#253AB2#253AB2

#253AB2 is a dark, vivid blue. Relative luminance 0.066; OKLCH L 41.9% C 0.190 H 268.5°. Best body text is #FFFFFF at 9.03:1 contrast (WCAG AA passes).

Color values

HEX	#253AB2
RGB	rgb(37, 58, 178)
HSL	hsl(231, 66%, 42%)
HSV	hsv(231, 79%, 70%)
CMYK	cmyk(79.2%, 67.4%, 0%, 30.2%)
CIE-LAB	lab(30.96, 36.06, -65.60)
CIE-LCH	lch(30.96, 74.86, 298.79°)
OKLab	oklab(41.92% -0.0051 -0.1899)
OKLCH	oklch(41.92% 0.19 268.5)
XYZ	xyz(10.3091, 6.6326, 42.8477)
Luminance	0.0663 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#253AB2 #B29D25

analogous

#2580B2 #253AB2 #5725B2

triadic

#253AB2 #B2253A #3AB225

tetradic

#253AB2 #B22580 #B29D25 #25B257

square

#253AB2 #B22580 #B29D25 #25B257

split-complementary

#253AB2 #B25725 #80B225

monochromatic

#10194D #1A297F #253AB2 #3D54D7 #7081E1

Accessibility & contrast

On white

9.03

#253AB2 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.33

#253AB2 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #253AB2

9.03:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##253AB2	#FFFFFF	#000000	##FFFFFF
##253AB2	1.00	9.03	2.33	9.03
#FFFFFF	9.03	1.00	21.00	1.00
#000000	2.33	21.00	1.00	21.00
##FFFFFF	9.03	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0050B6

Deuteranopia (green-blind)

#0042B0

Tritanopia (blue-blind)

#005B71

Achromatopsia (no color)

#494949

Design tokens & code

CSS

--color: #253ab2;
/* rgb */ color: rgb(37, 58, 178);
/* oklch */ color: oklch(41.9% 0.190 268.5);

Tailwind

colors: {
  custom: {
    50: '#7870ca',
    500: '#253ab2',
    950: '#000000',
  },
}

SCSS

$custom: #253ab2;
$custom-light: #7870ca;
$custom-dark: #000000;

JSON

{
  "hex": "#253ab2",
  "rgb": {
    "r": 37,
    "g": 58,
    "b": 178
  },
  "hsl": {
    "h": 231.064,
    "s": 65.581,
    "l": 42.157
  },
  "oklch": {
    "l": 0.41918,
    "c": 0.19002,
    "h": 268.5
  },
  "luminance": 0.06634
}

Semantic roles & 50–950 ramp

primary

#253AB2

secondary

#C8BA6B

accent

#CF3FE9

background

#F8F6FC

surface

#EFECF9

border

#CAC7D2

text

#0B0713

muted

#7C7A82

Preview Lab

Preview with #253AB2

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

Preview Lab → · Contrast checker → · Palette generator →