#1F103E#1F103E

#1F103E is a very dark, moderate violet. Relative luminance 0.010; OKLCH L 22.5% C 0.083 H 293.6°. Best body text is #FFFFFF at 17.47:1 contrast (WCAG AA passes).

Color values

HEX	#1F103E
RGB	rgb(31, 16, 62)
HSL	hsl(260, 59%, 15%)
HSV	hsv(260, 74%, 24%)
CMYK	cmyk(50%, 74.2%, 0%, 75.7%)
CIE-LAB	lab(9.07, 20.60, -26.76)
CIE-LCH	lch(9.07, 33.77, 307.59°)
OKLab	oklab(22.5% 0.0334 -0.0765)
OKLCH	oklch(22.5% 0.083 293.6)
XYZ	xyz(1.6196, 1.0096, 4.6660)
Luminance	0.0101 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Midnight Blue (survey)

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1F103E #2F3E10

analogous

#10183E #1F103E #36103E

triadic

#1F103E #3E1F10 #103E1F

tetradic

#1F103E #3E1018 #2F3E10 #103E36

square

#1F103E #3E1018 #2F3E10 #103E36

split-complementary

#1F103E #3E3610 #183E10

monochromatic

#0C0618 #0C0618 #1F103E #371D6F #50299F

Accessibility & contrast

On white

17.47

#1F103E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.20

#1F103E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1F103E

17.47:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1F103E	#FFFFFF	#000000	##FFFFFF
##1F103E	1.00	17.47	1.20	17.47
#FFFFFF	17.47	1.00	21.00	1.00
#000000	1.20	21.00	1.00	21.00
##FFFFFF	17.47	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#001A3F

Deuteranopia (green-blind)

#00193D

Tritanopia (blue-blind)

#161B25

Achromatopsia (no color)

#1A1A1A

Design tokens & code

CSS

--color: #1f103e;
/* rgb */ color: rgb(31, 16, 62);
/* oklch */ color: oklch(22.5% 0.083 293.6);

Tailwind

colors: {
  custom: {
    50: '#5e4f74',
    500: '#1f103e',
    950: '#000000',
  },
}

SCSS

$custom: #1f103e;
$custom-light: #5e4f74;
$custom-dark: #000000;

JSON

{
  "hex": "#1f103e",
  "rgb": {
    "r": 31,
    "g": 16,
    "b": 62
  },
  "hsl": {
    "h": 259.565,
    "s": 58.974,
    "l": 15.294
  },
  "oklch": {
    "l": 0.22504,
    "c": 0.08343,
    "h": 293.6
  },
  "luminance": 0.0101
}

Semantic roles & 50–950 ramp

primary

#1F103E

secondary

#617832

accent

#E246AF

background

#F5F4F7

surface

#E9E7ED

border

#C5C3C8

text

#040208

muted

#79787B

Preview Lab

Preview with #1F103E

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

Preview Lab → · Contrast checker → · Palette generator →