1.00	21.00	21.00
#000000	7.64	21.00	1.00	1.00
##000000	7.64	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#99A4BF

Deuteranopia (green-blind)

#8796BE

Tritanopia (blue-blind)

#00B1AF

Achromatopsia (no color)

#9C9C9C

Design tokens & code

CSS

--color: #40a9be;
/* rgb */ color: rgb(64, 169, 190);
/* oklch */ color: oklch(68.3% 0.099 213.4);

Tailwind

colors: {
  custom: {
    50: '#84c2d1',
    500: '#40a9be',
    950: '#000000',
  },
}

SCSS

$custom: #40a9be;
$custom-light: #84c2d1;
$custom-dark: #000000;

JSON

{
  "hex": "#40a9be",
  "rgb": {
    "r": 64,
    "g": 169,
    "b": 190
  },
  "hsl": {
    "h": 190,
    "s": 49.606,
    "l": 49.804
  },
  "oklch": {
    "l": 0.68315,
    "c": 0.09909,
    "h": 213.4
  },
  "luminance": 0.33184
}

Semantic roles & 50–950 ramp

primary

#40A9BE

secondary

#C99A90

accent

#664FD9

background

#F8FCFC

surface

#F0F8F9

border

#CBD1D2

text

#0C1214

muted

#7D8182

Preview Lab

Preview with #40A9BE

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

Preview Lab → · Contrast checker → · Palette generator →