#40A5BB#40A5BB

#40A5BB is a light, moderate cyan. Relative luminance 0.316; OKLCH L 67.2% C 0.097 H 214.8°. Best body text is #000000 at 7.32:1 contrast (WCAG AA passes).

Color values

HEX	#40A5BB
RGB	rgb(64, 165, 187)
HSL	hsl(191, 49%, 49%)
HSV	hsv(191, 66%, 73%)
CMYK	cmyk(65.8%, 11.8%, 0%, 26.7%)
CIE-LAB	lab(63.00, -22.15, -19.93)
CIE-LCH	lch(63.00, 29.80, 221.99°)
OKLab	oklab(67.23% -0.0798 -0.0554)
OKLCH	oklch(67.23% 0.097 214.8)
XYZ	xyz(24.5354, 31.5854, 51.8076)
Luminance	0.3159 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#40A5BB #BB5640

analogous

#40BB94 #40A5BB #4068BB

triadic

#40A5BB #BB40A5 #A5BB40

tetradic

#40A5BB #9440BB #BB5640 #68BB40

square

#40A5BB #9440BB #BB5640 #68BB40

split-complementary

#40A5BB #BB4068 #BB9440

monochromatic

#215560 #307D8D #40A5BB #6CBBCD #99D0DC

Accessibility & contrast

On white

2.87

#40A5BB on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

7.32

#40A5BB on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #40A5BB

7.32:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##40A5BB	#FFFFFF	#000000	##000000
##40A5BB	1.00	2.87	7.32	7.32
#FFFFFF	2.87	1.00	21.00	21.00
#000000	7.32	21.00	1.00	1.00
##000000	7.32	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#95A0BC

Deuteranopia (green-blind)

#8493BB

Tritanopia (blue-blind)

#00ADAC

Achromatopsia (no color)

#989898

Design tokens & code

CSS

--color: #40a5bb;
/* rgb */ color: rgb(64, 165, 187);
/* oklch */ color: oklch(67.2% 0.097 214.8);

Tailwind

colors: {
  custom: {
    50: '#83c0cf',
    500: '#40a5bb',
    950: '#000000',
  },
}

SCSS

$custom: #40a5bb;
$custom-light: #83c0cf;
$custom-dark: #000000;

JSON

{
  "hex": "#40a5bb",
  "rgb": {
    "r": 64,
    "g": 165,
    "b": 187
  },
  "hsl": {
    "h": 190.732,
    "s": 49.004,
    "l": 49.216
  },
  "oklch": {
    "l": 0.67228,
    "c": 0.09715,
    "h": 214.8
  },
  "luminance": 0.31588
}

Semantic roles & 50–950 ramp

primary

#40A5BB

secondary

#C8998F

accent

#684FD9

background

#F8FBFC

surface

#F0F7F9

border

#CBD0D2

text

#0C1213

muted

#7D8182

Preview Lab

Preview with #40A5BB

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

Preview Lab → · Contrast checker → · Palette generator →