#1F103D#1F103D

#1F103D is a very dark, moderate violet. Relative luminance 0.010; OKLCH L 22.4% C 0.082 H 294.1°. Best body text is #FFFFFF at 17.50:1 contrast (WCAG AA passes).

Color values

HEX	#1F103D
RGB	rgb(31, 16, 61)
HSL	hsl(260, 58%, 15%)
HSV	hsv(260, 74%, 24%)
CMYK	cmyk(49.2%, 73.8%, 0%, 76.1%)
CIE-LAB	lab(8.98, 20.26, -26.19)
CIE-LCH	lch(8.98, 33.12, 307.72°)
OKLab	oklab(22.41% 0.0335 -0.0748)
OKLCH	oklch(22.41% 0.082 294.1)
XYZ	xyz(1.5924, 0.9988, 4.5229)
Luminance	0.0100 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Midnight Purple

#280137

ΔE00 5.46

Midnight Blue (survey)

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1F103D #2E3D10

analogous

#10173D #1F103D #35103D

triadic

#1F103D #3D1F10 #103D1F

tetradic

#1F103D #3D1017 #2E3D10 #103D35

square

#1F103D #3D1017 #2E3D10 #103D35

split-complementary

#1F103D #3D3510 #173D10

monochromatic

#0C0618 #0C0618 #1F103D #381D6D #50299E

Accessibility & contrast

On white

17.50

#1F103D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.20

#1F103D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1F103D

17.50:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1F103D	#FFFFFF	#000000	##FFFFFF
##1F103D	1.00	17.50	1.20	17.50
#FFFFFF	17.50	1.00	21.00	1.00
#000000	1.20	21.00	1.00	21.00
##FFFFFF	17.50	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#001A3E

Deuteranopia (green-blind)

#00193C

Tritanopia (blue-blind)

#171A24

Achromatopsia (no color)

#191919

Design tokens & code

CSS

--color: #1f103d;
/* rgb */ color: rgb(31, 16, 61);
/* oklch */ color: oklch(22.4% 0.082 294.1);

Tailwind

colors: {
  custom: {
    50: '#5e4f73',
    500: '#1f103d',
    950: '#000000',
  },
}

SCSS

$custom: #1f103d;
$custom-light: #5e4f73;
$custom-dark: #000000;

JSON

{
  "hex": "#1f103d",
  "rgb": {
    "r": 31,
    "g": 16,
    "b": 61
  },
  "hsl": {
    "h": 260,
    "s": 58.442,
    "l": 15.098
  },
  "oklch": {
    "l": 0.2241,
    "c": 0.08196,
    "h": 294.1
  },
  "luminance": 0.00999
}

Semantic roles & 50–950 ramp

primary

#1F103D

secondary

#607732

accent

#E246AE

background

#F5F4F7

surface

#E9E7ED

border

#C5C3C8

text

#040208

muted

#79787B

Preview Lab

Preview with #1F103D

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

Preview Lab → · Contrast checker → · Palette generator →