#131F59#131F59

#131F59 is a dark, moderate blue. Relative luminance 0.018; OKLCH L 27.1% C 0.105 H 269.1°. Best body text is #FFFFFF at 15.35:1 contrast (WCAG AA passes).

Color values

HEX	#131F59
RGB	rgb(19, 31, 89)
HSL	hsl(230, 65%, 21%)
HSV	hsv(230, 79%, 35%)
CMYK	cmyk(78.7%, 65.2%, 0%, 65.1%)
CIE-LAB	lab(14.62, 17.91, -36.44)
CIE-LCH	lch(14.62, 40.60, 296.18°)
OKLab	oklab(27.09% -0.0016 -0.1052)
OKLCH	oklch(27.09% 0.105 269.1)
XYZ	xyz(2.5611, 1.8394, 9.6693)
Luminance	0.0184 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#131F59 #594D13

analogous

#134259 #131F59 #2A1359

triadic

#131F59 #59131F #1F5913

tetradic

#131F59 #591342 #594D13 #13592A

square

#131F59 #591342 #594D13 #13592A

split-complementary

#131F59 #592A13 #425913

monochromatic

#050919 #080D27 #131F59 #1E318B #2942BE

Accessibility & contrast

On white

15.35

#131F59 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.37

#131F59 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #131F59

15.35:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##131F59	#FFFFFF	#000000	##FFFFFF
##131F59	1.00	15.35	1.37	15.35
#FFFFFF	15.35	1.00	21.00	1.00
#000000	1.37	21.00	1.00	21.00
##FFFFFF	15.35	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00285B

Deuteranopia (green-blind)

#002258

Tritanopia (blue-blind)

#002E38

Achromatopsia (no color)

#252525

Design tokens & code

CSS

--color: #131f59;
/* rgb */ color: rgb(19, 31, 89);
/* oklch */ color: oklch(27.1% 0.105 269.1);

Tailwind

colors: {
  custom: {
    50: '#5d5a88',
    500: '#131f59',
    950: '#000000',
  },
}

SCSS

$custom: #131f59;
$custom-light: #5d5a88;
$custom-dark: #000000;

JSON

{
  "hex": "#131f59",
  "rgb": {
    "r": 19,
    "g": 31,
    "b": 89
  },
  "hsl": {
    "h": 229.714,
    "s": 64.815,
    "l": 21.176
  },
  "oklch": {
    "l": 0.2709,
    "c": 0.1052,
    "h": 269.1
  },
  "luminance": 0.0184
}

Semantic roles & 50–950 ramp

primary

#131F59

secondary

#918237

accent

#CB40E8

background

#F5F5F8

surface

#E9E9F0

border

#C5C5CB

text

#05030B

muted

#79787C

Preview Lab

Preview with #131F59

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

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