#40666B#40666B

#40666B is a mid, muted teal. Relative luminance 0.117; OKLCH L 48.4% C 0.044 H 206.3°. Best body text is #FFFFFF at 6.30:1 contrast (WCAG AA passes).

Color values

HEX	#40666B
RGB	rgb(64, 102, 107)
HSL	hsl(187, 25%, 34%)
HSV	hsv(187, 40%, 42%)
CMYK	cmyk(40.2%, 4.7%, 0%, 58%)
CIE-LAB	lab(40.66, -12.03, -7.09)
CIE-LCH	lch(40.66, 13.96, 210.49°)
OKLab	oklab(48.39% -0.0392 -0.0194)
OKLCH	oklch(48.39% 0.044 206.3)
XYZ	xyz(9.5186, 11.6536, 15.6549)
Luminance	0.1165 (WCAG relative)
Temperature	cool
Family	teal

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#40666B #6B4540

analogous

#406B5A #40666B #40506B

triadic

#40666B #6B4066 #666B40

tetradic

#40666B #5A406B #6B4540 #506B40

square

#40666B #5A406B #6B4540 #506B40

split-complementary

#40666B #6B4050 #6B5A40

monochromatic

#121D1E #294145 #40666B #578B91 #77A8AE

Accessibility & contrast

On white

6.30

#40666B on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.33

#40666B on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #40666B

6.30:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##40666B	#FFFFFF	#000000	##FFFFFF
##40666B	1.00	6.30	3.33	6.30
#FFFFFF	6.30	1.00	21.00	1.00
#000000	3.33	21.00	1.00	21.00
##FFFFFF	6.30	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#60636B

Deuteranopia (green-blind)

#595D6B

Tritanopia (blue-blind)

#2F6967

Achromatopsia (no color)

#606060

Design tokens & code

CSS

--color: #40666b;
/* rgb */ color: rgb(64, 102, 107);
/* oklch */ color: oklch(48.4% 0.044 206.3);

Tailwind

colors: {
  custom: {
    50: '#779195',
    500: '#40666b',
    950: '#000000',
  },
}

SCSS

$custom: #40666b;
$custom-light: #779195;
$custom-dark: #000000;

JSON

{
  "hex": "#40666b",
  "rgb": {
    "r": 64,
    "g": 102,
    "b": 107
  },
  "hsl": {
    "h": 186.977,
    "s": 25.146,
    "l": 33.529
  },
  "oklch": {
    "l": 0.48385,
    "c": 0.0438,
    "h": 206.3
  },
  "luminance": 0.11654
}

Semantic roles & 50–950 ramp

primary

#40666B

secondary

#99736E

accent

#7166C2

background

#F7F8F9

surface

#EDF0F1

border

#C8CBCB

text

#090C0D

muted

#7B7D7E

Preview Lab

Preview with #40666B

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

Preview Lab → · Contrast checker → · Palette generator →