#253EA1#253EA1

#253EA1 is a dark, vivid blue. Relative luminance 0.064; OKLCH L 41.1% C 0.163 H 267.6°. Best body text is #FFFFFF at 9.20:1 contrast (WCAG AA passes).

Color values

HEX	#253EA1
RGB	rgb(37, 62, 161)
HSL	hsl(228, 63%, 39%)
HSV	hsv(228, 77%, 63%)
CMYK	cmyk(77%, 61.5%, 0%, 36.9%)
CIE-LAB	lab(30.43, 27.08, -56.28)
CIE-LCH	lch(30.43, 62.45, 295.69°)
OKLab	oklab(41.06% -0.0069 -0.1626)
OKLCH	oklch(41.06% 0.163 267.6)
XYZ	xyz(8.9164, 6.4108, 34.4788)
Luminance	0.0641 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#253EA1 #A18825

analogous

#257CA1 #253EA1 #4A25A1

triadic

#253EA1 #A1253E #3EA125

tetradic

#253EA1 #A1257C #A18825 #25A14A

square

#253EA1 #A1257C #A18825 #25A14A

split-complementary

#253EA1 #A14A25 #7CA125

monochromatic

#0E183D #1A2B6F #253EA1 #3353D0 #657DDC

Accessibility & contrast

On white

9.20

#253EA1 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.28

#253EA1 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #253EA1

9.20:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##253EA1	#FFFFFF	#000000	##FFFFFF
##253EA1	1.00	9.20	2.28	9.20
#FFFFFF	9.20	1.00	21.00	1.00
#000000	2.28	21.00	1.00	21.00
##FFFFFF	9.20	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004EA4

Deuteranopia (green-blind)

#00429F

Tritanopia (blue-blind)

#005769

Achromatopsia (no color)

#484848

Design tokens & code

CSS

--color: #253ea1;
/* rgb */ color: rgb(37, 62, 161);
/* oklch */ color: oklch(41.1% 0.163 267.6);

Tailwind

colors: {
  custom: {
    50: '#7373be',
    500: '#253ea1',
    950: '#000000',
  },
}

SCSS

$custom: #253ea1;
$custom-light: #7373be;
$custom-dark: #000000;

JSON

{
  "hex": "#253ea1",
  "rgb": {
    "r": 37,
    "g": 62,
    "b": 161
  },
  "hsl": {
    "h": 227.903,
    "s": 62.626,
    "l": 38.824
  },
  "oklch": {
    "l": 0.41058,
    "c": 0.16276,
    "h": 267.6
  },
  "luminance": 0.06412
}

Semantic roles & 50–950 ramp

primary

#253EA1

secondary

#C1AE61

accent

#C542E6

background

#F7F6FB

surface

#EEECF7

border

#C9C7D0

text

#090812

muted

#7B7B81

Preview Lab

Preview with #253EA1

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

Preview Lab → · Contrast checker → · Palette generator →