#255DAD#255DAD

#255DAD is a mid, vivid blue. Relative luminance 0.112; OKLCH L 48.6% C 0.141 H 258.0°. Best body text is #FFFFFF at 6.47:1 contrast (WCAG AA passes).

Color values

HEX#255DAD
RGBrgb(37, 93, 173)
HSLhsl(215, 65%, 41%)
HSVhsv(215, 79%, 68%)
CMYKcmyk(78.6%, 46.2%, 0%, 32.2%)
CIE-LABlab(39.98, 11.05, -47.97)
CIE-LCHlch(39.98, 49.23, 282.98°)
OKLaboklab(48.59% -0.0293 -0.1376)
OKLCHoklch(48.59% 0.141 258)
XYZxyz(12.2174, 11.2377, 41.0523)
Luminance0.1124 (WCAG relative)
Temperaturecool
Familyblue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#255DAD #AD7525
analogous
#25A1AD #255DAD #3125AD
triadic
#255DAD #AD255D #5DAD25
tetradic
#255DAD #AD25A1 #AD7525 #25AD31
square
#255DAD #AD25A1 #AD7525 #25AD31
split-complementary
#255DAD #AD3125 #A1AD25
monochromatic
#0F2748 #1A427B #255DAD #3A7AD5 #6D9CE0

Accessibility & contrast

On white

6.47
#255DAD on #FFFFFF
AA ✓AA large ✓AAA ✗

On black

3.25
#255DAD on #000000
AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #255DAD
6.47:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##255DAD#FFFFFF#000000##FFFFFF
##255DAD1.006.473.256.47
#FFFFFF6.471.0021.001.00
#0000003.2521.001.0021.00
##FFFFFF6.471.0021.001.00

Color blindness preview

Protanopia (red-blind)
#3265B0
Deuteranopia (green-blind)
#1158AB
Tritanopia (blue-blind)
#00707C
Achromatopsia (no color)
#5E5E5E

Design tokens & code

CSS
--color: #255dad;
/* rgb */ color: rgb(37, 93, 173);
/* oklch */ color: oklch(48.6% 0.141 258.0);
Tailwind
colors: {
  custom: {
    50: '#748ac6',
    500: '#255dad',
    950: '#000000',
  },
}
SCSS
$custom: #255dad;
$custom-light: #748ac6;
$custom-dark: #000000;
JSON
{
  "hex": "#255dad",
  "rgb": {
    "r": 37,
    "g": 93,
    "b": 173
  },
  "hsl": {
    "h": 215.294,
    "s": 64.762,
    "l": 41.176
  },
  "oklch": {
    "l": 0.48585,
    "c": 0.14073,
    "h": 258
  },
  "luminance": 0.11239
}

Semantic roles & 50–950 ramp

primary
#255DAD
secondary
#C69F68
accent
#A340E8
background
#F7F8FC
surface
#EEF0F8
border
#C9CBD1
text
#0A0B13
muted
#7C7C82

Preview Lab

Preview with #255DAD

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

Preview Lab → · Contrast checker → · Palette generator →

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