#1F1471#1F1471

#1F1471 is a dark, vivid blue. Relative luminance 0.020; OKLCH L 28.6% C 0.148 H 276.8°. Best body text is #FFFFFF at 15.03:1 contrast (WCAG AA passes).

Color values

HEX	#1F1471
RGB	rgb(31, 20, 113)
HSL	hsl(247, 70%, 26%)
HSV	hsv(247, 82%, 44%)
CMYK	cmyk(72.6%, 82.3%, 0%, 55.7%)
CIE-LAB	lab(15.40, 35.55, -50.97)
CIE-LCH	lch(15.40, 62.14, 304.89°)
OKLab	oklab(28.64% 0.0175 -0.1473)
OKLCH	oklch(28.64% 0.148 276.8)
XYZ	xyz(3.7949, 1.9835, 15.8025)
Luminance	0.0198 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1F1471 #667114

analogous

#143771 #1F1471 #4D1471

triadic

#1F1471 #711F14 #14711F

tetradic

#1F1471 #711437 #667114 #14714D

square

#1F1471 #711437 #667114 #14714D

split-complementary

#1F1471 #714D14 #377114

monochromatic

#07051A #110B3D #1F1471 #2D1DA5 #3C27D9

Accessibility & contrast

On white

15.03

#1F1471 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.40

#1F1471 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1F1471

15.03:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1F1471	#FFFFFF	#000000	##FFFFFF
##1F1471	1.00	15.03	1.40	15.03
#FFFFFF	15.03	1.00	21.00	1.00
#000000	1.40	21.00	1.00	21.00
##FFFFFF	15.03	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#002A74

Deuteranopia (green-blind)

#00226F

Tritanopia (blue-blind)

#003042

Achromatopsia (no color)

#272727

Design tokens & code

CSS

--color: #1f1471;
/* rgb */ color: rgb(31, 20, 113);
/* oklch */ color: oklch(28.6% 0.148 276.8);

Tailwind

colors: {
  custom: {
    50: '#69549b',
    500: '#1f1471',
    950: '#000000',
  },
}

SCSS

$custom: #1f1471;
$custom-light: #69549b;
$custom-dark: #000000;

JSON

{
  "hex": "#1f1471",
  "rgb": {
    "r": 31,
    "g": 20,
    "b": 113
  },
  "hsl": {
    "h": 247.097,
    "s": 69.925,
    "l": 26.078
  },
  "oklch": {
    "l": 0.2864,
    "c": 0.14833,
    "h": 276.8
  },
  "luminance": 0.01984
}

Semantic roles & 50–950 ramp

primary

#1F1471

secondary

#9AA739

accent

#ED3BD8

background

#F6F5F9

surface

#ECE8F2

border

#C7C4CC

text

#07030E

muted

#7A787E

Preview Lab

Preview with #1F1471

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

Preview Lab → · Contrast checker → · Palette generator →