#1A3671#1A3671

#1A3671 is a dark, moderate blue. Relative luminance 0.041; OKLCH L 34.8% C 0.108 H 262.9°. Best body text is #FFFFFF at 11.60:1 contrast (WCAG AA passes).

Color values

HEX#1A3671
RGBrgb(26, 54, 113)
HSLhsl(221, 63%, 27%)
HSVhsv(221, 77%, 44%)
CMYKcmyk(77%, 52.2%, 0%, 55.7%)
CIE-LABlab(23.84, 12.14, -37.19)
CIE-LCHlch(23.84, 39.12, 288.08°)
OKLaboklab(34.76% -0.0132 -0.1069)
OKLCHoklch(34.76% 0.108 262.9)
XYZxyz(4.7247, 4.0497, 16.1522)
Luminance0.0405 (WCAG relative)
Temperaturecool
Familyblue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#1A3671 #71551A
analogous
#1A6171 #1A3671 #2A1A71
triadic
#1A3671 #711A36 #36711A
tetradic
#1A3671 #711A61 #71551A #1A712A
square
#1A3671 #711A61 #71551A #1A712A
split-complementary
#1A3671 #712A1A #61711A
monochromatic
#060C19 #0F1E3F #1A3671 #254EA3 #3567D0

Accessibility & contrast

On white

11.60
#1A3671 on #FFFFFF
AA ✓AA large ✓AAA ✓

On black

1.81
#1A3671 on #000000
AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1A3671
11.60:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##1A3671#FFFFFF#000000##FFFFFF
##1A36711.0011.601.8111.60
#FFFFFF11.601.0021.001.00
#0000001.8121.001.0021.00
##FFFFFF11.601.0021.001.00

Color blindness preview

Protanopia (red-blind)
#133D73
Deuteranopia (green-blind)
#003570
Tritanopia (blue-blind)
#00444E
Achromatopsia (no color)
#393939

Design tokens & code

CSS
--color: #1a3671;
/* rgb */ color: rgb(26, 54, 113);
/* oklch */ color: oklch(34.8% 0.108 262.9);
Tailwind
colors: {
  custom: {
    50: '#646c9a',
    500: '#1a3671',
    950: '#000000',
  },
}
SCSS
$custom: #1a3671;
$custom-light: #646c9a;
$custom-dark: #000000;
JSON
{
  "hex": "#1a3671",
  "rgb": {
    "r": 26,
    "g": 54,
    "b": 113
  },
  "hsl": {
    "h": 220.69,
    "s": 62.59,
    "l": 27.255
  },
  "oklch": {
    "l": 0.34756,
    "c": 0.10769,
    "h": 262.9
  },
  "luminance": 0.0405
}

Semantic roles & 50–950 ramp

primary
#1A3671
secondary
#A68541
accent
#B142E6
background
#F6F6F9
surface
#EBEBF2
border
#C6C6CC
text
#06060E
muted
#7A7A7E

Preview Lab

Preview with #1A3671

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

Preview Lab → · Contrast checker → · Palette generator →

#1A3671 Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva