#1B5D90#1B5D90

#1B5D90 is a mid, moderate cyan. Relative luminance 0.101; OKLCH L 46.4% C 0.105 H 246.5°. Best body text is #FFFFFF at 6.97:1 contrast (WCAG AA passes).

Color values

HEX#1B5D90
RGBrgb(27, 93, 144)
HSLhsl(206, 68%, 34%)
HSVhsv(206, 81%, 56%)
CMYKcmyk(81.3%, 35.4%, 0%, 43.5%)
CIE-LABlab(37.98, -1.44, -33.86)
CIE-LCHlch(37.98, 33.89, 267.56°)
OKLaboklab(46.39% -0.0418 -0.0963)
OKLCHoklch(46.39% 0.105 246.5)
XYZxyz(9.3984, 10.0742, 27.8293)
Luminance0.1008 (WCAG relative)
Temperaturecool
Familycyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#1B5D90 #904E1B
analogous
#1B9088 #1B5D90 #1B2290
triadic
#1B5D90 #901B5D #5D901B
tetradic
#1B5D90 #881B90 #904E1B #22901B
square
#1B5D90 #881B90 #904E1B #22901B
split-complementary
#1B5D90 #901B22 #90881B
monochromatic
#081A29 #113C5C #1B5D90 #257EC4 #499CDD

Accessibility & contrast

On white

6.97
#1B5D90 on #FFFFFF
AA ✓AA large ✓AAA ✗

On black

3.01
#1B5D90 on #000000
AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #1B5D90
6.97:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##1B5D90#FFFFFF#000000##FFFFFF
##1B5D901.006.973.016.97
#FFFFFF6.971.0021.001.00
#0000003.0121.001.0021.00
##FFFFFF6.971.0021.001.00

Color blindness preview

Protanopia (red-blind)
#455F92
Deuteranopia (green-blind)
#34558F
Tritanopia (blue-blind)
#00696F
Achromatopsia (no color)
#595959

Design tokens & code

CSS
--color: #1b5d90;
/* rgb */ color: rgb(27, 93, 144);
/* oklch */ color: oklch(46.4% 0.105 246.5);
Tailwind
colors: {
  custom: {
    50: '#6b8ab1',
    500: '#1b5d90',
    950: '#000000',
  },
}
SCSS
$custom: #1b5d90;
$custom-light: #6b8ab1;
$custom-dark: #000000;
JSON
{
  "hex": "#1b5d90",
  "rgb": {
    "r": 27,
    "g": 93,
    "b": 144
  },
  "hsl": {
    "h": 206.154,
    "s": 68.421,
    "l": 33.529
  },
  "oklch": {
    "l": 0.46386,
    "c": 0.10503,
    "h": 246.5
  },
  "luminance": 0.10075
}

Semantic roles & 50–950 ramp

primary
#1B5D90
secondary
#BF7C48
accent
#893DEB
background
#F6F8FA
surface
#ECF0F5
border
#C7CBCF
text
#080B10
muted
#7A7C7F

Preview Lab

Preview with #1B5D90

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

Preview Lab → · Contrast checker → · Palette generator →

#1B5D90 Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva