#1F1585#1F1585

#1F1585 is a dark, vivid blue. Relative luminance 0.025; OKLCH L 31.2% C 0.172 H 273.8°. Best body text is #FFFFFF at 13.96:1 contrast (WCAG AA passes).

Color values

HEX	#1F1585
RGB	rgb(31, 21, 133)
HSL	hsl(245, 73%, 30%)
HSV	hsv(245, 84%, 52%)
CMYK	cmyk(76.7%, 84.2%, 0%, 47.8%)
CIE-LAB	lab(18.01, 41.56, -59.44)
CIE-LCH	lch(18.01, 72.52, 304.96°)
OKLab	oklab(31.16% 0.0115 -0.1719)
OKLCH	oklch(31.16% 0.172 273.8)
XYZ	xyz(5.0655, 2.5206, 22.4053)
Luminance	0.0252 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1F1585 #7B8515

analogous

#154385 #1F1585 #571585

triadic

#1F1585 #851F15 #15851F

tetradic

#1F1585 #851543 #7B8515 #158557

square

#1F1585 #851543 #7B8515 #158557

split-complementary

#1F1585 #855715 #438515

monochromatic

#06041B #130D50 #1F1585 #2B1DBA #4435DF

Accessibility & contrast

On white

13.96

#1F1585 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.50

#1F1585 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1F1585

13.96:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1F1585	#FFFFFF	#000000	##FFFFFF
##1F1585	1.00	13.96	1.50	13.96
#FFFFFF	13.96	1.00	21.00	1.00
#000000	1.50	21.00	1.00	21.00
##FFFFFF	13.96	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003188

Deuteranopia (green-blind)

#002783

Tritanopia (blue-blind)

#00394E

Achromatopsia (no color)

#2C2C2C

Design tokens & code

CSS

--color: #1f1585;
/* rgb */ color: rgb(31, 21, 133);
/* oklch */ color: oklch(31.2% 0.172 273.8);

Tailwind

colors: {
  custom: {
    50: '#6e56aa',
    500: '#1f1585',
    950: '#000000',
  },
}

SCSS

$custom: #1f1585;
$custom-light: #6e56aa;
$custom-dark: #000000;

JSON

{
  "hex": "#1f1585",
  "rgb": {
    "r": 31,
    "g": 21,
    "b": 133
  },
  "hsl": {
    "h": 245.357,
    "s": 72.727,
    "l": 30.196
  },
  "oklch": {
    "l": 0.31163,
    "c": 0.17228,
    "h": 273.8
  },
  "luminance": 0.02521
}

Semantic roles & 50–950 ramp

primary

#1F1585

secondary

#AEB93C

accent

#EF38DF

background

#F7F5FA

surface

#EDE9F4

border

#C8C5CE

text

#080310

muted

#7B787F

Preview Lab

Preview with #1F1585

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

Preview Lab → · Contrast checker → · Palette generator →