#131757#131757

#131757 is a dark, moderate blue. Relative luminance 0.014; OKLCH L 25.3% C 0.113 H 272.3°. Best body text is #FFFFFF at 16.31:1 contrast (WCAG AA passes).

Color values

HEX	#131757
RGB	rgb(19, 23, 87)
HSL	hsl(236, 64%, 21%)
HSV	hsv(236, 78%, 34%)
CMYK	cmyk(78.2%, 73.6%, 0%, 65.9%)
CIE-LAB	lab(12.22, 22.89, -39.02)
CIE-LCH	lch(12.22, 45.24, 300.40°)
OKLab	oklab(25.26% 0.0046 -0.1128)
OKLCH	oklch(25.26% 0.113 272.3)
XYZ	xyz(2.2947, 1.4391, 9.1718)
Luminance	0.0144 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#131757 #575313

analogous

#133957 #131757 #311357

triadic

#131757 #571317 #175713

tetradic

#131757 #571339 #575313 #135731

square

#131757 #571339 #575313 #135731

split-complementary

#131757 #573113 #395713

monochromatic

#050719 #080A25 #131757 #1E2489 #2932BB

Accessibility & contrast

On white

16.31

#131757 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.29

#131757 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #131757

16.31:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##131757	#FFFFFF	#000000	##FFFFFF
##131757	1.00	16.31	1.29	16.31
#FFFFFF	16.31	1.00	21.00	1.00
#000000	1.29	21.00	1.00	21.00
##FFFFFF	16.31	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#002359

Deuteranopia (green-blind)

#001D56

Tritanopia (blue-blind)

#002834

Achromatopsia (no color)

#202020

Design tokens & code

CSS

--color: #131757;
/* rgb */ color: rgb(19, 23, 87);
/* oklch */ color: oklch(25.3% 0.113 272.3);

Tailwind

colors: {
  custom: {
    50: '#5d5487',
    500: '#131757',
    950: '#000000',
  },
}

SCSS

$custom: #131757;
$custom-light: #5d5487;
$custom-dark: #000000;

JSON

{
  "hex": "#131757",
  "rgb": {
    "r": 19,
    "g": 23,
    "b": 87
  },
  "hsl": {
    "h": 236.471,
    "s": 64.151,
    "l": 20.784
  },
  "oklch": {
    "l": 0.25264,
    "c": 0.11293,
    "h": 272.3
  },
  "luminance": 0.01439
}

Semantic roles & 50–950 ramp

primary

#131757

secondary

#8F8A36

accent

#DD41E7

background

#F5F4F8

surface

#E9E7EF

border

#C5C3CA

text

#05020B

muted

#79787C

Preview Lab

Preview with #131757

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

Preview Lab → · Contrast checker → · Palette generator →