#1F103C#1F103C

#1F103C is a very dark, moderate violet. Relative luminance 0.010; OKLCH L 22.3% C 0.080 H 294.7°. Best body text is #FFFFFF at 17.54:1 contrast (WCAG AA passes).

Color values

HEX	#1F103C
RGB	rgb(31, 16, 60)
HSL	hsl(260, 58%, 15%)
HSV	hsv(260, 73%, 24%)
CMYK	cmyk(48.3%, 73.3%, 0%, 76.5%)
CIE-LAB	lab(8.89, 19.93, -25.62)
CIE-LCH	lch(8.89, 32.46, 307.88°)
OKLab	oklab(22.32% 0.0336 -0.0731)
OKLCH	oklch(22.32% 0.08 294.7)
XYZ	xyz(1.5658, 0.9881, 4.3823)
Luminance	0.0099 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Midnight Blue (survey)

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1F103C #2D3C10

analogous

#10173C #1F103C #35103C

triadic

#1F103C #3C1F10 #103C1F

tetradic

#1F103C #3C1017 #2D3C10 #103C35

square

#1F103C #3C1017 #2D3C10 #103C35

split-complementary

#1F103C #3C3510 #173C10

monochromatic

#0C0618 #0C0618 #1F103C #381D6C #512A9D

Accessibility & contrast

On white

17.54

#1F103C on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.20

#1F103C on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1F103C

17.54:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1F103C	#FFFFFF	#000000	##FFFFFF
##1F103C	1.00	17.54	1.20	17.54
#FFFFFF	17.54	1.00	21.00	1.00
#000000	1.20	21.00	1.00	21.00
##FFFFFF	17.54	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#001A3D

Deuteranopia (green-blind)

#00193B

Tritanopia (blue-blind)

#171A24

Achromatopsia (no color)

#191919

Design tokens & code

CSS

--color: #1f103c;
/* rgb */ color: rgb(31, 16, 60);
/* oklch */ color: oklch(22.3% 0.080 294.7);

Tailwind

colors: {
  custom: {
    50: '#5e4f72',
    500: '#1f103c',
    950: '#000000',
  },
}

SCSS

$custom: #1f103c;
$custom-light: #5e4f72;
$custom-dark: #000000;

JSON

{
  "hex": "#1f103c",
  "rgb": {
    "r": 31,
    "g": 16,
    "b": 60
  },
  "hsl": {
    "h": 260.455,
    "s": 57.895,
    "l": 14.902
  },
  "oklch": {
    "l": 0.22317,
    "c": 0.08047,
    "h": 294.7
  },
  "luminance": 0.00988
}

Semantic roles & 50–950 ramp

primary

#1F103C

secondary

#5F7632

accent

#E147AC

background

#F5F4F6

surface

#E9E7EC

border

#C5C3C7

text

#040208

muted

#79787B

Preview Lab

Preview with #1F103C

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

Preview Lab → · Contrast checker → · Palette generator →