#131B70#131B70

#131B70 is a dark, vivid blue. Relative luminance 0.021; OKLCH L 28.8% C 0.143 H 269.6°. Best body text is #FFFFFF at 14.81:1 contrast (WCAG AA passes).

Color values

HEX	#131B70
RGB	rgb(19, 27, 112)
HSL	hsl(235, 71%, 26%)
HSV	hsv(235, 83%, 44%)
CMYK	cmyk(83%, 75.9%, 0%, 56.1%)
CIE-LAB	lab(15.96, 29.90, -49.41)
CIE-LCH	lch(15.96, 57.76, 301.18°)
OKLab	oklab(28.79% -0.001 -0.1431)
OKLCH	oklch(28.79% 0.143 269.6)
XYZ	xyz(3.5841, 2.0918, 15.5409)
Luminance	0.0209 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#131B70 #706813

analogous

#134970 #131B70 #391370

triadic

#131B70 #70131B #1B7013

tetradic

#131B70 #701349 #706813 #137039

square

#131B70 #701349 #706813 #137039

split-complementary

#131B70 #703913 #497013

monochromatic

#04061A #0A0E3C #131B70 #1C28A4 #2534D9

Accessibility & contrast

On white

14.81

#131B70 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.42

#131B70 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #131B70

14.81:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##131B70	#FFFFFF	#000000	##FFFFFF
##131B70	1.00	14.81	1.42	14.81
#FFFFFF	14.81	1.00	21.00	1.00
#000000	1.42	21.00	1.00	21.00
##FFFFFF	14.81	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#002C73

Deuteranopia (green-blind)

#00236E

Tritanopia (blue-blind)

#003343

Achromatopsia (no color)

#282828

Design tokens & code

CSS

--color: #131b70;
/* rgb */ color: rgb(19, 27, 112);
/* oklch */ color: oklch(28.8% 0.143 269.6);

Tailwind

colors: {
  custom: {
    50: '#64589a',
    500: '#131b70',
    950: '#000000',
  },
}

SCSS

$custom: #131b70;
$custom-light: #64589a;
$custom-dark: #000000;

JSON

{
  "hex": "#131b70",
  "rgb": {
    "r": 19,
    "g": 27,
    "b": 112
  },
  "hsl": {
    "h": 234.839,
    "s": 70.992,
    "l": 25.686
  },
  "oklch": {
    "l": 0.28792,
    "c": 0.14314,
    "h": 269.6
  },
  "luminance": 0.02092
}

Semantic roles & 50–950 ramp

primary

#131B70

secondary

#A79D38

accent

#DE3AEE

background

#F6F5F9

surface

#EBE9F2

border

#C6C5CC

text

#06030E

muted

#7A787E

Preview Lab

Preview with #131B70

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

Preview Lab → · Contrast checker → · Palette generator →