#243571#243571

#243571 is a dark, moderate blue. Relative luminance 0.041; OKLCH L 35.1% C 0.106 H 268.6°. Best body text is #FFFFFF at 11.52:1 contrast (WCAG AA passes).

Color values

HEX#243571
RGBrgb(36, 53, 113)
HSLhsl(227, 52%, 29%)
HSVhsv(227, 68%, 44%)
CMYKcmyk(68.1%, 53.1%, 0%, 55.7%)
CIE-LABlab(24.04, 14.51, -36.83)
CIE-LCHlch(24.04, 39.59, 291.50°)
OKLaboklab(35.05% -0.0026 -0.1056)
OKLCHoklch(35.05% 0.106 268.6)
XYZxyz(4.9803, 4.1131, 16.1510)
Luminance0.0411 (WCAG relative)
Temperaturecool
Familyblue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#243571 #716024
analogous
#245C71 #243571 #3A2471
triadic
#243571 #712435 #357124
tetradic
#243571 #71245C #716024 #24713A
square
#243571 #71245C #716024 #24713A
split-complementary
#243571 #713A24 #5C7124
monochromatic
#070B17 #151F43 #243571 #334B9F #4A65C5

Accessibility & contrast

On white

11.52
#243571 on #FFFFFF
AA ✓AA large ✓AAA ✓

On black

1.82
#243571 on #000000
AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #243571
11.52:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##243571#FFFFFF#000000##FFFFFF
##2435711.0011.521.8211.52
#FFFFFF11.521.0021.001.00
#0000001.8221.001.0021.00
##FFFFFF11.521.0021.001.00

Color blindness preview

Protanopia (red-blind)
#133D73
Deuteranopia (green-blind)
#003670
Tritanopia (blue-blind)
#00434D
Achromatopsia (no color)
#393939

Design tokens & code

CSS
--color: #243571;
/* rgb */ color: rgb(36, 53, 113);
/* oklch */ color: oklch(35.1% 0.106 268.6);
Tailwind
colors: {
  custom: {
    50: '#686b9a',
    500: '#243571',
    950: '#000000',
  },
}
SCSS
$custom: #243571;
$custom-light: #686b9a;
$custom-dark: #000000;
JSON
{
  "hex": "#243571",
  "rgb": {
    "r": 36,
    "g": 53,
    "b": 113
  },
  "hsl": {
    "h": 226.753,
    "s": 51.678,
    "l": 29.216
  },
  "oklch": {
    "l": 0.35052,
    "c": 0.10565,
    "h": 268.6
  },
  "luminance": 0.04114
}

Semantic roles & 50–950 ramp

primary
#243571
secondary
#A4914D
accent
#BC4DDB
background
#F6F6F9
surface
#EBEBF2
border
#C6C6CC
text
#07060E
muted
#7A7A7E

Preview Lab

Preview with #243571

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

Preview Lab → · Contrast checker → · Palette generator →

#243571 Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva