#131F7E#131F7E

#131F7E is a dark, vivid blue. Relative luminance 0.026; OKLCH L 31.1% C 0.157 H 268.3°. Best body text is #FFFFFF at 13.77:1 contrast (WCAG AA passes).

Color values

HEX	#131F7E
RGB	rgb(19, 31, 126)
HSL	hsl(233, 74%, 28%)
HSV	hsv(233, 85%, 49%)
CMYK	cmyk(84.9%, 75.4%, 0%, 50.6%)
CIE-LAB	lab(18.47, 32.61, -54.26)
CIE-LCH	lch(18.47, 63.31, 301.00°)
OKLab	oklab(31.06% -0.0045 -0.1572)
OKLCH	oklch(31.06% 0.157 268.3)
XYZ	xyz(4.5231, 2.6242, 20.0028)
Luminance	0.0262 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#131F7E #7E7213

analogous

#13547E #131F7E #3C137E

triadic

#131F7E #7E131F #1F7E13

tetradic

#131F7E #7E1354 #7E7213 #137E3C

square

#131F7E #7E1354 #7E7213 #137E3C

split-complementary

#131F7E #7E3C13 #547E13

monochromatic

#04071B #0B1249 #131F7E #1B2CB3 #2C40DF

Accessibility & contrast

On white

13.77

#131F7E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.53

#131F7E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #131F7E

13.77:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##131F7E	#FFFFFF	#000000	##FFFFFF
##131F7E	1.00	13.77	1.53	13.77
#FFFFFF	13.77	1.00	21.00	1.00
#000000	1.53	21.00	1.00	21.00
##FFFFFF	13.77	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003281

Deuteranopia (green-blind)

#00287C

Tritanopia (blue-blind)

#003B4C

Achromatopsia (no color)

#2D2D2D

Design tokens & code

CSS

--color: #131f7e;
/* rgb */ color: rgb(19, 31, 126);
/* oklch */ color: oklch(31.1% 0.157 268.3);

Tailwind

colors: {
  custom: {
    50: '#675ba4',
    500: '#131f7e',
    950: '#000000',
  },
}

SCSS

$custom: #131f7e;
$custom-light: #675ba4;
$custom-dark: #000000;

JSON

{
  "hex": "#131f7e",
  "rgb": {
    "r": 19,
    "g": 31,
    "b": 126
  },
  "hsl": {
    "h": 233.271,
    "s": 73.793,
    "l": 28.431
  },
  "oklch": {
    "l": 0.3106,
    "c": 0.15732,
    "h": 268.3
  },
  "luminance": 0.02625
}

Semantic roles & 50–950 ramp

primary

#131F7E

secondary

#B4A639

accent

#DC37F0

background

#F6F5FA

surface

#ECE9F4

border

#C7C5CE

text

#07040F

muted

#7A797F

Preview Lab

Preview with #131F7E

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

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