#1F1786#1F1786

#1F1786 is a dark, vivid blue. Relative luminance 0.026; OKLCH L 31.5% C 0.172 H 273.5°. Best body text is #FFFFFF at 13.77:1 contrast (WCAG AA passes).

Color values

HEX	#1F1786
RGB	rgb(31, 23, 134)
HSL	hsl(244, 71%, 31%)
HSV	hsv(244, 83%, 53%)
CMYK	cmyk(76.9%, 82.8%, 0%, 47.5%)
CIE-LAB	lab(18.47, 40.89, -59.30)
CIE-LCH	lch(18.47, 72.03, 304.59°)
OKLab	oklab(31.52% 0.0105 -0.1715)
OKLCH	oklch(31.52% 0.172 273.5)
XYZ	xyz(5.1731, 2.6248, 22.7836)
Luminance	0.0262 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1F1786 #7E8617

analogous

#174686 #1F1786 #561786

triadic

#1F1786 #861F17 #17861F

tetradic

#1F1786 #861746 #7E8617 #178656

square

#1F1786 #861746 #7E8617 #178656

split-complementary

#1F1786 #865617 #468617

monochromatic

#07051E #130E52 #1F1786 #2B20BA #463ADD

Accessibility & contrast

On white

13.77

#1F1786 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.53

#1F1786 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1F1786

13.77:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1F1786	#FFFFFF	#000000	##FFFFFF
##1F1786	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)

#003289

Deuteranopia (green-blind)

#002884

Tritanopia (blue-blind)

#003A4F

Achromatopsia (no color)

#2D2D2D

Design tokens & code

CSS

--color: #1f1786;
/* rgb */ color: rgb(31, 23, 134);
/* oklch */ color: oklch(31.5% 0.172 273.5);

Tailwind

colors: {
  custom: {
    50: '#6e57aa',
    500: '#1f1786',
    950: '#000000',
  },
}

SCSS

$custom: #1f1786;
$custom-light: #6e57aa;
$custom-dark: #000000;

JSON

{
  "hex": "#1f1786",
  "rgb": {
    "r": 31,
    "g": 23,
    "b": 134
  },
  "hsl": {
    "h": 244.324,
    "s": 70.701,
    "l": 30.784
  },
  "oklch": {
    "l": 0.31519,
    "c": 0.17186,
    "h": 273.5
  },
  "luminance": 0.02625
}

Semantic roles & 50–950 ramp

primary

#1F1786

secondary

#B1BA3F

accent

#ED3AE1

background

#F7F5FA

surface

#EDE9F4

border

#C8C5CE

text

#080310

muted

#7B787F

Preview Lab

Preview with #1F1786

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

Preview Lab → · Contrast checker → · Palette generator →