#2519B3#2519B3

#2519B3 is a dark, highly saturated blue. Relative luminance 0.043; OKLCH L 37.6% C 0.221 H 271.5°. Best body text is #FFFFFF at 11.24:1 contrast (WCAG AA passes).

Color values

HEX#2519B3
RGBrgb(37, 25, 179)
HSLhsl(245, 75%, 40%)
HSVhsv(245, 86%, 70%)
CMYKcmyk(79.3%, 86%, 0%, 29.8%)
CIE-LABlab(24.77, 54.20, -76.43)
CIE-LCHlch(24.77, 93.70, 305.34°)
OKLaboklab(37.57% 0.0058 -0.2211)
OKLCHoklch(37.57% 0.221 271.5)
XYZxyz(9.2445, 4.3422, 42.9900)
Luminance0.0434 (WCAG relative)
Temperaturecool
Familyblue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#2519B3 #A7B319
analogous
#195AB3 #2519B3 #7219B3
triadic
#2519B3 #B32519 #19B325
tetradic
#2519B3 #B3195A #A7B319 #19B372
square
#2519B3 #B3195A #A7B319 #19B372
split-complementary
#2519B3 #B37219 #5AB319
monochromatic
#0F0A48 #1A127D #2519B3 #3728E1 #695EE8

Accessibility & contrast

On white

11.24
#2519B3 on #FFFFFF
AA ✓AA large ✓AAA ✓

On black

1.87
#2519B3 on #000000
AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2519B3
11.24:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##2519B3#FFFFFF#000000##FFFFFF
##2519B31.0011.241.8711.24
#FFFFFF11.241.0021.001.00
#0000001.8721.001.0021.00
##FFFFFF11.241.0021.001.00

Color blindness preview

Protanopia (red-blind)
#0042B7
Deuteranopia (green-blind)
#0033B1
Tritanopia (blue-blind)
#004D6A
Achromatopsia (no color)
#3B3B3B

Design tokens & code

CSS
--color: #2519b3;
/* rgb */ color: rgb(37, 25, 179);
/* oklch */ color: oklch(37.6% 0.221 271.5);
Tailwind
colors: {
  custom: {
    50: '#7b5ccb',
    500: '#2519b3',
    950: '#000000',
  },
}
SCSS
$custom: #2519b3;
$custom-light: #7b5ccb;
$custom-dark: #000000;
JSON
{
  "hex": "#2519b3",
  "rgb": {
    "r": 37,
    "g": 25,
    "b": 179
  },
  "hsl": {
    "h": 244.675,
    "s": 75.49,
    "l": 40
  },
  "oklch": {
    "l": 0.37569,
    "c": 0.22114,
    "h": 271.5
  },
  "luminance": 0.04343
}

Semantic roles & 50–950 ramp

primary
#2519B3
secondary
#C4CC5B
accent
#F236E3
background
#F8F5FC
surface
#F0E9F9
border
#CBC5D2
text
#0B0414
muted
#7C7982

Preview Lab

Preview with #2519B3

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

Preview Lab → · Contrast checker → · Palette generator →

#2519B3 Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva