#253CB1#253CB1

#253CB1 is a dark, vivid blue. Relative luminance 0.068; OKLCH L 42.2% C 0.186 H 268.1°. Best body text is #FFFFFF at 8.90:1 contrast (WCAG AA passes).

Color values

HEX	#253CB1
RGB	rgb(37, 60, 177)
HSL	hsl(230, 65%, 42%)
HSV	hsv(230, 79%, 69%)
CMYK	cmyk(79.1%, 66.1%, 0%, 30.6%)
CIE-LAB	lab(31.34, 34.41, -64.37)
CIE-LCH	lch(31.34, 72.99, 298.12°)
OKLab	oklab(42.17% -0.0061 -0.1863)
OKLCH	oklch(42.17% 0.186 268.1)
XYZ	xyz(10.3119, 6.7982, 42.3552)
Luminance	0.0680 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#253CB1 #B19A25

analogous

#2582B1 #253CB1 #5425B1

triadic

#253CB1 #B1253C #3CB125

tetradic

#253CB1 #B12582 #B19A25 #25B154

square

#253CB1 #B12582 #B19A25 #25B154

split-complementary

#253CB1 #B15425 #82B125

monochromatic

#101A4C #1A2B7E #253CB1 #3D56D6 #6F82E1

Accessibility & contrast

On white

8.90

#253CB1 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.36

#253CB1 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #253CB1

8.90:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##253CB1	#FFFFFF	#000000	##FFFFFF
##253CB1	1.00	8.90	2.36	8.90
#FFFFFF	8.90	1.00	21.00	1.00
#000000	2.36	21.00	1.00	21.00
##FFFFFF	8.90	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0051B5

Deuteranopia (green-blind)

#0043AF

Tritanopia (blue-blind)

#005B71

Achromatopsia (no color)

#4A4A4A

Design tokens & code

CSS

--color: #253cb1;
/* rgb */ color: rgb(37, 60, 177);
/* oklch */ color: oklch(42.2% 0.186 268.1);

Tailwind

colors: {
  custom: {
    50: '#7771c9',
    500: '#253cb1',
    950: '#000000',
  },
}

SCSS

$custom: #253cb1;
$custom-light: #7771c9;
$custom-dark: #000000;

JSON

{
  "hex": "#253cb1",
  "rgb": {
    "r": 37,
    "g": 60,
    "b": 177
  },
  "hsl": {
    "h": 230.143,
    "s": 65.421,
    "l": 41.961
  },
  "oklch": {
    "l": 0.42172,
    "c": 0.18644,
    "h": 268.1
  },
  "luminance": 0.06799
}

Semantic roles & 50–950 ramp

primary

#253CB1

secondary

#C8B86A

accent

#CD3FE8

background

#F8F6FC

surface

#EFECF8

border

#CAC7D1

text

#0A0713

muted

#7C7A82

Preview Lab

Preview with #253CB1

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

Preview Lab → · Contrast checker → · Palette generator →