#255AA9#255AA9

#255AA9 is a mid, vivid blue. Relative luminance 0.106; OKLCH L 47.6% C 0.139 H 258.6°. Best body text is #FFFFFF at 6.74:1 contrast (WCAG AA passes).

Color values

HEX#255AA9
RGBrgb(37, 90, 169)
HSLhsl(216, 64%, 40%)
HSVhsv(216, 78%, 66%)
CMYKcmyk(78.1%, 46.7%, 0%, 33.7%)
CIE-LABlab(38.84, 11.46, -47.43)
CIE-LCHlch(38.84, 48.79, 283.58°)
OKLaboklab(47.63% -0.0276 -0.1361)
OKLCHoklch(47.63% 0.139 258.6)
XYZxyz(11.5779, 10.5689, 38.9582)
Luminance0.1057 (WCAG relative)
Temperaturecool
Familyblue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#255AA9 #A97425
analogous
#259CA9 #255AA9 #3225A9
triadic
#255AA9 #A9255A #5AA925
tetradic
#255AA9 #A9259C #A97425 #25A932
square
#255AA9 #A9259C #A97425 #25A932
split-complementary
#255AA9 #A93225 #9CA925
monochromatic
#0F2545 #1A3F77 #255AA9 #3876D3 #6A99DE

Accessibility & contrast

On white

6.74
#255AA9 on #FFFFFF
AA ✓AA large ✓AAA ✗

On black

3.11
#255AA9 on #000000
AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #255AA9
6.74:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##255AA9#FFFFFF#000000##FFFFFF
##255AA91.006.743.116.74
#FFFFFF6.741.0021.001.00
#0000003.1121.001.0021.00
##FFFFFF6.741.0021.001.00

Color blindness preview

Protanopia (red-blind)
#3062AC
Deuteranopia (green-blind)
#0E56A7
Tritanopia (blue-blind)
#006D79
Achromatopsia (no color)
#5B5B5B

Design tokens & code

CSS
--color: #255aa9;
/* rgb */ color: rgb(37, 90, 169);
/* oklch */ color: oklch(47.6% 0.139 258.6);
Tailwind
colors: {
  custom: {
    50: '#7488c3',
    500: '#255aa9',
    950: '#000000',
  },
}
SCSS
$custom: #255aa9;
$custom-light: #7488c3;
$custom-dark: #000000;
JSON
{
  "hex": "#255aa9",
  "rgb": {
    "r": 37,
    "g": 90,
    "b": 169
  },
  "hsl": {
    "h": 215.909,
    "s": 64.078,
    "l": 40.392
  },
  "oklch": {
    "l": 0.47628,
    "c": 0.13886,
    "h": 258.6
  },
  "luminance": 0.1057
}

Semantic roles & 50–950 ramp

primary
#255AA9
secondary
#C49E65
accent
#A441E7
background
#F7F8FC
surface
#EEEFF8
border
#C9CAD1
text
#090B12
muted
#7B7C81

Preview Lab

Preview with #255AA9

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

Preview Lab → · Contrast checker → · Palette generator →

#255AA9 Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva