#1B5C90#1B5C90

#1B5C90 is a mid, moderate cyan. Relative luminance 0.099; OKLCH L 46.1% C 0.106 H 247.3°. Best body text is #FFFFFF at 7.05:1 contrast (WCAG AA passes).

Color values

HEX#1B5C90
RGBrgb(27, 92, 144)
HSLhsl(207, 68%, 34%)
HSVhsv(207, 81%, 56%)
CMYKcmyk(81.3%, 36.1%, 0%, 43.5%)
CIE-LABlab(37.66, -0.81, -34.36)
CIE-LCHlch(37.66, 34.37, 268.65°)
OKLaboklab(46.14% -0.0409 -0.0978)
OKLCHoklch(46.14% 0.106 247.3)
XYZxyz(9.3112, 9.8998, 27.8003)
Luminance0.0990 (WCAG relative)
Temperaturecool
Familycyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#1B5C90 #904F1B
analogous
#1B9089 #1B5C90 #1B2190
triadic
#1B5C90 #901B5C #5C901B
tetradic
#1B5C90 #891B90 #904F1B #21901B
square
#1B5C90 #891B90 #904F1B #21901B
split-complementary
#1B5C90 #901B21 #90891B
monochromatic
#081A29 #113B5C #1B5C90 #257DC4 #499BDD

Accessibility & contrast

On white

7.05
#1B5C90 on #FFFFFF
AA ✓AA large ✓AAA ✓

On black

2.98
#1B5C90 on #000000
AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1B5C90
7.05:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##1B5C90#FFFFFF#000000##FFFFFF
##1B5C901.007.052.987.05
#FFFFFF7.051.0021.001.00
#0000002.9821.001.0021.00
##FFFFFF7.051.0021.001.00

Color blindness preview

Protanopia (red-blind)
#445E92
Deuteranopia (green-blind)
#33548F
Tritanopia (blue-blind)
#00696F
Achromatopsia (no color)
#595959

Design tokens & code

CSS
--color: #1b5c90;
/* rgb */ color: rgb(27, 92, 144);
/* oklch */ color: oklch(46.1% 0.106 247.3);
Tailwind
colors: {
  custom: {
    50: '#6b89b1',
    500: '#1b5c90',
    950: '#000000',
  },
}
SCSS
$custom: #1b5c90;
$custom-light: #6b89b1;
$custom-dark: #000000;
JSON
{
  "hex": "#1b5c90",
  "rgb": {
    "r": 27,
    "g": 92,
    "b": 144
  },
  "hsl": {
    "h": 206.667,
    "s": 68.421,
    "l": 33.529
  },
  "oklch": {
    "l": 0.46139,
    "c": 0.10602,
    "h": 247.3
  },
  "luminance": 0.09901
}

Semantic roles & 50–950 ramp

primary
#1B5C90
secondary
#BF7D48
accent
#8A3DEB
background
#F6F8FA
surface
#ECF0F5
border
#C7CBCF
text
#080B10
muted
#7A7C7F

Preview Lab

Preview with #1B5C90

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

Preview Lab → · Contrast checker → · Palette generator →

#1B5C90 Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva