#404C58#404C58

#404C58 is a dark, muted cyan. Relative luminance 0.070; OKLCH L 41.1% C 0.025 H 248.4°. Best body text is #FFFFFF at 8.78:1 contrast (WCAG AA passes).

Color values

HEX	#404C58
RGB	rgb(64, 76, 88)
HSL	hsl(210, 16%, 30%)
HSV	hsv(210, 27%, 35%)
CMYK	cmyk(27.3%, 13.6%, 0%, 65.5%)
CIE-LAB	lab(31.72, -1.66, -8.65)
CIE-LCH	lch(31.72, 8.81, 259.17°)
OKLab	oklab(41.07% -0.0093 -0.0236)
OKLCH	oklch(41.07% 0.025 248.4)
XYZ	xyz(6.4598, 6.9632, 10.2343)
Luminance	0.0696 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#404C58 #584C40

analogous

#405858 #404C58 #404058

triadic

#404C58 #58404C #4C5840

tetradic

#404C58 #584058 #584C40 #405840

square

#404C58 #584058 #584C40 #405840

split-complementary

#404C58 #584040 #585840

monochromatic

#0D0F12 #262D35 #404C58 #5A6B7B #77899C

Accessibility & contrast

On white

8.78

#404C58 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.39

#404C58 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #404C58

8.78:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##404C58	#FFFFFF	#000000	##FFFFFF
##404C58	1.00	8.78	2.39	8.78
#FFFFFF	8.78	1.00	21.00	1.00
#000000	2.39	21.00	1.00	21.00
##FFFFFF	8.78	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#474C59

Deuteranopia (green-blind)

#454A58

Tritanopia (blue-blind)

#394F50

Achromatopsia (no color)

#4B4B4B

Design tokens & code

CSS

--color: #404c58;
/* rgb */ color: rgb(64, 76, 88);
/* oklch */ color: oklch(41.1% 0.025 248.4);

Tailwind

colors: {
  custom: {
    50: '#757e87',
    500: '#404c58',
    950: '#000000',
  },
}

SCSS

$custom: #404c58;
$custom-light: #757e87;
$custom-dark: #000000;

JSON

{
  "hex": "#404c58",
  "rgb": {
    "r": 64,
    "g": 76,
    "b": 88
  },
  "hsl": {
    "h": 210,
    "s": 15.789,
    "l": 29.804
  },
  "oklch": {
    "l": 0.41069,
    "c": 0.02539,
    "h": 248.4
  },
  "luminance": 0.06963
}

Semantic roles & 50–950 ramp

primary

#404C58

secondary

#877A6C

accent

#946FB9

background

#F7F7F8

surface

#EDEEEF

border

#C8C9CA

text

#08090B

muted

#7B7B7C

Preview Lab

Preview with #404C58

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

Preview Lab → · Contrast checker → · Palette generator →