#40586B#40586B

#40586B is a dark, muted cyan. Relative luminance 0.091; OKLCH L 44.9% C 0.043 H 242.7°. Best body text is #FFFFFF at 7.43:1 contrast (WCAG AA passes).

Color values

HEX	#40586B
RGB	rgb(64, 88, 107)
HSL	hsl(207, 25%, 34%)
HSV	hsv(207, 40%, 42%)
CMYK	cmyk(40.2%, 17.8%, 0%, 58%)
CIE-LAB	lab(36.23, -3.70, -13.77)
CIE-LCH	lch(36.23, 14.26, 254.95°)
OKLab	oklab(44.87% -0.0196 -0.038)
OKLCH	oklch(44.87% 0.043 242.7)
XYZ	xyz(8.2571, 9.1305, 15.2343)
Luminance	0.0913 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#40586B #6B5340

analogous

#406B68 #40586B #40426B

triadic

#40586B #6B4058 #586B40

tetradic

#40586B #68406B #6B5340 #426B40

square

#40586B #68406B #6B5340 #426B40

split-complementary

#40586B #6B4042 #6B6840

monochromatic

#12191E #293945 #40586B #577791 #7796AE

Accessibility & contrast

On white

7.43

#40586B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.83

#40586B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #40586B

7.43:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##40586B	#FFFFFF	#000000	##FFFFFF
##40586B	1.00	7.43	2.83	7.43
#FFFFFF	7.43	1.00	21.00	1.00
#000000	2.83	21.00	1.00	21.00
##FFFFFF	7.43	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#50586C

Deuteranopia (green-blind)

#4A536B

Tritanopia (blue-blind)

#315D5E

Achromatopsia (no color)

#555555

Design tokens & code

CSS

--color: #40586b;
/* rgb */ color: rgb(64, 88, 107);
/* oklch */ color: oklch(44.9% 0.043 242.7);

Tailwind

colors: {
  custom: {
    50: '#768795',
    500: '#40586b',
    950: '#000000',
  },
}

SCSS

$custom: #40586b;
$custom-light: #768795;
$custom-dark: #000000;

JSON

{
  "hex": "#40586b",
  "rgb": {
    "r": 64,
    "g": 88,
    "b": 107
  },
  "hsl": {
    "h": 206.512,
    "s": 25.146,
    "l": 33.529
  },
  "oklch": {
    "l": 0.4487,
    "c": 0.04274,
    "h": 242.7
  },
  "luminance": 0.09131
}

Semantic roles & 50–950 ramp

primary

#40586B

secondary

#99816E

accent

#8F66C2

background

#F7F8F9

surface

#EDEFF1

border

#C8CACB

text

#090B0D

muted

#7B7C7E

Preview Lab

Preview with #40586B

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

Preview Lab → · Contrast checker → · Palette generator →