#1D404B#1D404B

#1D404B is a dark, muted cyan. Relative luminance 0.044; OKLCH L 35.0% C 0.045 H 220.9°. Best body text is #FFFFFF at 11.13:1 contrast (WCAG AA passes).

Color values

HEX#1D404B
RGBrgb(29, 64, 75)
HSLhsl(194, 44%, 20%)
HSVhsv(194, 61%, 29%)
CMYKcmyk(61.3%, 14.7%, 0%, 70.6%)
CIE-LABlab(25.06, -8.93, -10.53)
CIE-LCHlch(25.06, 13.81, 229.70°)
OKLaboklab(35.04% -0.0337 -0.0292)
OKLCHoklch(35.04% 0.045 220.9)
XYZxyz(3.6096, 4.4357, 7.3212)
Luminance0.0444 (WCAG relative)
Temperaturecool
Familycyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#1D404B #4B281D
analogous
#1D4B3F #1D404B #1D294B
triadic
#1D404B #4B1D40 #404B1D
tetradic
#1D404B #3F1D4B #4B281D #294B1D
square
#1D404B #3F1D4B #4B281D #294B1D
split-complementary
#1D404B #4B1D29 #4B3F1D
monochromatic
#091316 #0C1A1F #1D404B #2E6677 #3F8BA3

Accessibility & contrast

On white

11.13
#1D404B on #FFFFFF
AA ✓AA large ✓AAA ✓

On black

1.89
#1D404B on #000000
AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1D404B
11.13:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##1D404B#FFFFFF#000000##FFFFFF
##1D404B1.0011.131.8911.13
#FFFFFF11.131.0021.001.00
#0000001.8921.001.0021.00
##FFFFFF11.131.0021.001.00

Color blindness preview

Protanopia (red-blind)
#393E4C
Deuteranopia (green-blind)
#33394B
Tritanopia (blue-blind)
#004443
Achromatopsia (no color)
#3B3B3B

Design tokens & code

CSS
--color: #1d404b;
/* rgb */ color: rgb(29, 64, 75);
/* oklch */ color: oklch(35.0% 0.045 220.9);
Tailwind
colors: {
  custom: {
    50: '#5e747d',
    500: '#1d404b',
    950: '#000000',
  },
}
SCSS
$custom: #1d404b;
$custom-light: #5e747d;
$custom-dark: #000000;
JSON
{
  "hex": "#1d404b",
  "rgb": {
    "r": 29,
    "g": 64,
    "b": 75
  },
  "hsl": {
    "h": 194.348,
    "s": 44.231,
    "l": 20.392
  },
  "oklch": {
    "l": 0.35042,
    "c": 0.04462,
    "h": 220.9
  },
  "luminance": 0.04436
}

Semantic roles & 50–950 ramp

primary
#1D404B
secondary
#805244
accent
#7254D4
background
#F5F7F7
surface
#E9EDEE
border
#C5C8C9
text
#040809
muted
#797B7B

Preview Lab

Preview with #1D404B

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

Preview Lab → · Contrast checker → · Palette generator →

#1D404B Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva