#40A6BB#40A6BB

#40A6BB is a light, moderate cyan. Relative luminance 0.320; OKLCH L 67.5% C 0.097 H 213.8°. Best body text is #000000 at 7.39:1 contrast (WCAG AA passes).

Color values

HEX	#40A6BB
RGB	rgb(64, 166, 187)
HSL	hsl(190, 49%, 49%)
HSV	hsv(190, 66%, 73%)
CMYK	cmyk(65.8%, 11.2%, 0%, 26.7%)
CIE-LAB	lab(63.30, -22.66, -19.48)
CIE-LCH	lch(63.30, 29.88, 220.67°)
OKLab	oklab(67.47% -0.0808 -0.0541)
OKLCH	oklch(67.47% 0.097 213.8)
XYZ	xyz(24.7165, 31.9476, 51.8680)
Luminance	0.3195 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#40A6BB #BB5540

analogous

#40BB93 #40A6BB #4069BB

triadic

#40A6BB #BB40A6 #A6BB40

tetradic

#40A6BB #9340BB #BB5540 #69BB40

square

#40A6BB #9340BB #BB5540 #69BB40

split-complementary

#40A6BB #BB4069 #BB9340

monochromatic

#215560 #307E8D #40A6BB #6CBCCD #99D1DC

Accessibility & contrast

On white

2.84

#40A6BB on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

7.39

#40A6BB on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #40A6BB

7.39:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##40A6BB	#FFFFFF	#000000	##000000
##40A6BB	1.00	2.84	7.39	7.39
#FFFFFF	2.84	1.00	21.00	21.00
#000000	7.39	21.00	1.00	1.00
##000000	7.39	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#97A1BC

Deuteranopia (green-blind)

#8594BB

Tritanopia (blue-blind)

#00AEAC

Achromatopsia (no color)

#999999

Design tokens & code

CSS

--color: #40a6bb;
/* rgb */ color: rgb(64, 166, 187);
/* oklch */ color: oklch(67.5% 0.097 213.8);

Tailwind

colors: {
  custom: {
    50: '#83c0cf',
    500: '#40a6bb',
    950: '#000000',
  },
}

SCSS

$custom: #40a6bb;
$custom-light: #83c0cf;
$custom-dark: #000000;

JSON

{
  "hex": "#40a6bb",
  "rgb": {
    "r": 64,
    "g": 166,
    "b": 187
  },
  "hsl": {
    "h": 190.244,
    "s": 49.004,
    "l": 49.216
  },
  "oklch": {
    "l": 0.6747,
    "c": 0.09729,
    "h": 213.8
  },
  "luminance": 0.3195
}

Semantic roles & 50–950 ramp

primary

#40A6BB

secondary

#C8998F

accent

#674FD9

background

#F8FBFC

surface

#F0F7F9

border

#CBD0D2

text

#0C1213

muted

#7D8182

Preview Lab

Preview with #40A6BB

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

Preview Lab → · Contrast checker → · Palette generator →