#1B4B89#1B4B89

#1B4B89 is a dark, moderate cyan. Relative luminance 0.071; OKLCH L 41.6% C 0.115 H 256.4°. Best body text is #FFFFFF at 8.70:1 contrast (WCAG AA passes).

Color values

HEX#1B4B89
RGBrgb(27, 75, 137)
HSLhsl(214, 67%, 32%)
HSVhsv(214, 80%, 54%)
CMYKcmyk(80.3%, 45.3%, 0%, 46.3%)
CIE-LABlab(31.97, 7.53, -39.16)
CIE-LCHlch(31.97, 39.88, 280.89°)
OKLaboklab(41.56% -0.0271 -0.1122)
OKLCHoklch(41.56% 0.115 256.4)
XYZxyz(7.4818, 7.0704, 24.6325)
Luminance0.0707 (WCAG relative)
Temperaturecool
Familycyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#1B4B89 #89591B
analogous
#1B8289 #1B4B89 #221B89
triadic
#1B4B89 #891B4B #4B891B
tetradic
#1B4B89 #891B82 #89591B #1B8922
square
#1B4B89 #891B82 #89591B #1B8922
split-complementary
#1B4B89 #89221B #82891B
monochromatic
#071323 #112F56 #1B4B89 #2567BC #4486DA

Accessibility & contrast

On white

8.70
#1B4B89 on #FFFFFF
AA ✓AA large ✓AAA ✓

On black

2.41
#1B4B89 on #000000
AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1B4B89
8.70:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##1B4B89#FFFFFF#000000##FFFFFF
##1B4B891.008.702.418.70
#FFFFFF8.701.0021.001.00
#0000002.4121.001.0021.00
##FFFFFF8.701.0021.001.00

Color blindness preview

Protanopia (red-blind)
#2B518B
Deuteranopia (green-blind)
#154788
Tritanopia (blue-blind)
#005A63
Achromatopsia (no color)
#4B4B4B

Design tokens & code

CSS
--color: #1b4b89;
/* rgb */ color: rgb(27, 75, 137);
/* oklch */ color: oklch(41.6% 0.115 256.4);
Tailwind
colors: {
  custom: {
    50: '#697cac',
    500: '#1b4b89',
    950: '#000000',
  },
}
SCSS
$custom: #1b4b89;
$custom-light: #697cac;
$custom-dark: #000000;
JSON
{
  "hex": "#1b4b89",
  "rgb": {
    "r": 27,
    "g": 75,
    "b": 137
  },
  "hsl": {
    "h": 213.818,
    "s": 67.073,
    "l": 32.157
  },
  "oklch": {
    "l": 0.41555,
    "c": 0.11546,
    "h": 256.4
  },
  "luminance": 0.07071
}

Semantic roles & 50–950 ramp

primary
#1B4B89
secondary
#BC8744
accent
#9F3EEA
background
#F6F7FA
surface
#ECEEF4
border
#C7C9CE
text
#070910
muted
#7A7B7F

Preview Lab

Preview with #1B4B89

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

Preview Lab → · Contrast checker → · Palette generator →

#1B4B89 Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva