#103D4D#103D4D

#103D4D is a dark, muted cyan. Relative luminance 0.040; OKLCH L 33.8% C 0.055 H 225.9°. Best body text is #FFFFFF at 11.69:1 contrast (WCAG AA passes).

Color values

HEX	#103D4D
RGB	rgb(16, 61, 77)
HSL	hsl(196, 66%, 18%)
HSV	hsv(196, 79%, 30%)
CMYK	cmyk(79.2%, 20.8%, 0%, 69.8%)
CIE-LAB	lab(23.62, -8.95, -14.11)
CIE-LCH	lch(23.62, 16.71, 237.63°)
OKLab	oklab(33.78% -0.0383 -0.0395)
OKLCH	oklch(33.78% 0.055 225.9)
XYZ	xyz(3.2214, 3.9831, 7.6188)
Luminance	0.0398 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#103D4D #4D2010

analogous

#104D3E #103D4D #101E4D

triadic

#103D4D #4D103D #3D4D10

tetradic

#103D4D #3E104D #4D2010 #1E4D10

square

#103D4D #3E104D #4D2010 #1E4D10

split-complementary

#103D4D #4D101E #4D3E10

monochromatic

#051419 #05151A #103D4D #1B6580 #258DB2

Accessibility & contrast

On white

11.69

#103D4D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.80

#103D4D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #103D4D

11.69:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##103D4D	#FFFFFF	#000000	##FFFFFF
##103D4D	1.00	11.69	1.80	11.69
#FFFFFF	11.69	1.00	21.00	1.00
#000000	1.80	21.00	1.00	21.00
##FFFFFF	11.69	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#343C4E

Deuteranopia (green-blind)

#2C364D

Tritanopia (blue-blind)

#004242

Achromatopsia (no color)

#383838

Design tokens & code

CSS

--color: #103d4d;
/* rgb */ color: rgb(16, 61, 77);
/* oklch */ color: oklch(33.8% 0.055 225.9);

Tailwind

colors: {
  custom: {
    50: '#58727e',
    500: '#103d4d',
    950: '#000000',
  },
}

SCSS

$custom: #103d4d;
$custom-light: #58727e;
$custom-dark: #000000;

JSON

{
  "hex": "#103d4d",
  "rgb": {
    "r": 16,
    "g": 61,
    "b": 77
  },
  "hsl": {
    "h": 195.738,
    "s": 65.591,
    "l": 18.235
  },
  "oklch": {
    "l": 0.33779,
    "c": 0.05504,
    "h": 225.9
  },
  "luminance": 0.03983
}

Semantic roles & 50–950 ramp

primary

#103D4D

secondary

#874832

accent

#6C3FE9

background

#F5F6F7

surface

#E9ECEE

border

#C5C7C9

text

#04080A

muted

#797B7C

Preview Lab

Preview with #103D4D

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

Preview Lab → · Contrast checker → · Palette generator →