#1B144D#1B144D

#1B144D is a very dark, moderate blue. Relative luminance 0.013; OKLCH L 24.3% C 0.100 H 281.5°. Best body text is #FFFFFF at 16.75:1 contrast (WCAG AA passes).

Color values

HEX#1B144D
RGBrgb(27, 20, 77)
HSLhsl(247, 59%, 19%)
HSVhsv(247, 74%, 30%)
CMYKcmyk(64.9%, 74%, 0%, 69.8%)
CIE-LABlab(11.06, 22.36, -34.07)
CIE-LCHlch(11.06, 40.75, 303.28°)
OKLaboklab(24.28% 0.0199 -0.0981)
OKLCHoklch(24.28% 0.1 281.5)
XYZxyz(2.0413, 1.2690, 7.1571)
Luminance0.0127 (WCAG relative)
Temperaturecool
Familyblue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#1B144D #464D14
analogous
#142A4D #1B144D #38144D
triadic
#1B144D #4D1B14 #144D1B
tetradic
#1B144D #4D142A #464D14 #144D38
square
#1B144D #4D142A #464D14 #144D38
split-complementary
#1B144D #4D3814 #2A4D14
monochromatic
#090618 #0A071C #1B144D #2C217E #3D2DAE

Accessibility & contrast

On white

16.75
#1B144D on #FFFFFF
AA ✓AA large ✓AAA ✓

On black

1.25
#1B144D on #000000
AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1B144D
16.75:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##1B144D#FFFFFF#000000##FFFFFF
##1B144D1.0016.751.2516.75
#FFFFFF16.751.0021.001.00
#0000001.2521.001.0021.00
##FFFFFF16.751.0021.001.00

Color blindness preview

Protanopia (red-blind)
#00204F
Deuteranopia (green-blind)
#001C4C
Tritanopia (blue-blind)
#00232E
Achromatopsia (no color)
#1E1E1E

Design tokens & code

CSS
--color: #1b144d;
/* rgb */ color: rgb(27, 20, 77);
/* oklch */ color: oklch(24.3% 0.100 281.5);
Tailwind
colors: {
  custom: {
    50: '#5e527f',
    500: '#1b144d',
    950: '#000000',
  },
}
SCSS
$custom: #1b144d;
$custom-light: #5e527f;
$custom-dark: #000000;
JSON
{
  "hex": "#1b144d",
  "rgb": {
    "r": 27,
    "g": 20,
    "b": 77
  },
  "hsl": {
    "h": 247.368,
    "s": 58.763,
    "l": 19.02
  },
  "oklch": {
    "l": 0.24276,
    "c": 0.10009,
    "h": 281.5
  },
  "luminance": 0.01269
}

Semantic roles & 50–950 ramp

primary
#1B144D
secondary
#7C8538
accent
#E246CF
background
#F5F4F7
surface
#E9E7EE
border
#C5C3C9
text
#05020A
muted
#79787C

Preview Lab

Preview with #1B144D

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

Preview Lab → · Contrast checker → · Palette generator →

#1B144D Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva