#10404E#10404E

#10404E is a dark, muted cyan. Relative luminance 0.043; OKLCH L 34.7% C 0.055 H 221.4°. Best body text is #FFFFFF at 11.26:1 contrast (WCAG AA passes).

Color values

HEX	#10404E
RGB	rgb(16, 64, 78)
HSL	hsl(194, 66%, 18%)
HSV	hsv(194, 79%, 31%)
CMYK	cmyk(79.5%, 17.9%, 0%, 69.4%)
CIE-LAB	lab(24.72, -10.43, -13.07)
CIE-LCH	lch(24.72, 16.72, 231.39°)
OKLab	oklab(34.68% -0.0414 -0.0365)
OKLCH	oklch(34.68% 0.055 221.4)
XYZ	xyz(3.4217, 4.3266, 7.8610)
Luminance	0.0433 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#10404E #4E1E10

analogous

#104E3D #10404E #10214E

triadic

#10404E #4E1040 #404E10

tetradic

#10404E #3D104E #4E1E10 #214E10

square

#10404E #3D104E #4E1E10 #214E10

split-complementary

#10404E #4E1021 #4E3D10

monochromatic

#051519 #06161B #10404E #1A6A81 #2593B4

Accessibility & contrast

On white

11.26

#10404E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.87

#10404E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #10404E

11.26:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##10404E	#FFFFFF	#000000	##FFFFFF
##10404E	1.00	11.26	1.87	11.26
#FFFFFF	11.26	1.00	21.00	1.00
#000000	1.87	21.00	1.00	21.00
##FFFFFF	11.26	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#383E4F

Deuteranopia (green-blind)

#2F384E

Tritanopia (blue-blind)

#004444

Achromatopsia (no color)

#3B3B3B

Design tokens & code

CSS

--color: #10404e;
/* rgb */ color: rgb(16, 64, 78);
/* oklch */ color: oklch(34.7% 0.055 221.4);

Tailwind

colors: {
  custom: {
    50: '#59747f',
    500: '#10404e',
    950: '#000000',
  },
}

SCSS

$custom: #10404e;
$custom-light: #59747f;
$custom-dark: #000000;

JSON

{
  "hex": "#10404e",
  "rgb": {
    "r": 16,
    "g": 64,
    "b": 78
  },
  "hsl": {
    "h": 193.548,
    "s": 65.957,
    "l": 18.431
  },
  "oklch": {
    "l": 0.34681,
    "c": 0.05518,
    "h": 221.4
  },
  "luminance": 0.04327
}

Semantic roles & 50–950 ramp

primary

#10404E

secondary

#884532

accent

#653FE9

background

#F5F7F7

surface

#E9EDEE

border

#C5C8C9

text

#04080A

muted

#797B7C

Preview Lab

Preview with #10404E

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

Preview Lab → · Contrast checker → · Palette generator →