#404B59#404B59

#404B59 is a dark, muted cyan. Relative luminance 0.068; OKLCH L 40.9% C 0.028 H 254.6°. Best body text is #FFFFFF at 8.87:1 contrast (WCAG AA passes).

Color values

HEX	#404B59
RGB	rgb(64, 75, 89)
HSL	hsl(214, 16%, 30%)
HSV	hsv(214, 28%, 35%)
CMYK	cmyk(28.1%, 15.7%, 0%, 65.1%)
CIE-LAB	lab(31.45, -0.75, -9.71)
CIE-LCH	lch(31.45, 9.74, 265.59°)
OKLab	oklab(40.87% -0.0073 -0.0265)
OKLCH	oklch(40.87% 0.028 254.6)
XYZ	xyz(6.4331, 6.8432, 10.4312)
Luminance	0.0684 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#404B59 #594E40

analogous

#405859 #404B59 #414059

triadic

#404B59 #59404B #4B5940

tetradic

#404B59 #594058 #594E40 #405941

square

#404B59 #594058 #594E40 #405941

split-complementary

#404B59 #594140 #585940

monochromatic

#0D0F12 #262D35 #404B59 #5A697D #77879D

Accessibility & contrast

On white

8.87

#404B59 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.37

#404B59 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #404B59

8.87:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##404B59	#FFFFFF	#000000	##FFFFFF
##404B59	1.00	8.87	2.37	8.87
#FFFFFF	8.87	1.00	21.00	1.00
#000000	2.37	21.00	1.00	21.00
##FFFFFF	8.87	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#464B5A

Deuteranopia (green-blind)

#434959

Tritanopia (blue-blind)

#394E50

Achromatopsia (no color)

#4A4A4A

Design tokens & code

CSS

--color: #404b59;
/* rgb */ color: rgb(64, 75, 89);
/* oklch */ color: oklch(40.9% 0.028 254.6);

Tailwind

colors: {
  custom: {
    50: '#757d87',
    500: '#404b59',
    950: '#000000',
  },
}

SCSS

$custom: #404b59;
$custom-light: #757d87;
$custom-dark: #000000;

JSON

{
  "hex": "#404b59",
  "rgb": {
    "r": 64,
    "g": 75,
    "b": 89
  },
  "hsl": {
    "h": 213.6,
    "s": 16.34,
    "l": 30
  },
  "oklch": {
    "l": 0.40865,
    "c": 0.02753,
    "h": 254.6
  },
  "luminance": 0.06843
}

Semantic roles & 50–950 ramp

primary

#404B59

secondary

#887C6C

accent

#986FB9

background

#F7F7F8

surface

#EDEEEF

border

#C8C9CA

text

#08090B

muted

#7B7B7C

Preview Lab

Preview with #404B59

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

Preview Lab → · Contrast checker → · Palette generator →