#131F7F#131F7F

#131F7F is a dark, vivid blue. Relative luminance 0.027; OKLCH L 31.2% C 0.159 H 268.3°. Best body text is #FFFFFF at 13.72:1 contrast (WCAG AA passes).

Color values

HEX	#131F7F
RGB	rgb(19, 31, 127)
HSL	hsl(233, 74%, 29%)
HSV	hsv(233, 85%, 50%)
CMYK	cmyk(85%, 75.6%, 0%, 50.2%)
CIE-LAB	lab(18.58, 32.98, -54.71)
CIE-LCH	lch(18.58, 63.88, 301.08°)
OKLab	oklab(31.18% -0.0047 -0.1585)
OKLCH	oklch(31.18% 0.159 268.3)
XYZ	xyz(4.5880, 2.6502, 20.3443)
Luminance	0.0265 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#131F7F #7F7313

analogous

#13557F #131F7F #3D137F

triadic

#131F7F #7F131F #1F7F13

tetradic

#131F7F #7F1355 #7F7313 #137F3D

square

#131F7F #7F1355 #7F7313 #137F3D

split-complementary

#131F7F #7F3D13 #557F13

monochromatic

#04061B #0B124A #131F7F #1B2CB4 #2D41E0

Accessibility & contrast

On white

13.72

#131F7F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.53

#131F7F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #131F7F

13.72:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##131F7F	#FFFFFF	#000000	##FFFFFF
##131F7F	1.00	13.72	1.53	13.72
#FFFFFF	13.72	1.00	21.00	1.00
#000000	1.53	21.00	1.00	21.00
##FFFFFF	13.72	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003382

Deuteranopia (green-blind)

#00287D

Tritanopia (blue-blind)

#003B4D

Achromatopsia (no color)

#2D2D2D

Design tokens & code

CSS

--color: #131f7f;
/* rgb */ color: rgb(19, 31, 127);
/* oklch */ color: oklch(31.2% 0.159 268.3);

Tailwind

colors: {
  custom: {
    50: '#685ba5',
    500: '#131f7f',
    950: '#000000',
  },
}

SCSS

$custom: #131f7f;
$custom-light: #685ba5;
$custom-dark: #000000;

JSON

{
  "hex": "#131f7f",
  "rgb": {
    "r": 19,
    "g": 31,
    "b": 127
  },
  "hsl": {
    "h": 233.333,
    "s": 73.973,
    "l": 28.627
  },
  "oklch": {
    "l": 0.31175,
    "c": 0.15862,
    "h": 268.3
  },
  "luminance": 0.02651
}

Semantic roles & 50–950 ramp

primary

#131F7F

secondary

#B4A739

accent

#DC37F1

background

#F6F5FA

surface

#ECE9F4

border

#C7C5CE

text

#07040F

muted

#7A797F

Preview Lab

Preview with #131F7F

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

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