#10404F#10404F

#10404F is a dark, muted cyan. Relative luminance 0.043; OKLCH L 34.7% C 0.056 H 223.0°. Best body text is #FFFFFF at 11.24:1 contrast (WCAG AA passes).

Color values

HEX	#10404F
RGB	rgb(16, 64, 79)
HSL	hsl(194, 66%, 19%)
HSV	hsv(194, 80%, 31%)
CMYK	cmyk(79.7%, 19%, 0%, 69%)
CIE-LAB	lab(24.77, -10.05, -13.66)
CIE-LCH	lch(24.77, 16.96, 233.64°)
OKLab	oklab(34.73% -0.0409 -0.0382)
OKLCH	oklch(34.73% 0.056 223)
XYZ	xyz(3.4578, 4.3411, 8.0513)
Luminance	0.0434 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#10404F #4F1F10

analogous

#104F3E #10404F #10204F

triadic

#10404F #4F1040 #404F10

tetradic

#10404F #3E104F #4F1F10 #204F10

square

#10404F #3E104F #4F1F10 #204F10

split-complementary

#10404F #4F1020 #4F3E10

monochromatic

#051519 #06171C #10404F #1A6982 #2592B5

Accessibility & contrast

On white

11.24

#10404F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.87

#10404F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #10404F

11.24:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##10404F	#FFFFFF	#000000	##FFFFFF
##10404F	1.00	11.24	1.87	11.24
#FFFFFF	11.24	1.00	21.00	1.00
#000000	1.87	21.00	1.00	21.00
##FFFFFF	11.24	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#373E50

Deuteranopia (green-blind)

#2F384F

Tritanopia (blue-blind)

#004545

Achromatopsia (no color)

#3B3B3B

Design tokens & code

CSS

--color: #10404f;
/* rgb */ color: rgb(16, 64, 79);
/* oklch */ color: oklch(34.7% 0.056 223.0);

Tailwind

colors: {
  custom: {
    50: '#597480',
    500: '#10404f',
    950: '#000000',
  },
}

SCSS

$custom: #10404f;
$custom-light: #597480;
$custom-dark: #000000;

JSON

{
  "hex": "#10404f",
  "rgb": {
    "r": 16,
    "g": 64,
    "b": 79
  },
  "hsl": {
    "h": 194.286,
    "s": 66.316,
    "l": 18.627
  },
  "oklch": {
    "l": 0.34733,
    "c": 0.05598,
    "h": 223
  },
  "luminance": 0.04341
}

Semantic roles & 50–950 ramp

primary

#10404F

secondary

#894732

accent

#673FE9

background

#F5F7F7

surface

#E9EDEE

border

#C5C8C9

text

#04080A

muted

#797B7C

Preview Lab

Preview with #10404F

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

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