#1F1573#1F1573

#1F1573 is a dark, vivid blue. Relative luminance 0.021; OKLCH L 29.0% C 0.150 H 276.3°. Best body text is #FFFFFF at 14.86:1 contrast (WCAG AA passes).

Color values

HEX	#1F1573
RGB	rgb(31, 21, 115)
HSL	hsl(246, 69%, 27%)
HSV	hsv(246, 82%, 45%)
CMYK	cmyk(73%, 81.7%, 0%, 54.9%)
CIE-LAB	lab(15.83, 35.67, -51.56)
CIE-LCH	lch(15.83, 62.70, 304.68°)
OKLab	oklab(29.01% 0.0165 -0.149)
OKLCH	oklch(29.01% 0.15 276.3)
XYZ	xyz(3.9267, 2.0651, 16.4080)
Luminance	0.0207 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1F1573 #697315

analogous

#153A73 #1F1573 #4E1573

triadic

#1F1573 #731F15 #15731F

tetradic

#1F1573 #73153A #697315 #15734E

square

#1F1573 #73153A #697315 #15734E

split-complementary

#1F1573 #734E15 #3A7315

monochromatic

#07051A #110C3F #1F1573 #2D1EA7 #3D2AD8

Accessibility & contrast

On white

14.86

#1F1573 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.41

#1F1573 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1F1573

14.86:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1F1573	#FFFFFF	#000000	##FFFFFF
##1F1573	1.00	14.86	1.41	14.86
#FFFFFF	14.86	1.00	21.00	1.00
#000000	1.41	21.00	1.00	21.00
##FFFFFF	14.86	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#002B76

Deuteranopia (green-blind)

#002371

Tritanopia (blue-blind)

#003144

Achromatopsia (no color)

#272727

Design tokens & code

CSS

--color: #1f1573;
/* rgb */ color: rgb(31, 21, 115);
/* oklch */ color: oklch(29.0% 0.150 276.3);

Tailwind

colors: {
  custom: {
    50: '#69559c',
    500: '#1f1573',
    950: '#000000',
  },
}

SCSS

$custom: #1f1573;
$custom-light: #69559c;
$custom-dark: #000000;

JSON

{
  "hex": "#1f1573",
  "rgb": {
    "r": 31,
    "g": 21,
    "b": 115
  },
  "hsl": {
    "h": 246.383,
    "s": 69.118,
    "l": 26.667
  },
  "oklch": {
    "l": 0.29006,
    "c": 0.14994,
    "h": 276.3
  },
  "luminance": 0.02065
}

Semantic roles & 50–950 ramp

primary

#1F1573

secondary

#9DA93B

accent

#EC3CD9

background

#F6F5F9

surface

#ECE9F2

border

#C7C5CC

text

#07030E

muted

#7A787E

Preview Lab

Preview with #1F1573

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

Preview Lab → · Contrast checker → · Palette generator →