#103F4F#103F4F

#103F4F is a dark, muted cyan. Relative luminance 0.042; OKLCH L 34.4% C 0.056 H 225.0°. Best body text is #FFFFFF at 11.38:1 contrast (WCAG AA passes).

Color values

HEX	#103F4F
RGB	rgb(16, 63, 79)
HSL	hsl(195, 66%, 19%)
HSV	hsv(195, 80%, 31%)
CMYK	cmyk(79.7%, 20.3%, 0%, 69%)
CIE-LAB	lab(24.42, -9.43, -14.20)
CIE-LCH	lch(24.42, 17.04, 236.42°)
OKLab	oklab(34.45% -0.0398 -0.0398)
OKLCH	oklch(34.45% 0.056 225)
XYZ	xyz(3.4019, 4.2293, 8.0327)
Luminance	0.0423 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#103F4F #4F2010

analogous

#104F3F #103F4F #101F4F

triadic

#103F4F #4F103F #3F4F10

tetradic

#103F4F #3F104F #4F2010 #1F4F10

square

#103F4F #3F104F #4F2010 #1F4F10

split-complementary

#103F4F #4F101F #4F3F10

monochromatic

#051419 #06161C #103F4F #1A6882 #2590B5

Accessibility & contrast

On white

11.38

#103F4F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.85

#103F4F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #103F4F

11.38:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##103F4F	#FFFFFF	#000000	##FFFFFF
##103F4F	1.00	11.38	1.85	11.38
#FFFFFF	11.38	1.00	21.00	1.00
#000000	1.85	21.00	1.00	21.00
##FFFFFF	11.38	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#363E50

Deuteranopia (green-blind)

#2E374F

Tritanopia (blue-blind)

#004444

Achromatopsia (no color)

#3A3A3A

Design tokens & code

CSS

--color: #103f4f;
/* rgb */ color: rgb(16, 63, 79);
/* oklch */ color: oklch(34.4% 0.056 225.0);

Tailwind

colors: {
  custom: {
    50: '#597480',
    500: '#103f4f',
    950: '#000000',
  },
}

SCSS

$custom: #103f4f;
$custom-light: #597480;
$custom-dark: #000000;

JSON

{
  "hex": "#103f4f",
  "rgb": {
    "r": 16,
    "g": 63,
    "b": 79
  },
  "hsl": {
    "h": 195.238,
    "s": 66.316,
    "l": 18.627
  },
  "oklch": {
    "l": 0.3445,
    "c": 0.05623,
    "h": 225
  },
  "luminance": 0.0423
}

Semantic roles & 50–950 ramp

primary

#103F4F

secondary

#894832

accent

#6A3FE9

background

#F5F7F7

surface

#E9EDEE

border

#C5C8C9

text

#04080A

muted

#797B7C

Preview Lab

Preview with #103F4F

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

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