#131B49#131B49

#131B49 is a very dark, moderate blue. Relative luminance 0.014; OKLCH L 24.7% C 0.086 H 271.2°. Best body text is #FFFFFF at 16.40:1 contrast (WCAG AA passes).

Color values

HEX	#131B49
RGB	rgb(19, 27, 73)
HSL	hsl(231, 59%, 18%)
HSV	hsv(231, 74%, 29%)
CMYK	cmyk(74%, 63%, 0%, 71.4%)
CIE-LAB	lab(11.98, 14.21, -29.82)
CIE-LCH	lch(11.98, 33.03, 295.47°)
OKLab	oklab(24.67% 0.0018 -0.0858)
OKLCH	oklch(24.67% 0.086 271.2)
XYZ	xyz(1.8627, 1.4032, 6.4747)
Luminance	0.0140 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Midnight Blue (survey)

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#131B49 #494113

analogous

#133649 #131B49 #261349

triadic

#131B49 #49131B #1B4913

tetradic

#131B49 #491336 #494113 #134926

square

#131B49 #491336 #494113 #134926

split-complementary

#131B49 #492613 #364913

monochromatic

#060918 #060918 #131B49 #202D7A #2C3FAA

Accessibility & contrast

On white

16.40

#131B49 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.28

#131B49 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #131B49

16.40:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##131B49	#FFFFFF	#000000	##FFFFFF
##131B49	1.00	16.40	1.28	16.40
#FFFFFF	16.40	1.00	21.00	1.00
#000000	1.28	21.00	1.00	21.00
##FFFFFF	16.40	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00224B

Deuteranopia (green-blind)

#001D48

Tritanopia (blue-blind)

#00262E

Achromatopsia (no color)

#1F1F1F

Design tokens & code

CSS

--color: #131b49;
/* rgb */ color: rgb(19, 27, 73);
/* oklch */ color: oklch(24.7% 0.086 271.2);

Tailwind

colors: {
  custom: {
    50: '#59577c',
    500: '#131b49',
    950: '#000000',
  },
}

SCSS

$custom: #131b49;
$custom-light: #59577c;
$custom-dark: #000000;

JSON

{
  "hex": "#131b49",
  "rgb": {
    "r": 19,
    "g": 27,
    "b": 73
  },
  "hsl": {
    "h": 231.111,
    "s": 58.696,
    "l": 18.039
  },
  "oklch": {
    "l": 0.24668,
    "c": 0.08585,
    "h": 271.2
  },
  "luminance": 0.01403
}

Semantic roles & 50–950 ramp

primary

#131B49

secondary

#827636

accent

#CB46E2

background

#F5F5F7

surface

#E9E9EE

border

#C5C5C9

text

#040309

muted

#79787B

Preview Lab

Preview with #131B49

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

Preview Lab → · Contrast checker → · Palette generator →