#1D3170#1D3170

#1D3170 is a dark, moderate blue. Relative luminance 0.036; OKLCH L 33.7% C 0.112 H 266.9°. Best body text is #FFFFFF at 12.17:1 contrast (WCAG AA passes).

Color values

HEX#1D3170
RGBrgb(29, 49, 112)
HSLhsl(226, 59%, 28%)
HSVhsv(226, 74%, 44%)
CMYKcmyk(74.1%, 56.3%, 0%, 56.1%)
CIE-LABlab(22.40, 15.75, -38.87)
CIE-LCHlch(22.40, 41.94, 292.06°)
OKLaboklab(33.68% -0.006 -0.1118)
OKLCHoklch(33.68% 0.112 266.9)
XYZxyz(4.5286, 3.6272, 15.7876)
Luminance0.0363 (WCAG relative)
Temperaturecool
Familyblue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#1D3170 #705C1D
analogous
#1D5A70 #1D3170 #321D70
triadic
#1D3170 #701D31 #31701D
tetradic
#1D3170 #701D5A #705C1D #1D7032
square
#1D3170 #701D5A #705C1D #1D7032
split-complementary
#1D3170 #70321D #5A701D
monochromatic
#060B18 #101C3F #1D3170 #2A46A1 #3B5ECC

Accessibility & contrast

On white

12.17
#1D3170 on #FFFFFF
AA ✓AA large ✓AAA ✓

On black

1.73
#1D3170 on #000000
AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1D3170
12.17:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##1D3170#FFFFFF#000000##FFFFFF
##1D31701.0012.171.7312.17
#FFFFFF12.171.0021.001.00
#0000001.7321.001.0021.00
##FFFFFF12.171.0021.001.00

Color blindness preview

Protanopia (red-blind)
#033A72
Deuteranopia (green-blind)
#00326F
Tritanopia (blue-blind)
#00404B
Achromatopsia (no color)
#363636

Design tokens & code

CSS
--color: #1d3170;
/* rgb */ color: rgb(29, 49, 112);
/* oklch */ color: oklch(33.7% 0.112 266.9);
Tailwind
colors: {
  custom: {
    50: '#65689a',
    500: '#1d3170',
    950: '#000000',
  },
}
SCSS
$custom: #1d3170;
$custom-light: #65689a;
$custom-dark: #000000;
JSON
{
  "hex": "#1d3170",
  "rgb": {
    "r": 29,
    "g": 49,
    "b": 112
  },
  "hsl": {
    "h": 225.542,
    "s": 58.865,
    "l": 27.647
  },
  "oklch": {
    "l": 0.3368,
    "c": 0.11199,
    "h": 266.9
  },
  "luminance": 0.03628
}

Semantic roles & 50–950 ramp

primary
#1D3170
secondary
#A48D44
accent
#BC46E2
background
#F6F6F9
surface
#EBEBF2
border
#C6C6CC
text
#06060E
muted
#7A7A7E

Preview Lab

Preview with #1D3170

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

Preview Lab → · Contrast checker → · Palette generator →

#1D3170 Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva