#40A3BE#40A3BE

#40A3BE is a light, moderate cyan. Relative luminance 0.310; OKLCH L 66.9% C 0.099 H 219.2°. Best body text is #000000 at 7.20:1 contrast (WCAG AA passes).

Color values

HEX	#40A3BE
RGB	rgb(64, 163, 190)
HSL	hsl(193, 50%, 50%)
HSV	hsv(193, 66%, 75%)
CMYK	cmyk(66.3%, 14.2%, 0%, 25.5%)
CIE-LAB	lab(62.51, -20.18, -22.36)
CIE-LCH	lch(62.51, 30.12, 227.94°)
OKLab	oklab(66.87% -0.0765 -0.0623)
OKLCH	oklch(66.87% 0.099 219.2)
XYZ	xyz(24.5020, 30.9994, 53.3974)
Luminance	0.3100 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#40A3BE #BE5B40

analogous

#40BE9A #40A3BE #4064BE

triadic

#40A3BE #BE40A3 #A3BE40

tetradic

#40A3BE #9A40BE #BE5B40 #64BE40

square

#40A3BE #9A40BE #BE5B40 #64BE40

split-complementary

#40A3BE #BE4064 #BE9A40

monochromatic

#215462 #317C90 #40A3BE #6DB9CE #9BCFDD

Accessibility & contrast

On white

2.92

#40A3BE on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

7.20

#40A3BE on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #40A3BE

7.20:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##40A3BE	#FFFFFF	#000000	##000000
##40A3BE	1.00	2.92	7.20	7.20
#FFFFFF	2.92	1.00	21.00	21.00
#000000	7.20	21.00	1.00	1.00
##000000	7.20	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#929FBF

Deuteranopia (green-blind)

#8091BE

Tritanopia (blue-blind)

#00ACAC

Achromatopsia (no color)

#979797

Design tokens & code

CSS

--color: #40a3be;
/* rgb */ color: rgb(64, 163, 190);
/* oklch */ color: oklch(66.9% 0.099 219.2);

Tailwind

colors: {
  custom: {
    50: '#83bed1',
    500: '#40a3be',
    950: '#000000',
  },
}

SCSS

$custom: #40a3be;
$custom-light: #83bed1;
$custom-dark: #000000;

JSON

{
  "hex": "#40a3be",
  "rgb": {
    "r": 64,
    "g": 163,
    "b": 190
  },
  "hsl": {
    "h": 192.857,
    "s": 49.606,
    "l": 49.804
  },
  "oklch": {
    "l": 0.6687,
    "c": 0.09867,
    "h": 219.2
  },
  "luminance": 0.31002
}

Semantic roles & 50–950 ramp

primary

#40A3BE

secondary

#C99D90

accent

#6C4FD9

background

#F8FBFC

surface

#F0F6F9

border

#CBD0D2

text

#0C1214

muted

#7D8182

Preview Lab

Preview with #40A3BE

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

Preview Lab → · Contrast checker → · Palette generator →