#1B3E98#1B3E98

#1B3E98 is a dark, vivid blue. Relative luminance 0.059; OKLCH L 39.9% C 0.153 H 264.3°. Best body text is #FFFFFF at 9.59:1 contrast (WCAG AA passes).

Color values

HEX#1B3E98
RGBrgb(27, 62, 152)
HSLhsl(223, 70%, 35%)
HSVhsv(223, 82%, 60%)
CMYKcmyk(82.2%, 59.2%, 0%, 40.4%)
CIE-LABlab(29.27, 22.52, -52.71)
CIE-LCHlch(29.27, 57.32, 293.13°)
OKLaboklab(39.85% -0.0152 -0.1523)
OKLCHoklch(39.85% 0.153 264.3)
XYZxyz(7.8401, 5.9443, 30.4338)
Luminance0.0595 (WCAG relative)
Temperaturecool
Familyblue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#1B3E98 #98751B
analogous
#1B7C98 #1B3E98 #371B98
triadic
#1B3E98 #981B3E #3E981B
tetradic
#1B3E98 #981B7C #98751B #1B9837
square
#1B3E98 #981B7C #98751B #1B9837
split-complementary
#1B3E98 #98371B #7C981B
monochromatic
#091430 #122964 #1B3E98 #2453CC #4E77E0

Accessibility & contrast

On white

9.59
#1B3E98 on #FFFFFF
AA ✓AA large ✓AAA ✓

On black

2.19
#1B3E98 on #000000
AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1B3E98
9.59:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##1B3E98#FFFFFF#000000##FFFFFF
##1B3E981.009.592.199.59
#FFFFFF9.591.0021.001.00
#0000002.1921.001.0021.00
##FFFFFF9.591.0021.001.00

Color blindness preview

Protanopia (red-blind)
#004B9B
Deuteranopia (green-blind)
#003F96
Tritanopia (blue-blind)
#005564
Achromatopsia (no color)
#454545

Design tokens & code

CSS
--color: #1b3e98;
/* rgb */ color: rgb(27, 62, 152);
/* oklch */ color: oklch(39.9% 0.153 264.3);
Tailwind
colors: {
  custom: {
    50: '#6e72b7',
    500: '#1b3e98',
    950: '#000000',
  },
}
SCSS
$custom: #1b3e98;
$custom-light: #6e72b7;
$custom-dark: #000000;
JSON
{
  "hex": "#1b3e98",
  "rgb": {
    "r": 27,
    "g": 62,
    "b": 152
  },
  "hsl": {
    "h": 223.2,
    "s": 69.832,
    "l": 35.098
  },
  "oklch": {
    "l": 0.3985,
    "c": 0.15309,
    "h": 264.3
  },
  "luminance": 0.05945
}

Semantic roles & 50–950 ramp

primary
#1B3E98
secondary
#C2A14D
accent
#BB3BED
background
#F7F6FB
surface
#EDECF6
border
#C8C7D0
text
#080811
muted
#7B7B80

Preview Lab

Preview with #1B3E98

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

Preview Lab → · Contrast checker → · Palette generator →

#1B3E98 Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva