#255AAE#255AAE

#255AAE is a mid, vivid blue. Relative luminance 0.108; OKLCH L 48.0% C 0.146 H 259.4°. Best body text is #FFFFFF at 6.66:1 contrast (WCAG AA passes).

Color values

HEX	#255AAE
RGB	rgb(37, 90, 174)
HSL	hsl(217, 65%, 41%)
HSV	hsv(217, 79%, 68%)
CMYK	cmyk(78.7%, 48.3%, 0%, 31.8%)
CIE-LAB	lab(39.17, 13.41, -49.86)
CIE-LCH	lch(39.17, 51.63, 285.05°)
OKLab	oklab(47.99% -0.0267 -0.1432)
OKLCH	oklch(47.99% 0.146 259.4)
XYZ	xyz(12.0563, 10.7602, 41.4777)
Luminance	0.1076 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#255AAE #AE7925

analogous

#259FAE #255AAE #3425AE

triadic

#255AAE #AE255A #5AAE25

tetradic

#255AAE #AE259F #AE7925 #25AE34

square

#255AAE #AE259F #AE7925 #25AE34

split-complementary

#255AAE #AE3425 #9FAE25

monochromatic

#102649 #1A407C #255AAE #3B77D5 #6D9AE0

Accessibility & contrast

On white

6.66

#255AAE on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.15

#255AAE on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #255AAE

6.66:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##255AAE	#FFFFFF	#000000	##FFFFFF
##255AAE	1.00	6.66	3.15	6.66
#FFFFFF	6.66	1.00	21.00	1.00
#000000	3.15	21.00	1.00	21.00
##FFFFFF	6.66	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2B63B1

Deuteranopia (green-blind)

#0056AC

Tritanopia (blue-blind)

#006E7B

Achromatopsia (no color)

#5C5C5C

Design tokens & code

CSS

--color: #255aae;
/* rgb */ color: rgb(37, 90, 174);
/* oklch */ color: oklch(48.0% 0.146 259.4);

Tailwind

colors: {
  custom: {
    50: '#7588c7',
    500: '#255aae',
    950: '#000000',
  },
}

SCSS

$custom: #255aae;
$custom-light: #7588c7;
$custom-dark: #000000;

JSON

{
  "hex": "#255aae",
  "rgb": {
    "r": 37,
    "g": 90,
    "b": 174
  },
  "hsl": {
    "h": 216.788,
    "s": 64.929,
    "l": 41.373
  },
  "oklch": {
    "l": 0.47987,
    "c": 0.14572,
    "h": 259.4
  },
  "luminance": 0.10762
}

Semantic roles & 50–950 ramp

primary

#255AAE

secondary

#C6A268

accent

#A740E8

background

#F7F8FC

surface

#EEEFF8

border

#C9CAD1

text

#0A0B13

muted

#7C7C82

Preview Lab

Preview with #255AAE

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

Preview Lab → · Contrast checker → · Palette generator →