#131B7F#131B7F

#131B7F is a dark, vivid blue. Relative luminance 0.025; OKLCH L 30.6% C 0.163 H 268.8°. Best body text is #FFFFFF at 14.08:1 contrast (WCAG AA passes).

Color values

HEX	#131B7F
RGB	rgb(19, 27, 127)
HSL	hsl(236, 74%, 29%)
HSV	hsv(236, 85%, 50%)
CMYK	cmyk(85%, 78.7%, 0%, 50.2%)
CIE-LAB	lab(17.71, 35.45, -56.16)
CIE-LCH	lch(17.71, 66.41, 302.26°)
OKLab	oklab(30.55% -0.0033 -0.1627)
OKLCH	oklch(30.55% 0.163 268.8)
XYZ	xyz(4.4899, 2.4541, 20.3116)
Luminance	0.0245 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#131B7F #7F7713

analogous

#13517F #131B7F #41137F

triadic

#131B7F #7F131B #1B7F13

tetradic

#131B7F #7F1351 #7F7713 #137F41

square

#131B7F #7F1351 #7F7713 #137F41

split-complementary

#131B7F #7F4113 #517F13

monochromatic

#04061B #0B104A #131B7F #1B26B4 #2D3AE0

Accessibility & contrast

On white

14.08

#131B7F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.49

#131B7F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #131B7F

14.08:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##131B7F	#FFFFFF	#000000	##FFFFFF
##131B7F	1.00	14.08	1.49	14.08
#FFFFFF	14.08	1.00	21.00	1.00
#000000	1.49	21.00	1.00	21.00
##FFFFFF	14.08	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003182

Deuteranopia (green-blind)

#00267D

Tritanopia (blue-blind)

#00394C

Achromatopsia (no color)

#2B2B2B

Design tokens & code

CSS

--color: #131b7f;
/* rgb */ color: rgb(19, 27, 127);
/* oklch */ color: oklch(30.6% 0.163 268.8);

Tailwind

colors: {
  custom: {
    50: '#6859a5',
    500: '#131b7f',
    950: '#000000',
  },
}

SCSS

$custom: #131b7f;
$custom-light: #6859a5;
$custom-dark: #000000;

JSON

{
  "hex": "#131b7f",
  "rgb": {
    "r": 19,
    "g": 27,
    "b": 127
  },
  "hsl": {
    "h": 235.556,
    "s": 73.973,
    "l": 28.627
  },
  "oklch": {
    "l": 0.30552,
    "c": 0.16275,
    "h": 268.8
  },
  "luminance": 0.02455
}

Semantic roles & 50–950 ramp

primary

#131B7F

secondary

#B4AB39

accent

#E337F1

background

#F6F5FA

surface

#ECE9F4

border

#C7C5CE

text

#07030F

muted

#7A787F

Preview Lab

Preview with #131B7F

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

Preview Lab → · Contrast checker → · Palette generator →