#103F5D#103F5D

#103F5D is a dark, moderate cyan. Relative luminance 0.045; OKLCH L 35.2% C 0.072 H 241.6°. Best body text is #FFFFFF at 11.11:1 contrast (WCAG AA passes).

Color values

HEX#103F5D
RGBrgb(16, 63, 93)
HSLhsl(203, 71%, 21%)
HSVhsv(203, 83%, 36%)
CMYKcmyk(82.8%, 32.3%, 0%, 63.5%)
CIE-LABlab(25.12, -3.82, -22.26)
CIE-LCHlch(25.12, 22.59, 260.25°)
OKLaboklab(35.24% -0.0341 -0.063)
OKLCHoklch(35.24% 0.072 241.6)
XYZxyz(3.9662, 4.4550, 11.0047)
Luminance0.0445 (WCAG relative)
Temperaturecool
Familycyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#103F5D #5D2E10
analogous
#105D55 #103F5D #10195D
triadic
#103F5D #5D103F #3F5D10
tetradic
#103F5D #55105D #5D2E10 #195D10
square
#103F5D #55105D #5D2E10 #195D10
split-complementary
#103F5D #5D1019 #5D5510
monochromatic
#04121A #071C29 #103F5D #196291 #2286C5

Accessibility & contrast

On white

11.11
#103F5D on #FFFFFF
AA ✓AA large ✓AAA ✓

On black

1.89
#103F5D on #000000
AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #103F5D
11.11:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##103F5D#FFFFFF#000000##FFFFFF
##103F5D1.0011.111.8911.11
#FFFFFF11.111.0021.001.00
#0000001.8921.001.0021.00
##FFFFFF11.111.0021.001.00

Color blindness preview

Protanopia (red-blind)
#31405E
Deuteranopia (green-blind)
#26385C
Tritanopia (blue-blind)
#00464A
Achromatopsia (no color)
#3C3C3C

Design tokens & code

CSS
--color: #103f5d;
/* rgb */ color: rgb(16, 63, 93);
/* oklch */ color: oklch(35.2% 0.072 241.6);
Tailwind
colors: {
  custom: {
    50: '#5c738b',
    500: '#103f5d',
    950: '#000000',
  },
}
SCSS
$custom: #103f5d;
$custom-light: #5c738b;
$custom-dark: #000000;
JSON
{
  "hex": "#103f5d",
  "rgb": {
    "r": 16,
    "g": 63,
    "b": 93
  },
  "hsl": {
    "h": 203.377,
    "s": 70.642,
    "l": 21.373
  },
  "oklch": {
    "l": 0.35245,
    "c": 0.0717,
    "h": 241.6
  },
  "luminance": 0.04455
}

Semantic roles & 50–950 ramp

primary
#103F5D
secondary
#965933
accent
#803AED
background
#F5F7F8
surface
#E9EDF0
border
#C5C8CB
text
#04080C
muted
#797B7D

Preview Lab

Preview with #103F5D

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

Preview Lab → · Contrast checker → · Palette generator →

#103F5D Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva