#253C9B#253C9B

#253C9B is a dark, vivid blue. Relative luminance 0.060; OKLCH L 40.1% C 0.157 H 268.0°. Best body text is #FFFFFF at 9.55:1 contrast (WCAG AA passes).

Color values

HEX	#253C9B
RGB	rgb(37, 60, 155)
HSL	hsl(228, 61%, 38%)
HSV	hsv(228, 76%, 61%)
CMYK	cmyk(76.1%, 61.3%, 0%, 39.2%)
CIE-LAB	lab(29.39, 26.13, -54.33)
CIE-LCH	lch(29.39, 60.29, 295.68°)
OKLab	oklab(40.13% -0.0055 -0.1569)
OKLCH	oklch(40.13% 0.157 268)
XYZ	xyz(8.2932, 5.9907, 31.7232)
Luminance	0.0599 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#253C9B #9B8425

analogous

#25779B #253C9B #49259B

triadic

#253C9B #9B253C #3C9B25

tetradic

#253C9B #9B2577 #9B8425 #259B49

square

#253C9B #9B2577 #9B8425 #259B49

split-complementary

#253C9B #9B4925 #779B25

monochromatic

#0D1638 #19296A #253C9B #314FCC #6179D9

Accessibility & contrast

On white

9.55

#253C9B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.20

#253C9B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #253C9B

9.55:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##253C9B	#FFFFFF	#000000	##FFFFFF
##253C9B	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)

#004B9E

Deuteranopia (green-blind)

#004099

Tritanopia (blue-blind)

#005465

Achromatopsia (no color)

#454545

Design tokens & code

CSS

--color: #253c9b;
/* rgb */ color: rgb(37, 60, 155);
/* oklch */ color: oklch(40.1% 0.157 268.0);

Tailwind

colors: {
  custom: {
    50: '#7271b9',
    500: '#253c9b',
    950: '#000000',
  },
}

SCSS

$custom: #253c9b;
$custom-light: #7271b9;
$custom-dark: #000000;

JSON

{
  "hex": "#253c9b",
  "rgb": {
    "r": 37,
    "g": 60,
    "b": 155
  },
  "hsl": {
    "h": 228.305,
    "s": 61.458,
    "l": 37.647
  },
  "oklch": {
    "l": 0.40129,
    "c": 0.15703,
    "h": 268
  },
  "luminance": 0.05992
}

Semantic roles & 50–950 ramp

primary

#253C9B

secondary

#BFAC5D

accent

#C543E5

background

#F7F6FB

surface

#EDECF6

border

#C8C7D0

text

#090712

muted

#7B7A81

Preview Lab

Preview with #253C9B

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

Preview Lab → · Contrast checker → · Palette generator →