#103C4D#103C4D

#103C4D is a dark, muted cyan. Relative luminance 0.039; OKLCH L 33.5% C 0.055 H 227.9°. Best body text is #FFFFFF at 11.83:1 contrast (WCAG AA passes).

Color values

HEX	#103C4D
RGB	rgb(16, 60, 77)
HSL	hsl(197, 66%, 18%)
HSV	hsv(197, 79%, 30%)
CMYK	cmyk(79.2%, 22.1%, 0%, 69.8%)
CIE-LAB	lab(23.26, -8.31, -14.66)
CIE-LCH	lch(23.26, 16.85, 240.45°)
OKLab	oklab(33.5% -0.0371 -0.0411)
OKLCH	oklch(33.5% 0.055 227.9)
XYZ	xyz(3.1686, 3.8773, 7.6011)
Luminance	0.0388 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#103C4D #4D2110

analogous

#104D3F #103C4D #101D4D

triadic

#103C4D #4D103C #3C4D10

tetradic

#103C4D #3F104D #4D2110 #1D4D10

square

#103C4D #3F104D #4D2110 #1D4D10

split-complementary

#103C4D #4D101D #4D3F10

monochromatic

#051419 #05151A #103C4D #1B6380 #258BB2

Accessibility & contrast

On white

11.83

#103C4D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.78

#103C4D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #103C4D

11.83:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##103C4D	#FFFFFF	#000000	##FFFFFF
##103C4D	1.00	11.83	1.78	11.83
#FFFFFF	11.83	1.00	21.00	1.00
#000000	1.78	21.00	1.00	21.00
##FFFFFF	11.83	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#333B4E

Deuteranopia (green-blind)

#2B354D

Tritanopia (blue-blind)

#004142

Achromatopsia (no color)

#373737

Design tokens & code

CSS

--color: #103c4d;
/* rgb */ color: rgb(16, 60, 77);
/* oklch */ color: oklch(33.5% 0.055 227.9);

Tailwind

colors: {
  custom: {
    50: '#58717e',
    500: '#103c4d',
    950: '#000000',
  },
}

SCSS

$custom: #103c4d;
$custom-light: #58717e;
$custom-dark: #000000;

JSON

{
  "hex": "#103c4d",
  "rgb": {
    "r": 16,
    "g": 60,
    "b": 77
  },
  "hsl": {
    "h": 196.721,
    "s": 65.591,
    "l": 18.235
  },
  "oklch": {
    "l": 0.33496,
    "c": 0.05539,
    "h": 227.9
  },
  "luminance": 0.03878
}

Semantic roles & 50–950 ramp

primary

#103C4D

secondary

#874A32

accent

#6E3FE9

background

#F5F6F7

surface

#E9ECEE

border

#C5C7C9

text

#04070A

muted

#797A7C

Preview Lab

Preview with #103C4D

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

Preview Lab → · Contrast checker → · Palette generator →