#131F57#131F57

#131F57 is a dark, moderate blue. Relative luminance 0.018; OKLCH L 26.9% C 0.102 H 269.1°. Best body text is #FFFFFF at 15.43:1 contrast (WCAG AA passes).

Color values

HEX	#131F57
RGB	rgb(19, 31, 87)
HSL	hsl(229, 64%, 21%)
HSV	hsv(229, 78%, 34%)
CMYK	cmyk(78.2%, 64.4%, 0%, 65.9%)
CIE-LAB	lab(14.44, 17.08, -35.39)
CIE-LCH	lch(14.44, 39.30, 295.76°)
OKLab	oklab(26.9% -0.0016 -0.1021)
OKLCH	oklch(26.9% 0.102 269.1)
XYZ	xyz(2.4783, 1.8063, 9.2330)
Luminance	0.0181 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#131F57 #574B13

analogous

#134157 #131F57 #291357

triadic

#131F57 #57131F #1F5713

tetradic

#131F57 #571341 #574B13 #135729

square

#131F57 #571341 #574B13 #135729

split-complementary

#131F57 #572913 #415713

monochromatic

#050919 #080D25 #131F57 #1E3189 #2943BB

Accessibility & contrast

On white

15.43

#131F57 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.36

#131F57 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #131F57

15.43:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##131F57	#FFFFFF	#000000	##FFFFFF
##131F57	1.00	15.43	1.36	15.43
#FFFFFF	15.43	1.00	21.00	1.00
#000000	1.36	21.00	1.00	21.00
##FFFFFF	15.43	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#002859

Deuteranopia (green-blind)

#002156

Tritanopia (blue-blind)

#002D37

Achromatopsia (no color)

#242424

Design tokens & code

CSS

--color: #131f57;
/* rgb */ color: rgb(19, 31, 87);
/* oklch */ color: oklch(26.9% 0.102 269.1);

Tailwind

colors: {
  custom: {
    50: '#5c5a87',
    500: '#131f57',
    950: '#000000',
  },
}

SCSS

$custom: #131f57;
$custom-light: #5c5a87;
$custom-dark: #000000;

JSON

{
  "hex": "#131f57",
  "rgb": {
    "r": 19,
    "g": 31,
    "b": 87
  },
  "hsl": {
    "h": 229.412,
    "s": 64.151,
    "l": 20.784
  },
  "oklch": {
    "l": 0.26895,
    "c": 0.10214,
    "h": 269.1
  },
  "luminance": 0.01807
}

Semantic roles & 50–950 ramp

primary

#131F57

secondary

#8F8036

accent

#CA41E7

background

#F5F5F8

surface

#E9E9EF

border

#C5C5CA

text

#05030B

muted

#79787C

Preview Lab

Preview with #131F57

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

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