#131D55#131D55

#131D55 is a dark, moderate blue. Relative luminance 0.017; OKLCH L 26.3% C 0.102 H 270.1°. Best body text is #FFFFFF at 15.74:1 contrast (WCAG AA passes).

Color values

HEX	#131D55
RGB	rgb(19, 29, 85)
HSL	hsl(231, 63%, 20%)
HSV	hsv(231, 78%, 33%)
CMYK	cmyk(77.6%, 65.9%, 0%, 66.7%)
CIE-LAB	lab(13.67, 17.73, -35.29)
CIE-LCH	lch(13.67, 39.50, 296.67°)
OKLab	oklab(26.27% 0.0001 -0.1019)
OKLCH	oklch(26.27% 0.102 270.1)
XYZ	xyz(2.3471, 1.6728, 8.7918)
Luminance	0.0167 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#131D55 #554B13

analogous

#133E55 #131D55 #2A1355

triadic

#131D55 #55131D #1D5513

tetradic

#131D55 #55133E #554B13 #13552A

square

#131D55 #55133E #554B13 #13552A

split-complementary

#131D55 #552A13 #3E5513

monochromatic

#060919 #080C23 #131D55 #1E2E87 #293FB9

Accessibility & contrast

On white

15.74

#131D55 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.33

#131D55 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #131D55

15.74:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##131D55	#FFFFFF	#000000	##FFFFFF
##131D55	1.00	15.74	1.33	15.74
#FFFFFF	15.74	1.00	21.00	1.00
#000000	1.33	21.00	1.00	21.00
##FFFFFF	15.74	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#002657

Deuteranopia (green-blind)

#002054

Tritanopia (blue-blind)

#002B35

Achromatopsia (no color)

#232323

Design tokens & code

CSS

--color: #131d55;
/* rgb */ color: rgb(19, 29, 85);
/* oklch */ color: oklch(26.3% 0.102 270.1);

Tailwind

colors: {
  custom: {
    50: '#5c5885',
    500: '#131d55',
    950: '#000000',
  },
}

SCSS

$custom: #131d55;
$custom-light: #5c5885;
$custom-dark: #000000;

JSON

{
  "hex": "#131d55",
  "rgb": {
    "r": 19,
    "g": 29,
    "b": 85
  },
  "hsl": {
    "h": 230.909,
    "s": 63.462,
    "l": 20.392
  },
  "oklch": {
    "l": 0.26266,
    "c": 0.10187,
    "h": 270.1
  },
  "luminance": 0.01673
}

Semantic roles & 50–950 ramp

primary

#131D55

secondary

#8D8036

accent

#CD41E6

background

#F5F5F8

surface

#E9E9EF

border

#C5C5CA

text

#04030B

muted

#79787C

Preview Lab

Preview with #131D55

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

Preview Lab → · Contrast checker → · Palette generator →