#1B5C8C#1B5C8C

#1B5C8C is a mid, moderate cyan. Relative luminance 0.098; OKLCH L 45.9% C 0.101 H 245.3°. Best body text is #FFFFFF at 7.10:1 contrast (WCAG AA passes).

Color values

HEX#1B5C8C
RGBrgb(27, 92, 140)
HSLhsl(205, 68%, 33%)
HSVhsv(205, 81%, 55%)
CMYKcmyk(80.7%, 34.3%, 0%, 45.1%)
CIE-LABlab(37.44, -2.37, -32.28)
CIE-LCHlch(37.44, 32.37, 265.79°)
OKLaboklab(45.9% -0.0421 -0.0917)
OKLCHoklch(45.9% 0.101 245.3)
XYZxyz(9.0109, 9.7797, 26.2186)
Luminance0.0978 (WCAG relative)
Temperaturecool
Familycyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#1B5C8C #8C4B1B
analogous
#1B8C84 #1B5C8C #1B238C
triadic
#1B5C8C #8C1B5C #5C8C1B
tetradic
#1B5C8C #841B8C #8C4B1B #238C1B
square
#1B5C8C #841B8C #8C4B1B #238C1B
split-complementary
#1B5C8C #8C1B23 #8C841B
monochromatic
#071925 #113A59 #1B5C8C #257EBF #469CDB

Accessibility & contrast

On white

7.10
#1B5C8C on #FFFFFF
AA ✓AA large ✓AAA ✓

On black

2.96
#1B5C8C on #000000
AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1B5C8C
7.10:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##1B5C8C#FFFFFF#000000##FFFFFF
##1B5C8C1.007.102.967.10
#FFFFFF7.101.0021.001.00
#0000002.9621.001.0021.00
##FFFFFF7.101.0021.001.00

Color blindness preview

Protanopia (red-blind)
#465E8E
Deuteranopia (green-blind)
#36538B
Tritanopia (blue-blind)
#00686D
Achromatopsia (no color)
#585858

Design tokens & code

CSS
--color: #1b5c8c;
/* rgb */ color: rgb(27, 92, 140);
/* oklch */ color: oklch(45.9% 0.101 245.3);
Tailwind
colors: {
  custom: {
    50: '#6a89ae',
    500: '#1b5c8c',
    950: '#000000',
  },
}
SCSS
$custom: #1b5c8c;
$custom-light: #6a89ae;
$custom-dark: #000000;
JSON
{
  "hex": "#1b5c8c",
  "rgb": {
    "r": 27,
    "g": 92,
    "b": 140
  },
  "hsl": {
    "h": 205.487,
    "s": 67.665,
    "l": 32.745
  },
  "oklch": {
    "l": 0.45897,
    "c": 0.10093,
    "h": 245.3
  },
  "luminance": 0.09781
}

Semantic roles & 50–950 ramp

primary
#1B5C8C
secondary
#BD7846
accent
#873DEB
background
#F6F8FA
surface
#ECF0F4
border
#C7CBCE
text
#070B10
muted
#7A7C7F

Preview Lab

Preview with #1B5C8C

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

Preview Lab → · Contrast checker → · Palette generator →

#1B5C8C Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva