#1B648B#1B648B

#1B648B is a mid, moderate cyan. Relative luminance 0.112; OKLCH L 47.9% C 0.093 H 237.4°. Best body text is #FFFFFF at 6.48:1 contrast (WCAG AA passes).

Color values

HEX#1B648B
RGBrgb(27, 100, 139)
HSLhsl(201, 67%, 33%)
HSVhsv(201, 81%, 55%)
CMYKcmyk(80.6%, 28.1%, 0%, 45.5%)
CIE-LABlab(39.93, -7.69, -27.76)
CIE-LCHlch(39.93, 28.81, 254.52°)
OKLaboklab(47.85% -0.0502 -0.0785)
OKLCHoklch(47.85% 0.093 237.4)
XYZxyz(9.6675, 11.2103, 26.0754)
Luminance0.1121 (WCAG relative)
Temperaturecool
Familycyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#1B648B #8B421B
analogous
#1B8B7A #1B648B #1B2C8B
triadic
#1B648B #8B1B64 #648B1B
tetradic
#1B648B #7A1B8B #8B421B #2C8B1B
square
#1B648B #7A1B8B #8B421B #2C8B1B
split-complementary
#1B648B #8B1B2C #8B7A1B
monochromatic
#071A25 #113F58 #1B648B #2589BE #45A7DB

Accessibility & contrast

On white

6.48
#1B648B on #FFFFFF
AA ✓AA large ✓AAA ✗

On black

3.24
#1B648B on #000000
AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #1B648B
6.48:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##1B648B#FFFFFF#000000##FFFFFF
##1B648B1.006.483.246.48
#FFFFFF6.481.0021.001.00
#0000003.2421.001.0021.00
##FFFFFF6.481.0021.001.00

Color blindness preview

Protanopia (red-blind)
#51648D
Deuteranopia (green-blind)
#42598A
Tritanopia (blue-blind)
#006E71
Achromatopsia (no color)
#5E5E5E

Design tokens & code

CSS
--color: #1b648b;
/* rgb */ color: rgb(27, 100, 139);
/* oklch */ color: oklch(47.9% 0.093 237.4);
Tailwind
colors: {
  custom: {
    50: '#6a90ad',
    500: '#1b648b',
    950: '#000000',
  },
}
SCSS
$custom: #1b648b;
$custom-light: #6a90ad;
$custom-dark: #000000;
JSON
{
  "hex": "#1b648b",
  "rgb": {
    "r": 27,
    "g": 100,
    "b": 139
  },
  "hsl": {
    "h": 200.893,
    "s": 67.47,
    "l": 32.549
  },
  "oklch": {
    "l": 0.4785,
    "c": 0.09318,
    "h": 237.4
  },
  "luminance": 0.11211
}

Semantic roles & 50–950 ramp

primary
#1B648B
secondary
#BC6F45
accent
#7A3DEA
background
#F6F8FA
surface
#ECF0F4
border
#C7CBCE
text
#070C10
muted
#7A7D7F

Preview Lab

Preview with #1B648B

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

Preview Lab → · Contrast checker → · Palette generator →

#1B648B Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva