#10404A#10404A

#10404A is a dark, muted cyan. Relative luminance 0.043; OKLCH L 34.5% C 0.053 H 214.6°. Best body text is #FFFFFF at 11.33:1 contrast (WCAG AA passes).

Color values

HEX	#10404A
RGB	rgb(16, 64, 74)
HSL	hsl(190, 64%, 18%)
HSV	hsv(190, 78%, 29%)
CMYK	cmyk(78.4%, 13.5%, 0%, 71%)
CIE-LAB	lab(24.55, -11.95, -10.70)
CIE-LCH	lch(24.55, 16.04, 221.84°)
OKLab	oklab(34.48% -0.0432 -0.0298)
OKLCH	oklch(34.48% 0.053 214.6)
XYZ	xyz(3.2826, 4.2710, 7.1286)
Luminance	0.0427 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#10404A #4A1A10

analogous

#104A37 #10404A #10234A

triadic

#10404A #4A1040 #404A10

tetradic

#10404A #37104A #4A1A10 #234A10

square

#10404A #37104A #4A1A10 #234A10

split-complementary

#10404A #4A1023 #4A3710

monochromatic

#051619 #051619 #10404A #1B6C7C #2697AF

Accessibility & contrast

On white

11.33

#10404A on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.85

#10404A on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #10404A

11.33:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##10404A	#FFFFFF	#000000	##FFFFFF
##10404A	1.00	11.33	1.85	11.33
#FFFFFF	11.33	1.00	21.00	1.00
#000000	1.85	21.00	1.00	21.00
##FFFFFF	11.33	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#393E4B

Deuteranopia (green-blind)

#31384A

Tritanopia (blue-blind)

#004443

Achromatopsia (no color)

#3A3A3A

Design tokens & code

CSS

--color: #10404a;
/* rgb */ color: rgb(16, 64, 74);
/* oklch */ color: oklch(34.5% 0.053 214.6);

Tailwind

colors: {
  custom: {
    50: '#58757c',
    500: '#10404a',
    950: '#000000',
  },
}

SCSS

$custom: #10404a;
$custom-light: #58757c;
$custom-dark: #000000;

JSON

{
  "hex": "#10404a",
  "rgb": {
    "r": 16,
    "g": 64,
    "b": 74
  },
  "hsl": {
    "h": 190.345,
    "s": 64.444,
    "l": 17.647
  },
  "oklch": {
    "l": 0.34483,
    "c": 0.05251,
    "h": 214.6
  },
  "luminance": 0.04271
}

Semantic roles & 50–950 ramp

primary

#10404A

secondary

#844032

accent

#5D40E7

background

#F5F7F7

surface

#E9EDEE

border

#C5C8C9

text

#040809

muted

#797B7B

Preview Lab

Preview with #10404A

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

Preview Lab → · Contrast checker → · Palette generator →