#1F154A#1F154A

#1F154A is a very dark, moderate violet. Relative luminance 0.013; OKLCH L 24.6% C 0.094 H 285.9°. Best body text is #FFFFFF at 16.61:1 contrast (WCAG AA passes).

Color values

HEX	#1F154A
RGB	rgb(31, 21, 74)
HSL	hsl(251, 56%, 19%)
HSV	hsv(251, 72%, 29%)
CMYK	cmyk(58.1%, 71.6%, 0%, 71%)
CIE-LAB	lab(11.43, 21.38, -31.37)
CIE-LCH	lch(11.43, 37.96, 304.28°)
OKLab	oklab(24.56% 0.0257 -0.09)
OKLCH	oklch(24.56% 0.094 285.9)
XYZ	xyz(2.0689, 1.3219, 6.6234)
Luminance	0.0132 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Midnight Blue (survey)

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1F154A #404A15

analogous

#15254A #1F154A #39154A

triadic

#1F154A #4A1F15 #154A1F

tetradic

#1F154A #4A1525 #404A15 #154A39

square

#1F154A #4A1525 #404A15 #154A39

split-complementary

#1F154A #4A3915 #254A15

monochromatic

#0A0718 #0B071A #1F154A #33237A #4730A9

Accessibility & contrast

On white

16.61

#1F154A on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.26

#1F154A on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1F154A

16.61:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1F154A	#FFFFFF	#000000	##FFFFFF
##1F154A	1.00	16.61	1.26	16.61
#FFFFFF	16.61	1.00	21.00	1.00
#000000	1.26	21.00	1.00	21.00
##FFFFFF	16.61	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00204C

Deuteranopia (green-blind)

#001D49

Tritanopia (blue-blind)

#0E222D

Achromatopsia (no color)

#1E1E1E

Design tokens & code

CSS

--color: #1f154a;
/* rgb */ color: rgb(31, 21, 74);
/* oklch */ color: oklch(24.6% 0.094 285.9);

Tailwind

colors: {
  custom: {
    50: '#60537d',
    500: '#1f154a',
    950: '#000000',
  },
}

SCSS

$custom: #1f154a;
$custom-light: #60537d;
$custom-dark: #000000;

JSON

{
  "hex": "#1f154a",
  "rgb": {
    "r": 31,
    "g": 21,
    "b": 74
  },
  "hsl": {
    "h": 251.321,
    "s": 55.789,
    "l": 18.627
  },
  "oklch": {
    "l": 0.24555,
    "c": 0.09359,
    "h": 285.9
  },
  "luminance": 0.01322
}

Semantic roles & 50–950 ramp

primary

#1F154A

secondary

#748239

accent

#DF49C3

background

#F5F4F7

surface

#EAE7EE

border

#C6C3C9

text

#05020A

muted

#79787C

Preview Lab

Preview with #1F154A

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

Preview Lab → · Contrast checker → · Palette generator →