#131B63#131B63

#131B63 is a dark, vivid blue. Relative luminance 0.018; OKLCH L 27.3% C 0.125 H 270.3°. Best body text is #FFFFFF at 15.39:1 contrast (WCAG AA passes).

Color values

HEX	#131B63
RGB	rgb(19, 27, 99)
HSL	hsl(234, 68%, 23%)
HSV	hsv(234, 81%, 39%)
CMYK	cmyk(80.8%, 72.7%, 0%, 61.2%)
CIE-LAB	lab(14.53, 24.86, -43.25)
CIE-LCH	lch(14.53, 49.89, 299.89°)
OKLab	oklab(27.33% 0.0006 -0.1252)
OKLCH	oklch(27.33% 0.125 270.3)
XYZ	xyz(2.9119, 1.8228, 12.0003)
Luminance	0.0182 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#131B63 #635B13

analogous

#134363 #131B63 #331363

triadic

#131B63 #63131B #1B6313

tetradic

#131B63 #631343 #635B13 #136333

square

#131B63 #631343 #635B13 #136333

split-complementary

#131B63 #633313 #436313

monochromatic

#05071A #090D30 #131B63 #1D2996 #2737CA

Accessibility & contrast

On white

15.39

#131B63 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.36

#131B63 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #131B63

15.39:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##131B63	#FFFFFF	#000000	##FFFFFF
##131B63	1.00	15.39	1.36	15.39
#FFFFFF	15.39	1.00	21.00	1.00
#000000	1.36	21.00	1.00	21.00
##FFFFFF	15.39	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#002965

Deuteranopia (green-blind)

#002162

Tritanopia (blue-blind)

#002F3C

Achromatopsia (no color)

#252525

Design tokens & code

CSS

--color: #131b63;
/* rgb */ color: rgb(19, 27, 99);
/* oklch */ color: oklch(27.3% 0.125 270.3);

Tailwind

colors: {
  custom: {
    50: '#605790',
    500: '#131b63',
    950: '#000000',
  },
}

SCSS

$custom: #131b63;
$custom-light: #605790;
$custom-dark: #000000;

JSON

{
  "hex": "#131b63",
  "rgb": {
    "r": 19,
    "g": 27,
    "b": 99
  },
  "hsl": {
    "h": 234,
    "s": 67.797,
    "l": 23.137
  },
  "oklch": {
    "l": 0.27329,
    "c": 0.12519,
    "h": 270.3
  },
  "luminance": 0.01823
}

Semantic roles & 50–950 ramp

primary

#131B63

secondary

#9B9137

accent

#D93DEB

background

#F6F5F8

surface

#EBE9F0

border

#C6C5CB

text

#05030D

muted

#7A787D

Preview Lab

Preview with #131B63

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

Preview Lab → · Contrast checker → · Palette generator →