#131257#131257

#131257 is a very dark, moderate blue. Relative luminance 0.013; OKLCH L 24.4% C 0.119 H 273.7°. Best body text is #FFFFFF at 16.78:1 contrast (WCAG AA passes).

Color values

HEX	#131257
RGB	rgb(19, 18, 87)
HSL	hsl(241, 66%, 21%)
HSV	hsv(241, 79%, 34%)
CMYK	cmyk(78.2%, 79.3%, 0%, 65.9%)
CIE-LAB	lab(10.99, 26.28, -41.05)
CIE-LCH	lch(10.99, 48.74, 302.62°)
OKLab	oklab(24.38% 0.0078 -0.1187)
OKLCH	oklch(24.38% 0.119 273.7)
XYZ	xyz(2.2046, 1.2590, 9.1418)
Luminance	0.0126 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#131257 #565712

analogous

#123357 #131257 #351257

triadic

#131257 #571312 #125713

tetradic

#131257 #571233 #565712 #125735

square

#131257 #571233 #565712 #125735

split-complementary

#131257 #573512 #335712

monochromatic

#060519 #080824 #131257 #1E1C8A #2927BC

Accessibility & contrast

On white

16.78

#131257 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.25

#131257 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #131257

16.78:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##131257	#FFFFFF	#000000	##FFFFFF
##131257	1.00	16.78	1.25	16.78
#FFFFFF	16.78	1.00	21.00	1.00
#000000	1.25	21.00	1.00	21.00
##FFFFFF	16.78	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#002159

Deuteranopia (green-blind)

#001A56

Tritanopia (blue-blind)

#002633

Achromatopsia (no color)

#1D1D1D

Design tokens & code

CSS

--color: #131257;
/* rgb */ color: rgb(19, 18, 87);
/* oklch */ color: oklch(24.4% 0.119 273.7);

Tailwind

colors: {
  custom: {
    50: '#5d5087',
    500: '#131257',
    950: '#000000',
  },
}

SCSS

$custom: #131257;
$custom-light: #5d5087;
$custom-dark: #000000;

JSON

{
  "hex": "#131257",
  "rgb": {
    "r": 19,
    "g": 18,
    "b": 87
  },
  "hsl": {
    "h": 240.87,
    "s": 65.714,
    "l": 20.588
  },
  "oklch": {
    "l": 0.24381,
    "c": 0.11899,
    "h": 273.7
  },
  "luminance": 0.01259
}

Semantic roles & 50–950 ramp

primary

#131257

secondary

#8E9035

accent

#E93FE6

background

#F5F4F8

surface

#EAE7F0

border

#C6C3CB

text

#05020B

muted

#79787C

Preview Lab

Preview with #131257

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

Preview Lab → · Contrast checker → · Palette generator →