#131F75#131F75

#131F75 is a dark, vivid blue. Relative luminance 0.024; OKLCH L 30.0% C 0.145 H 268.6°. Best body text is #FFFFFF at 14.18:1 contrast (WCAG AA passes).

Color values

HEX	#131F75
RGB	rgb(19, 31, 117)
HSL	hsl(233, 72%, 27%)
HSV	hsv(233, 84%, 46%)
CMYK	cmyk(83.8%, 73.5%, 0%, 54.1%)
CIE-LAB	lab(17.47, 29.19, -50.16)
CIE-LCH	lch(17.47, 58.03, 300.20°)
OKLab	oklab(30.04% -0.0034 -0.1453)
OKLCH	oklch(30.04% 0.145 268.6)
XYZ	xyz(3.9683, 2.4023, 17.0807)
Luminance	0.0240 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#131F75 #756913

analogous

#135075 #131F75 #381375

triadic

#131F75 #75131F #1F7513

tetradic

#131F75 #751350 #756913 #137538

square

#131F75 #751350 #756913 #137538

split-complementary

#131F75 #753813 #507513

monochromatic

#04071A #0A1140 #131F75 #1C2DAA #273DDC

Accessibility & contrast

On white

14.18

#131F75 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.48

#131F75 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #131F75

14.18:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##131F75	#FFFFFF	#000000	##FFFFFF
##131F75	1.00	14.18	1.48	14.18
#FFFFFF	14.18	1.00	21.00	1.00
#000000	1.48	21.00	1.00	21.00
##FFFFFF	14.18	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003078

Deuteranopia (green-blind)

#002673

Tritanopia (blue-blind)

#003747

Achromatopsia (no color)

#2B2B2B

Design tokens & code

CSS

--color: #131f75;
/* rgb */ color: rgb(19, 31, 117);
/* oklch */ color: oklch(30.0% 0.145 268.6);

Tailwind

colors: {
  custom: {
    50: '#655b9e',
    500: '#131f75',
    950: '#000000',
  },
}

SCSS

$custom: #131f75;
$custom-light: #655b9e;
$custom-dark: #000000;

JSON

{
  "hex": "#131f75",
  "rgb": {
    "r": 19,
    "g": 31,
    "b": 117
  },
  "hsl": {
    "h": 232.653,
    "s": 72.059,
    "l": 26.667
  },
  "oklch": {
    "l": 0.30043,
    "c": 0.14535,
    "h": 268.6
  },
  "luminance": 0.02403
}

Semantic roles & 50–950 ramp

primary

#131F75

secondary

#AB9D38

accent

#D939EF

background

#F6F5F9

surface

#EBE9F2

border

#C6C5CC

text

#07040E

muted

#7A797E

Preview Lab

Preview with #131F75

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

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