#253B9C#253B9C

#253B9C is a dark, vivid blue. Relative luminance 0.059; OKLCH L 40.0% C 0.160 H 268.3°. Best body text is #FFFFFF at 9.61:1 contrast (WCAG AA passes).

Color values

HEX	#253B9C
RGB	rgb(37, 59, 156)
HSL	hsl(229, 62%, 38%)
HSV	hsv(229, 76%, 61%)
CMYK	cmyk(76.3%, 62.2%, 0%, 38.8%)
CIE-LAB	lab(29.21, 27.18, -55.23)
CIE-LCH	lch(29.21, 61.55, 296.20°)
OKLab	oklab(40.02% -0.0048 -0.1596)
OKLCH	oklch(40.02% 0.16 268.3)
XYZ	xyz(8.3256, 5.9206, 32.1501)
Luminance	0.0592 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#253B9C #9C8625

analogous

#25769C #253B9C #4B259C

triadic

#253B9C #9C253B #3B9C25

tetradic

#253B9C #9C2576 #9C8625 #259C4B

square

#253B9C #9C2576 #9C8625 #259C4B

split-complementary

#253B9C #9C4B25 #769C25

monochromatic

#0E1639 #19286B #253B9C #314ECD #6278DA

Accessibility & contrast

On white

9.61

#253B9C on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.18

#253B9C on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #253B9C

9.61:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##253B9C	#FFFFFF	#000000	##FFFFFF
##253B9C	1.00	9.61	2.18	9.61
#FFFFFF	9.61	1.00	21.00	1.00
#000000	2.18	21.00	1.00	21.00
##FFFFFF	9.61	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004B9F

Deuteranopia (green-blind)

#003F9A

Tritanopia (blue-blind)

#005465

Achromatopsia (no color)

#454545

Design tokens & code

CSS

--color: #253b9c;
/* rgb */ color: rgb(37, 59, 156);
/* oklch */ color: oklch(40.0% 0.160 268.3);

Tailwind

colors: {
  custom: {
    50: '#7270ba',
    500: '#253b9c',
    950: '#000000',
  },
}

SCSS

$custom: #253b9c;
$custom-light: #7270ba;
$custom-dark: #000000;

JSON

{
  "hex": "#253b9c",
  "rgb": {
    "r": 37,
    "g": 59,
    "b": 156
  },
  "hsl": {
    "h": 228.908,
    "s": 61.658,
    "l": 37.843
  },
  "oklch": {
    "l": 0.40024,
    "c": 0.15965,
    "h": 268.3
  },
  "luminance": 0.05922
}

Semantic roles & 50–950 ramp

primary

#253B9C

secondary

#BFAD5E

accent

#C743E5

background

#F7F6FB

surface

#EDECF6

border

#C8C7D0

text

#090712

muted

#7B7A81

Preview Lab

Preview with #253B9C

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

Preview Lab → · Contrast checker → · Palette generator →