#253FA3#253FA3

#253FA3 is a dark, vivid blue. Relative luminance 0.066; OKLCH L 41.4% C 0.164 H 267.4°. Best body text is #FFFFFF at 9.06:1 contrast (WCAG AA passes).

Color values

HEX	#253FA3
RGB	rgb(37, 63, 163)
HSL	hsl(228, 63%, 39%)
HSV	hsv(228, 77%, 64%)
CMYK	cmyk(77.3%, 61.3%, 0%, 36.1%)
CIE-LAB	lab(30.86, 27.17, -56.78)
CIE-LCH	lch(30.86, 62.94, 295.57°)
OKLab	oklab(41.43% -0.0075 -0.1641)
OKLCH	oklch(41.43% 0.164 267.4)
XYZ	xyz(9.1490, 6.5917, 35.4334)
Luminance	0.0659 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#253FA3 #A38925

analogous

#257EA3 #253FA3 #4A25A3

triadic

#253FA3 #A3253F #3FA325

tetradic

#253FA3 #A3257E #A38925 #25A34A

square

#253FA3 #A3257E #A38925 #25A34A

split-complementary

#253FA3 #A34A25 #7EA325

monochromatic

#0E183F #1A2C71 #253FA3 #3455D1 #667EDC

Accessibility & contrast

On white

9.06

#253FA3 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.32

#253FA3 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #253FA3

9.06:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##253FA3	#FFFFFF	#000000	##FFFFFF
##253FA3	1.00	9.06	2.32	9.06
#FFFFFF	9.06	1.00	21.00	1.00
#000000	2.32	21.00	1.00	21.00
##FFFFFF	9.06	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004FA6

Deuteranopia (green-blind)

#0043A1

Tritanopia (blue-blind)

#00596B

Achromatopsia (no color)

#494949

Design tokens & code

CSS

--color: #253fa3;
/* rgb */ color: rgb(37, 63, 163);
/* oklch */ color: oklch(41.4% 0.164 267.4);

Tailwind

colors: {
  custom: {
    50: '#7473bf',
    500: '#253fa3',
    950: '#000000',
  },
}

SCSS

$custom: #253fa3;
$custom-light: #7473bf;
$custom-dark: #000000;

JSON

{
  "hex": "#253fa3",
  "rgb": {
    "r": 37,
    "g": 63,
    "b": 163
  },
  "hsl": {
    "h": 227.619,
    "s": 63,
    "l": 39.216
  },
  "oklch": {
    "l": 0.41433,
    "c": 0.16424,
    "h": 267.4
  },
  "luminance": 0.06593
}

Semantic roles & 50–950 ramp

primary

#253FA3

secondary

#C2AE62

accent

#C442E6

background

#F7F7FB

surface

#EEEDF7

border

#C9C8D0

text

#090812

muted

#7B7B81

Preview Lab

Preview with #253FA3

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

Preview Lab → · Contrast checker → · Palette generator →