#253EA3#253EA3

#253EA3 is a dark, vivid blue. Relative luminance 0.065; OKLCH L 41.2% C 0.165 H 267.6°. Best body text is #FFFFFF at 9.14:1 contrast (WCAG AA passes).

Color values

HEX	#253EA3
RGB	rgb(37, 62, 163)
HSL	hsl(228, 63%, 39%)
HSV	hsv(228, 77%, 64%)
CMYK	cmyk(77.3%, 62%, 0%, 36.1%)
CIE-LAB	lab(30.60, 27.84, -57.20)
CIE-LCH	lch(30.60, 63.62, 295.95°)
OKLab	oklab(41.24% -0.0069 -0.1653)
OKLCH	oklch(41.24% 0.165 267.6)
XYZ	xyz(9.0941, 6.4819, 35.4151)
Luminance	0.0648 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#253EA3 #A38A25

analogous

#257DA3 #253EA3 #4B25A3

triadic

#253EA3 #A3253E #3EA325

tetradic

#253EA3 #A3257D #A38A25 #25A34B

square

#253EA3 #A3257D #A38A25 #25A34B

split-complementary

#253EA3 #A34B25 #7DA325

monochromatic

#0E183F #1A2B71 #253EA3 #3453D1 #667EDC

Accessibility & contrast

On white

9.14

#253EA3 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.30

#253EA3 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #253EA3

9.14:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##253EA3	#FFFFFF	#000000	##FFFFFF
##253EA3	1.00	9.14	2.30	9.14
#FFFFFF	9.14	1.00	21.00	1.00
#000000	2.30	21.00	1.00	21.00
##FFFFFF	9.14	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004EA6

Deuteranopia (green-blind)

#0042A1

Tritanopia (blue-blind)

#00586A

Achromatopsia (no color)

#484848

Design tokens & code

CSS

--color: #253ea3;
/* rgb */ color: rgb(37, 62, 163);
/* oklch */ color: oklch(41.2% 0.165 267.6);

Tailwind

colors: {
  custom: {
    50: '#7473bf',
    500: '#253ea3',
    950: '#000000',
  },
}

SCSS

$custom: #253ea3;
$custom-light: #7473bf;
$custom-dark: #000000;

JSON

{
  "hex": "#253ea3",
  "rgb": {
    "r": 37,
    "g": 62,
    "b": 163
  },
  "hsl": {
    "h": 228.095,
    "s": 63,
    "l": 39.216
  },
  "oklch": {
    "l": 0.41238,
    "c": 0.16548,
    "h": 267.6
  },
  "luminance": 0.06483
}

Semantic roles & 50–950 ramp

primary

#253EA3

secondary

#C2AF62

accent

#C542E6

background

#F7F6FB

surface

#EEECF7

border

#C9C7D0

text

#090812

muted

#7B7B81

Preview Lab

Preview with #253EA3

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

Preview Lab → · Contrast checker → · Palette generator →