#2523A4#2523A4

#2523A4 is a dark, vivid blue. Relative luminance 0.043; OKLCH L 36.9% C 0.196 H 272.0°. Best body text is #FFFFFF at 11.32:1 contrast (WCAG AA passes).

Color values

HEX	#2523A4
RGB	rgb(37, 35, 164)
HSL	hsl(241, 65%, 39%)
HSV	hsv(241, 79%, 64%)
CMYK	cmyk(77.4%, 78.7%, 0%, 35.7%)
CIE-LAB	lab(24.56, 44.87, -67.74)
CIE-LCH	lch(24.56, 81.25, 303.52°)
OKLab	oklab(36.9% 0.0068 -0.1961)
OKLCH	oklch(36.9% 0.196 272)
XYZ	xyz(8.0626, 4.2748, 35.5150)
Luminance	0.0428 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2523A4 #A2A423

analogous

#2362A4 #2523A4 #6623A4

triadic

#2523A4 #A42523 #23A425

tetradic

#2523A4 #A42362 #A2A423 #23A466

square

#2523A4 #A42362 #A2A423 #23A466

split-complementary

#2523A4 #A46623 #62A423

monochromatic

#0E0D3F #1A1872 #2523A4 #3431D3 #6564DE

Accessibility & contrast

On white

11.32

#2523A4 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.86

#2523A4 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2523A4

11.32:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2523A4	#FFFFFF	#000000	##FFFFFF
##2523A4	1.00	11.32	1.86	11.32
#FFFFFF	11.32	1.00	21.00	1.00
#000000	1.86	21.00	1.00	21.00
##FFFFFF	11.32	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0041A8

Deuteranopia (green-blind)

#0034A2

Tritanopia (blue-blind)

#004A63

Achromatopsia (no color)

#3A3A3A

Design tokens & code

CSS

--color: #2523a4;
/* rgb */ color: rgb(37, 35, 164);
/* oklch */ color: oklch(36.9% 0.196 272.0);

Tailwind

colors: {
  custom: {
    50: '#7761c0',
    500: '#2523a4',
    950: '#000000',
  },
}

SCSS

$custom: #2523a4;
$custom-light: #7761c0;
$custom-dark: #000000;

JSON

{
  "hex": "#2523a4",
  "rgb": {
    "r": 37,
    "g": 35,
    "b": 164
  },
  "hsl": {
    "h": 240.93,
    "s": 64.824,
    "l": 39.02
  },
  "oklch": {
    "l": 0.36902,
    "c": 0.1962,
    "h": 272
  },
  "luminance": 0.04276
}

Semantic roles & 50–950 ramp

primary

#2523A4

secondary

#C2C360

accent

#E840E5

background

#F7F5FC

surface

#EEEAF8

border

#C9C6D1

text

#0A0512

muted

#7C7981

Preview Lab

Preview with #2523A4

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

Preview Lab → · Contrast checker → · Palette generator →