#1F154D#1F154D

#1F154D is a very dark, moderate violet. Relative luminance 0.014; OKLCH L 24.8% C 0.098 H 284.9°. Best body text is #FFFFFF at 16.50:1 contrast (WCAG AA passes).

Color values

HEX	#1F154D
RGB	rgb(31, 21, 77)
HSL	hsl(251, 57%, 19%)
HSV	hsv(251, 73%, 30%)
CMYK	cmyk(59.7%, 72.7%, 0%, 69.8%)
CIE-LAB	lab(11.71, 22.45, -32.98)
CIE-LCH	lch(11.71, 39.90, 304.25°)
OKLab	oklab(24.85% 0.0252 -0.0947)
OKLCH	oklch(24.85% 0.098 284.9)
XYZ	xyz(2.1724, 1.3633, 7.1684)
Luminance	0.0136 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Midnight Blue (survey)

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1F154D #434D15

analogous

#15274D #1F154D #3B154D

triadic

#1F154D #4D1F15 #154D1F

tetradic

#1F154D #4D1527 #434D15 #154D3B

square

#1F154D #4D1527 #434D15 #154D3B

split-complementary

#1F154D #4D3B15 #274D15

monochromatic

#0A0718 #0C081D #1F154D #32227D #462FAD

Accessibility & contrast

On white

16.50

#1F154D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.27

#1F154D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1F154D

16.50:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1F154D	#FFFFFF	#000000	##FFFFFF
##1F154D	1.00	16.50	1.27	16.50
#FFFFFF	16.50	1.00	21.00	1.00
#000000	1.27	21.00	1.00	21.00
##FFFFFF	16.50	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00214F

Deuteranopia (green-blind)

#001D4C

Tritanopia (blue-blind)

#0B232E

Achromatopsia (no color)

#1F1F1F

Design tokens & code

CSS

--color: #1f154d;
/* rgb */ color: rgb(31, 21, 77);
/* oklch */ color: oklch(24.8% 0.098 284.9);

Tailwind

colors: {
  custom: {
    50: '#60537f',
    500: '#1f154d',
    950: '#000000',
  },
}

SCSS

$custom: #1f154d;
$custom-light: #60537f;
$custom-dark: #000000;

JSON

{
  "hex": "#1f154d",
  "rgb": {
    "r": 31,
    "g": 21,
    "b": 77
  },
  "hsl": {
    "h": 250.714,
    "s": 57.143,
    "l": 19.216
  },
  "oklch": {
    "l": 0.24849,
    "c": 0.09804,
    "h": 284.9
  },
  "luminance": 0.01363
}

Semantic roles & 50–950 ramp

primary

#1F154D

secondary

#778539

accent

#E047C5

background

#F5F4F7

surface

#EAE7EE

border

#C6C3C9

text

#05020A

muted

#79787C

Preview Lab

Preview with #1F154D

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

Preview Lab → · Contrast checker → · Palette generator →