#1B4D85#1B4D85

#1B4D85 is a dark, moderate cyan. Relative luminance 0.072; OKLCH L 41.8% C 0.107 H 253.9°. Best body text is #FFFFFF at 8.58:1 contrast (WCAG AA passes).

Color values

HEX#1B4D85
RGBrgb(27, 77, 133)
HSLhsl(212, 66%, 31%)
HSVhsv(212, 80%, 52%)
CMYKcmyk(79.7%, 42.1%, 0%, 47.8%)
CIE-LABlab(32.33, 4.57, -36.12)
CIE-LCHlch(32.33, 36.40, 277.22°)
OKLaboklab(41.76% -0.0298 -0.1032)
OKLCHoklch(41.76% 0.107 253.9)
XYZxyz(7.3379, 7.2334, 23.1952)
Luminance0.0723 (WCAG relative)
Temperaturecool
Familycyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#1B4D85 #85531B
analogous
#1B8285 #1B4D85 #1E1B85
triadic
#1B4D85 #851B4D #4D851B
tetradic
#1B4D85 #851B82 #85531B #1B851E
square
#1B4D85 #851B82 #85531B #1B851E
split-complementary
#1B4D85 #851E1B #82851B
monochromatic
#06121F #113052 #1B4D85 #256AB8 #4289D9

Accessibility & contrast

On white

8.58
#1B4D85 on #FFFFFF
AA ✓AA large ✓AAA ✓

On black

2.45
#1B4D85 on #000000
AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1B4D85
8.58:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##1B4D85#FFFFFF#000000##FFFFFF
##1B4D851.008.582.458.58
#FFFFFF8.581.0021.001.00
#0000002.4521.001.0021.00
##FFFFFF8.581.0021.001.00

Color blindness preview

Protanopia (red-blind)
#325187
Deuteranopia (green-blind)
#204884
Tritanopia (blue-blind)
#005A62
Achromatopsia (no color)
#4C4C4C

Design tokens & code

CSS
--color: #1b4d85;
/* rgb */ color: rgb(27, 77, 133);
/* oklch */ color: oklch(41.8% 0.107 253.9);
Tailwind
colors: {
  custom: {
    50: '#687ea9',
    500: '#1b4d85',
    950: '#000000',
  },
}
SCSS
$custom: #1b4d85;
$custom-light: #687ea9;
$custom-dark: #000000;
JSON
{
  "hex": "#1b4d85",
  "rgb": {
    "r": 27,
    "g": 77,
    "b": 133
  },
  "hsl": {
    "h": 211.698,
    "s": 66.25,
    "l": 31.373
  },
  "oklch": {
    "l": 0.41758,
    "c": 0.10746,
    "h": 253.9
  },
  "luminance": 0.07234
}

Semantic roles & 50–950 ramp

primary
#1B4D85
secondary
#B88144
accent
#993FE9
background
#F6F7FA
surface
#ECEEF4
border
#C7C9CE
text
#070910
muted
#7A7B7F

Preview Lab

Preview with #1B4D85

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

Preview Lab → · Contrast checker → · Palette generator →

#1B4D85 Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva