#131C5A#131C5A

#131C5A is a dark, moderate blue. Relative luminance 0.017; OKLCH L 26.6% C 0.111 H 270.4°. Best body text is #FFFFFF at 15.66:1 contrast (WCAG AA passes).

Color values

HEX	#131C5A
RGB	rgb(19, 28, 90)
HSL	hsl(232, 65%, 21%)
HSV	hsv(232, 79%, 35%)
CMYK	cmyk(78.9%, 68.9%, 0%, 64.7%)
CIE-LAB	lab(13.87, 20.52, -38.34)
CIE-LCH	lch(13.87, 43.49, 298.16°)
OKLab	oklab(26.56% 0.0007 -0.1108)
OKLCH	oklch(26.56% 0.111 270.4)
XYZ	xyz(2.5286, 1.7069, 9.8671)
Luminance	0.0171 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#131C5A #5A5113

analogous

#13405A #131C5A #2E135A

triadic

#131C5A #5A131C #1C5A13

tetradic

#131C5A #5A1340 #5A5113 #135A2E

square

#131C5A #5A1340 #5A5113 #135A2E

split-complementary

#131C5A #5A2E13 #405A13

monochromatic

#050819 #080C27 #131C5A #1E2C8D #283BBF

Accessibility & contrast

On white

15.66

#131C5A on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.34

#131C5A on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #131C5A

15.66:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##131C5A	#FFFFFF	#000000	##FFFFFF
##131C5A	1.00	15.66	1.34	15.66
#FFFFFF	15.66	1.00	21.00	1.00
#000000	1.34	21.00	1.00	21.00
##FFFFFF	15.66	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00275C

Deuteranopia (green-blind)

#002059

Tritanopia (blue-blind)

#002C38

Achromatopsia (no color)

#232323

Design tokens & code

CSS

--color: #131c5a;
/* rgb */ color: rgb(19, 28, 90);
/* oklch */ color: oklch(26.6% 0.111 270.4);

Tailwind

colors: {
  custom: {
    50: '#5d5889',
    500: '#131c5a',
    950: '#000000',
  },
}

SCSS

$custom: #131c5a;
$custom-light: #5d5889;
$custom-dark: #000000;

JSON

{
  "hex": "#131c5a",
  "rgb": {
    "r": 19,
    "g": 28,
    "b": 90
  },
  "hsl": {
    "h": 232.394,
    "s": 65.138,
    "l": 21.373
  },
  "oklch": {
    "l": 0.26563,
    "c": 0.11081,
    "h": 270.4
  },
  "luminance": 0.01707
}

Semantic roles & 50–950 ramp

primary

#131C5A

secondary

#928737

accent

#D340E8

background

#F5F5F8

surface

#E9E9F0

border

#C5C5CB

text

#05030C

muted

#79787D

Preview Lab

Preview with #131C5A

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

Preview Lab → · Contrast checker → · Palette generator →