#131F55#131F55

#131F55 is a dark, moderate blue. Relative luminance 0.018; OKLCH L 26.7% C 0.099 H 269.1°. Best body text is #FFFFFF at 15.50:1 contrast (WCAG AA passes).

Color values

HEX	#131F55
RGB	rgb(19, 31, 85)
HSL	hsl(229, 63%, 20%)
HSV	hsv(229, 78%, 33%)
CMYK	cmyk(77.6%, 63.5%, 0%, 66.7%)
CIE-LAB	lab(14.25, 16.24, -34.34)
CIE-LCH	lch(14.25, 37.98, 295.31°)
OKLab	oklab(26.7% -0.0016 -0.099)
OKLCH	oklch(26.7% 0.099 269.1)
XYZ	xyz(2.3977, 1.7741, 8.8086)
Luminance	0.0177 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#131F55 #554913

analogous

#134055 #131F55 #281355

triadic

#131F55 #55131F #1F5513

tetradic

#131F55 #551340 #554913 #135528

square

#131F55 #551340 #554913 #135528

split-complementary

#131F55 #552813 #405513

monochromatic

#060919 #080D23 #131F55 #1E3187 #2943B9

Accessibility & contrast

On white

15.50

#131F55 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.35

#131F55 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #131F55

15.50:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##131F55	#FFFFFF	#000000	##FFFFFF
##131F55	1.00	15.50	1.35	15.50
#FFFFFF	15.50	1.00	21.00	1.00
#000000	1.35	21.00	1.00	21.00
##FFFFFF	15.50	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#002757

Deuteranopia (green-blind)

#002154

Tritanopia (blue-blind)

#002C36

Achromatopsia (no color)

#242424

Design tokens & code

CSS

--color: #131f55;
/* rgb */ color: rgb(19, 31, 85);
/* oklch */ color: oklch(26.7% 0.099 269.1);

Tailwind

colors: {
  custom: {
    50: '#5b5a85',
    500: '#131f55',
    950: '#000000',
  },
}

SCSS

$custom: #131f55;
$custom-light: #5b5a85;
$custom-dark: #000000;

JSON

{
  "hex": "#131f55",
  "rgb": {
    "r": 19,
    "g": 31,
    "b": 85
  },
  "hsl": {
    "h": 229.091,
    "s": 63.462,
    "l": 20.392
  },
  "oklch": {
    "l": 0.26702,
    "c": 0.09904,
    "h": 269.1
  },
  "luminance": 0.01774
}

Semantic roles & 50–950 ramp

primary

#131F55

secondary

#8D7E36

accent

#C841E6

background

#F5F5F8

surface

#E9E9EF

border

#C5C5CA

text

#04030B

muted

#79787C

Preview Lab

Preview with #131F55

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

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