#253F84#253F84

#253F84 is a dark, vivid blue. Relative luminance 0.056; OKLCH L 38.8% C 0.120 H 265.6°. Best body text is #FFFFFF at 9.89:1 contrast (WCAG AA passes).

Color values

HEX	#253F84
RGB	rgb(37, 63, 132)
HSL	hsl(224, 56%, 33%)
HSV	hsv(224, 72%, 52%)
CMYK	cmyk(72%, 52.3%, 0%, 48.2%)
CIE-LAB	lab(28.42, 15.14, -41.76)
CIE-LCH	lch(28.42, 44.42, 289.93°)
OKLab	oklab(38.83% -0.0093 -0.1199)
OKLCH	oklch(38.83% 0.12 265.6)
XYZ	xyz(6.7039, 5.6136, 22.5556)
Luminance	0.0561 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#253F84 #846A25

analogous

#256E84 #253F84 #3A2584

triadic

#253F84 #84253F #3F8425

tetradic

#253F84 #84256E #846A25 #25843A

square

#253F84 #84256E #846A25 #25843A

split-complementary

#253F84 #843A25 #6E8425

monochromatic

#0A1124 #182854 #253F84 #3256B4 #5476CF

Accessibility & contrast

On white

9.89

#253F84 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.12

#253F84 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #253F84

9.89:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##253F84	#FFFFFF	#000000	##FFFFFF
##253F84	1.00	9.89	2.12	9.89
#FFFFFF	9.89	1.00	21.00	1.00
#000000	2.12	21.00	1.00	21.00
##FFFFFF	9.89	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#164886

Deuteranopia (green-blind)

#003F83

Tritanopia (blue-blind)

#004F5B

Achromatopsia (no color)

#434343

Design tokens & code

CSS

--color: #253f84;
/* rgb */ color: rgb(37, 63, 132);
/* oklch */ color: oklch(38.8% 0.120 265.6);

Tailwind

colors: {
  custom: {
    50: '#6c73a8',
    500: '#253f84',
    950: '#000000',
  },
}

SCSS

$custom: #253f84;
$custom-light: #6c73a8;
$custom-dark: #000000;

JSON

{
  "hex": "#253f84",
  "rgb": {
    "r": 37,
    "g": 63,
    "b": 132
  },
  "hsl": {
    "h": 223.579,
    "s": 56.213,
    "l": 33.137
  },
  "oklch": {
    "l": 0.38829,
    "c": 0.12029,
    "h": 265.6
  },
  "luminance": 0.05614
}

Semantic roles & 50–950 ramp

primary

#253F84

secondary

#B39951

accent

#B648E0

background

#F6F6FA

surface

#ECECF4

border

#C7C7CE

text

#080810

muted

#7A7B7F

Preview Lab

Preview with #253F84

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

Preview Lab → · Contrast checker → · Palette generator →