#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
RGB	rgb(37, 93, 173)
HSL	hsl(215, 65%, 41%)
HSV	hsv(215, 79%, 68%)
CMYK	cmyk(78.6%, 46.2%, 0%, 32.2%)
CIE-LAB	lab(39.98, 11.05, -47.97)
CIE-LCH	lch(39.98, 49.23, 282.98°)
OKLab	oklab(48.59% -0.0293 -0.1376)
OKLCH	oklch(48.59% 0.141 258)
XYZ	xyz(12.2174, 11.2377, 41.0523)
Luminance	0.1124 (WCAG relative)
Temperature	cool
Family	blue

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
##255DAD	1.00	6.47	3.25	6.47
#FFFFFF	6.47	1.00	21.00	1.00
#000000	3.25	21.00	1.00	21.00
##FFFFFF	6.47	1.00	21.00	1.00

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 →