#1B419B#1B419B

#1B419B is a dark, vivid blue. Relative luminance 0.064; OKLCH L 40.7% C 0.153 H 263.7°. Best body text is #FFFFFF at 9.23:1 contrast (WCAG AA passes).

Color values

HEX#1B419B
RGBrgb(27, 65, 155)
HSLhsl(222, 70%, 36%)
HSVhsv(222, 83%, 61%)
CMYKcmyk(82.6%, 58.1%, 0%, 39.2%)
CIE-LABlab(30.35, 21.66, -52.78)
CIE-LCHlch(30.35, 57.05, 292.31°)
OKLaboklab(40.74% -0.017 -0.1525)
OKLCHoklch(40.74% 0.153 263.7)
XYZxyz(8.2566, 6.3792, 31.8001)
Luminance0.0638 (WCAG relative)
Temperaturecool
Familyblue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#1B419B #9B751B
analogous
#1B819B #1B419B #351B9B
triadic
#1B419B #9B1B41 #419B1B
tetradic
#1B419B #9B1B81 #9B751B #1B9B35
square
#1B419B #9B1B81 #9B751B #1B9B35
split-complementary
#1B419B #9B351B #819B1B
monochromatic
#091533 #122B67 #1B419B #2457CF #507BE0

Accessibility & contrast

On white

9.23
#1B419B on #FFFFFF
AA ✓AA large ✓AAA ✓

On black

2.28
#1B419B on #000000
AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1B419B
9.23:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##1B419B#FFFFFF#000000##FFFFFF
##1B419B1.009.232.289.23
#FFFFFF9.231.0021.001.00
#0000002.2821.001.0021.00
##FFFFFF9.231.0021.001.00

Color blindness preview

Protanopia (red-blind)
#004E9E
Deuteranopia (green-blind)
#004299
Tritanopia (blue-blind)
#005867
Achromatopsia (no color)
#474747

Design tokens & code

CSS
--color: #1b419b;
/* rgb */ color: rgb(27, 65, 155);
/* oklch */ color: oklch(40.7% 0.153 263.7);
Tailwind
colors: {
  custom: {
    50: '#6e75b9',
    500: '#1b419b',
    950: '#000000',
  },
}
SCSS
$custom: #1b419b;
$custom-light: #6e75b9;
$custom-dark: #000000;
JSON
{
  "hex": "#1b419b",
  "rgb": {
    "r": 27,
    "g": 65,
    "b": 155
  },
  "hsl": {
    "h": 222.188,
    "s": 70.33,
    "l": 35.686
  },
  "oklch": {
    "l": 0.40737,
    "c": 0.15343,
    "h": 263.7
  },
  "luminance": 0.0638
}

Semantic roles & 50–950 ramp

primary
#1B419B
secondary
#C3A14F
accent
#B83BED
background
#F7F7FB
surface
#EDEDF6
border
#C8C8D0
text
#090812
muted
#7B7B81

Preview Lab

Preview with #1B419B

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

Preview Lab → · Contrast checker → · Palette generator →

#1B419B Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva