#253C9E#253C9E

#253C9E is a dark, vivid blue. Relative luminance 0.061; OKLCH L 40.4% C 0.161 H 268.0°. Best body text is #FFFFFF at 9.46:1 contrast (WCAG AA passes).

Color values

HEX	#253C9E
RGB	rgb(37, 60, 158)
HSL	hsl(229, 62%, 38%)
HSV	hsv(229, 77%, 62%)
CMYK	cmyk(76.6%, 62%, 0%, 38%)
CIE-LAB	lab(29.65, 27.27, -55.73)
CIE-LCH	lch(29.65, 62.05, 296.07°)
OKLab	oklab(40.4% -0.0055 -0.161)
OKLCH	oklch(40.4% 0.161 268)
XYZ	xyz(8.5482, 6.0927, 33.0666)
Luminance	0.0609 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#253C9E #9E8725

analogous

#25789E #253C9E #4A259E

triadic

#253C9E #9E253C #3C9E25

tetradic

#253C9E #9E2578 #9E8725 #259E4A

square

#253C9E #9E2578 #9E8725 #259E4A

split-complementary

#253C9E #9E4A25 #789E25

monochromatic

#0E163B #19296C #253C9E #314FCF #637ADA

Accessibility & contrast

On white

9.46

#253C9E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.22

#253C9E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #253C9E

9.46:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##253C9E	#FFFFFF	#000000	##FFFFFF
##253C9E	1.00	9.46	2.22	9.46
#FFFFFF	9.46	1.00	21.00	1.00
#000000	2.22	21.00	1.00	21.00
##FFFFFF	9.46	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004CA1

Deuteranopia (green-blind)

#00409C

Tritanopia (blue-blind)

#005567

Achromatopsia (no color)

#464646

Design tokens & code

CSS

--color: #253c9e;
/* rgb */ color: rgb(37, 60, 158);
/* oklch */ color: oklch(40.4% 0.161 268.0);

Tailwind

colors: {
  custom: {
    50: '#7371bc',
    500: '#253c9e',
    950: '#000000',
  },
}

SCSS

$custom: #253c9e;
$custom-light: #7371bc;
$custom-dark: #000000;

JSON

{
  "hex": "#253c9e",
  "rgb": {
    "r": 37,
    "g": 60,
    "b": 158
  },
  "hsl": {
    "h": 228.595,
    "s": 62.051,
    "l": 38.235
  },
  "oklch": {
    "l": 0.40399,
    "c": 0.16114,
    "h": 268
  },
  "luminance": 0.06094
}

Semantic roles & 50–950 ramp

primary

#253C9E

secondary

#C0AD5F

accent

#C643E5

background

#F7F6FB

surface

#EEECF6

border

#C9C7D0

text

#090712

muted

#7B7A81

Preview Lab

Preview with #253C9E

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

Preview Lab → · Contrast checker → · Palette generator →