#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
RGB	rgb(37, 90, 169)
HSL	hsl(216, 64%, 40%)
HSV	hsv(216, 78%, 66%)
CMYK	cmyk(78.1%, 46.7%, 0%, 33.7%)
CIE-LAB	lab(38.84, 11.46, -47.43)
CIE-LCH	lch(38.84, 48.79, 283.58°)
OKLab	oklab(47.63% -0.0276 -0.1361)
OKLCH	oklch(47.63% 0.139 258.6)
XYZ	xyz(11.5779, 10.5689, 38.9582)
Luminance	0.1057 (WCAG relative)
Temperature	cool
Family	blue

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
##255AA9	1.00	6.74	3.11	6.74
#FFFFFF	6.74	1.00	21.00	1.00
#000000	3.11	21.00	1.00	21.00
##FFFFFF	6.74	1.00	21.00	1.00

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 →