#253EA7#253EA7

#253EA7 is a dark, vivid blue. Relative luminance 0.066; OKLCH L 41.6% C 0.171 H 267.7°. Best body text is #FFFFFF at 9.03:1 contrast (WCAG AA passes).

Color values

HEX	#253EA7
RGB	rgb(37, 62, 167)
HSL	hsl(228, 64%, 40%)
HSV	hsv(228, 78%, 65%)
CMYK	cmyk(77.8%, 62.9%, 0%, 34.5%)
CIE-LAB	lab(30.94, 29.36, -59.05)
CIE-LCH	lch(30.94, 65.94, 296.44°)
OKLab	oklab(41.6% -0.0069 -0.1707)
OKLCH	oklch(41.6% 0.171 267.7)
XYZ	xyz(9.4582, 6.6275, 37.3325)
Luminance	0.0663 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#253EA7 #A78E25

analogous

#257FA7 #253EA7 #4D25A7

triadic

#253EA7 #A7253E #3EA725

tetradic

#253EA7 #A7257F #A78E25 #25A74D

square

#253EA7 #A7257F #A78E25 #25A74D

split-complementary

#253EA7 #A74D25 #7FA725

monochromatic

#0F1943 #1A2B75 #253EA7 #3755D3 #697FDE

Accessibility & contrast

On white

9.03

#253EA7 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.33

#253EA7 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #253EA7

9.03:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##253EA7	#FFFFFF	#000000	##FFFFFF
##253EA7	1.00	9.03	2.33	9.03
#FFFFFF	9.03	1.00	21.00	1.00
#000000	2.33	21.00	1.00	21.00
##FFFFFF	9.03	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004FAA

Deuteranopia (green-blind)

#0043A5

Tritanopia (blue-blind)

#00596C

Achromatopsia (no color)

#494949

Design tokens & code

CSS

--color: #253ea7;
/* rgb */ color: rgb(37, 62, 167);
/* oklch */ color: oklch(41.6% 0.171 267.7);

Tailwind

colors: {
  custom: {
    50: '#7573c2',
    500: '#253ea7',
    950: '#000000',
  },
}

SCSS

$custom: #253ea7;
$custom-light: #7573c2;
$custom-dark: #000000;

JSON

{
  "hex": "#253ea7",
  "rgb": {
    "r": 37,
    "g": 62,
    "b": 167
  },
  "hsl": {
    "h": 228.462,
    "s": 63.725,
    "l": 40
  },
  "oklch": {
    "l": 0.41602,
    "c": 0.17087,
    "h": 267.7
  },
  "luminance": 0.06629
}

Semantic roles & 50–950 ramp

primary

#253EA7

secondary

#C4B164

accent

#C741E7

background

#F7F6FC

surface

#EEECF8

border

#C9C7D1

text

#0A0812

muted

#7C7B81

Preview Lab

Preview with #253EA7

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

Preview Lab → · Contrast checker → · Palette generator →