#1F1374#1F1374

#1F1374 is a dark, vivid blue. Relative luminance 0.020; OKLCH L 28.9% C 0.153 H 276.4°. Best body text is #FFFFFF at 14.96:1 contrast (WCAG AA passes).

Color values

HEX	#1F1374
RGB	rgb(31, 19, 116)
HSL	hsl(247, 72%, 26%)
HSV	hsv(247, 84%, 45%)
CMYK	cmyk(73.3%, 83.6%, 0%, 54.5%)
CIE-LAB	lab(15.58, 37.06, -52.61)
CIE-LCH	lch(15.58, 64.36, 305.16°)
OKLab	oklab(28.87% 0.0172 -0.1521)
OKLCH	oklch(28.87% 0.153 276.4)
XYZ	xyz(3.9493, 2.0176, 16.7009)
Luminance	0.0202 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1F1374 #687413

analogous

#133874 #1F1374 #501374

triadic

#1F1374 #741F13 #13741F

tetradic

#1F1374 #741338 #687413 #137450

square

#1F1374 #741338 #687413 #137450

split-complementary

#1F1374 #745013 #387413

monochromatic

#07041A #110A3F #1F1374 #2D1CA9 #3C26DB

Accessibility & contrast

On white

14.96

#1F1374 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.40

#1F1374 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1F1374

14.96:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1F1374	#FFFFFF	#000000	##FFFFFF
##1F1374	1.00	14.96	1.40	14.96
#FFFFFF	14.96	1.00	21.00	1.00
#000000	1.40	21.00	1.00	21.00
##FFFFFF	14.96	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#002B77

Deuteranopia (green-blind)

#002372

Tritanopia (blue-blind)

#003144

Achromatopsia (no color)

#272727

Design tokens & code

CSS

--color: #1f1374;
/* rgb */ color: rgb(31, 19, 116);
/* oklch */ color: oklch(28.9% 0.153 276.4);

Tailwind

colors: {
  custom: {
    50: '#6a549d',
    500: '#1f1374',
    950: '#000000',
  },
}

SCSS

$custom: #1f1374;
$custom-light: #6a549d;
$custom-dark: #000000;

JSON

{
  "hex": "#1f1374",
  "rgb": {
    "r": 31,
    "g": 19,
    "b": 116
  },
  "hsl": {
    "h": 247.423,
    "s": 71.852,
    "l": 26.471
  },
  "oklch": {
    "l": 0.2887,
    "c": 0.15302,
    "h": 276.4
  },
  "luminance": 0.02018
}

Semantic roles & 50–950 ramp

primary

#1F1374

secondary

#9CAA38

accent

#EF39D8

background

#F6F4F9

surface

#ECE8F2

border

#C7C4CC

text

#07030E

muted

#7A787E

Preview Lab

Preview with #1F1374

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

Preview Lab → · Contrast checker → · Palette generator →