#1A377F#1A377F

#1A377F is a dark, vivid blue. Relative luminance 0.045; OKLCH L 36.1% C 0.127 H 264.3°. Best body text is #FFFFFF at 11.07:1 contrast (WCAG AA passes).

Color values

HEX#1A377F
RGBrgb(26, 55, 127)
HSLhsl(223, 66%, 30%)
HSVhsv(223, 80%, 50%)
CMYKcmyk(79.5%, 56.7%, 0%, 50.2%)
CIE-LABlab(25.21, 17.18, -43.84)
CIE-LCHlch(25.21, 47.09, 291.40°)
OKLaboklab(36.14% -0.0125 -0.1264)
OKLCHoklch(36.14% 0.127 264.3)
XYZxyz(5.6216, 4.4837, 20.6437)
Luminance0.0448 (WCAG relative)
Temperaturecool
Familyblue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#1A377F #7F621A
analogous
#1A6A7F #1A377F #2F1A7F
triadic
#1A377F #7F1A37 #377F1A
tetradic
#1A377F #7F1A6A #7F621A #1A7F2F
square
#1A377F #7F1A6A #7F621A #1A7F2F
split-complementary
#1A377F #7F2F1A #6A7F1A
monochromatic
#050B19 #10214C #1A377F #244DB2 #3C69D7

Accessibility & contrast

On white

11.07
#1A377F on #FFFFFF
AA ✓AA large ✓AAA ✓

On black

1.90
#1A377F on #000000
AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1A377F
11.07:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##1A377F#FFFFFF#000000##FFFFFF
##1A377F1.0011.071.9011.07
#FFFFFF11.071.0021.001.00
#0000001.9021.001.0021.00
##FFFFFF11.071.0021.001.00

Color blindness preview

Protanopia (red-blind)
#004182
Deuteranopia (green-blind)
#00377E
Tritanopia (blue-blind)
#004955
Achromatopsia (no color)
#3C3C3C

Design tokens & code

CSS
--color: #1a377f;
/* rgb */ color: rgb(26, 55, 127);
/* oklch */ color: oklch(36.1% 0.127 264.3);
Tailwind
colors: {
  custom: {
    50: '#676da5',
    500: '#1a377f',
    950: '#000000',
  },
}
SCSS
$custom: #1a377f;
$custom-light: #676da5;
$custom-dark: #000000;
JSON
{
  "hex": "#1a377f",
  "rgb": {
    "r": 26,
    "g": 55,
    "b": 127
  },
  "hsl": {
    "h": 222.772,
    "s": 66.013,
    "l": 30
  },
  "oklch": {
    "l": 0.36142,
    "c": 0.12704,
    "h": 264.3
  },
  "luminance": 0.04484
}

Semantic roles & 50–950 ramp

primary
#1A377F
secondary
#B39242
accent
#B83FE9
background
#F6F6FA
surface
#EBEBF4
border
#C6C6CE
text
#07070F
muted
#7A7A7F

Preview Lab

Preview with #1A377F

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

Preview Lab → · Contrast checker → · Palette generator →

#1A377F Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva