#40A6BC#40A6BC

#40A6BC is a light, moderate cyan. Relative luminance 0.320; OKLCH L 67.5% C 0.098 H 214.6°. Best body text is #000000 at 7.40:1 contrast (WCAG AA passes).

Color values

HEX	#40A6BC
RGB	rgb(64, 166, 188)
HSL	hsl(191, 49%, 49%)
HSV	hsv(191, 66%, 74%)
CMYK	cmyk(66%, 11.7%, 0%, 26.3%)
CIE-LAB	lab(63.34, -22.36, -19.98)
CIE-LCH	lch(63.34, 29.98, 221.79°)
OKLab	oklab(67.51% -0.0804 -0.0556)
OKLCH	oklch(67.51% 0.098 214.6)
XYZ	xyz(24.8239, 31.9906, 52.4337)
Luminance	0.3199 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#40A6BC #BC5640

analogous

#40BC94 #40A6BC #4068BC

triadic

#40A6BC #BC40A6 #A6BC40

tetradic

#40A6BC #9440BC #BC5640 #68BC40

square

#40A6BC #9440BC #BC5640 #68BC40

split-complementary

#40A6BC #BC4068 #BC9440

monochromatic

#215561 #307E8E #40A6BC #6CBCCD #9AD1DD

Accessibility & contrast

On white

2.84

#40A6BC on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

7.40

#40A6BC on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #40A6BC

7.40:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##40A6BC	#FFFFFF	#000000	##000000
##40A6BC	1.00	2.84	7.40	7.40
#FFFFFF	2.84	1.00	21.00	21.00
#000000	7.40	21.00	1.00	1.00
##000000	7.40	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#96A1BD

Deuteranopia (green-blind)

#8494BC

Tritanopia (blue-blind)

#00AEAD

Achromatopsia (no color)

#999999

Design tokens & code

CSS

--color: #40a6bc;
/* rgb */ color: rgb(64, 166, 188);
/* oklch */ color: oklch(67.5% 0.098 214.6);

Tailwind

colors: {
  custom: {
    50: '#83c0d0',
    500: '#40a6bc',
    950: '#000000',
  },
}

SCSS

$custom: #40a6bc;
$custom-light: #83c0d0;
$custom-dark: #000000;

JSON

{
  "hex": "#40a6bc",
  "rgb": {
    "r": 64,
    "g": 166,
    "b": 188
  },
  "hsl": {
    "h": 190.645,
    "s": 49.206,
    "l": 49.412
  },
  "oklch": {
    "l": 0.6751,
    "c": 0.09775,
    "h": 214.6
  },
  "luminance": 0.31993
}

Semantic roles & 50–950 ramp

primary

#40A6BC

secondary

#C9998F

accent

#674FD9

background

#F8FBFC

surface

#F0F7F9

border

#CBD0D2

text

#0C1214

muted

#7D8182

Preview Lab

Preview with #40A6BC

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

Preview Lab → · Contrast checker → · Palette generator →