#253B9E#253B9E

#253B9E is a dark, vivid blue. Relative luminance 0.060; OKLCH L 40.2% C 0.162 H 268.3°. Best body text is #FFFFFF at 9.55:1 contrast (WCAG AA passes).

Color values

HEX	#253B9E
RGB	rgb(37, 59, 158)
HSL	hsl(229, 62%, 38%)
HSV	hsv(229, 77%, 62%)
CMYK	cmyk(76.6%, 62.7%, 0%, 38%)
CIE-LAB	lab(29.38, 27.94, -56.16)
CIE-LCH	lch(29.38, 62.73, 296.45°)
OKLab	oklab(40.21% -0.0048 -0.1623)
OKLCH	oklch(40.21% 0.162 268.3)
XYZ	xyz(8.4963, 5.9889, 33.0493)
Luminance	0.0599 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#253B9E #9E8825

analogous

#25779E #253B9E #4B259E

triadic

#253B9E #9E253B #3B9E25

tetradic

#253B9E #9E2577 #9E8825 #259E4B

square

#253B9E #9E2577 #9E8825 #259E4B

split-complementary

#253B9E #9E4B25 #779E25

monochromatic

#0E163B #19286C #253B9E #314ECF #6379DA

Accessibility & contrast

On white

9.55

#253B9E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.20

#253B9E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #253B9E

9.55:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##253B9E	#FFFFFF	#000000	##FFFFFF
##253B9E	1.00	9.55	2.20	9.55
#FFFFFF	9.55	1.00	21.00	1.00
#000000	2.20	21.00	1.00	21.00
##FFFFFF	9.55	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004BA1

Deuteranopia (green-blind)

#00409C

Tritanopia (blue-blind)

#005466

Achromatopsia (no color)

#454545

Design tokens & code

CSS

--color: #253b9e;
/* rgb */ color: rgb(37, 59, 158);
/* oklch */ color: oklch(40.2% 0.162 268.3);

Tailwind

colors: {
  custom: {
    50: '#7370bc',
    500: '#253b9e',
    950: '#000000',
  },
}

SCSS

$custom: #253b9e;
$custom-light: #7370bc;
$custom-dark: #000000;

JSON

{
  "hex": "#253b9e",
  "rgb": {
    "r": 37,
    "g": 59,
    "b": 158
  },
  "hsl": {
    "h": 229.091,
    "s": 62.051,
    "l": 38.235
  },
  "oklch": {
    "l": 0.40206,
    "c": 0.16238,
    "h": 268.3
  },
  "luminance": 0.0599
}

Semantic roles & 50–950 ramp

primary

#253B9E

secondary

#C0AE5F

accent

#C843E5

background

#F7F6FB

surface

#EEECF6

border

#C9C7D0

text

#090712

muted

#7B7A81

Preview Lab

Preview with #253B9E

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

Preview Lab → · Contrast checker → · Palette generator →