#1F115B#1F115B

#1F115B is a dark, vivid violet. Relative luminance 0.014; OKLCH L 25.7% C 0.123 H 282.1°. Best body text is #FFFFFF at 16.28:1 contrast (WCAG AA passes).

Color values

HEX	#1F115B
RGB	rgb(31, 17, 91)
HSL	hsl(251, 69%, 21%)
HSV	hsv(251, 81%, 36%)
CMYK	cmyk(65.9%, 81.3%, 0%, 64.3%)
CIE-LAB	lab(12.27, 29.83, -41.60)
CIE-LCH	lch(12.27, 51.19, 305.64°)
OKLab	oklab(25.69% 0.0258 -0.12)
OKLCH	oklch(25.69% 0.123 282.1)
XYZ	xyz(2.6533, 1.4473, 10.0351)
Luminance	0.0145 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1F115B #4D5B11

analogous

#11285B #1F115B #44115B

triadic

#1F115B #5B1F11 #115B1F

tetradic

#1F115B #5B1128 #4D5B11 #115B44

square

#1F115B #5B1128 #4D5B11 #115B44

split-complementary

#1F115B #5B4411 #285B11

monochromatic

#09051A #0D0727 #1F115B #311B8F #4224C2

Accessibility & contrast

On white

16.28

#1F115B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.29

#1F115B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1F115B

16.28:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1F115B	#FFFFFF	#000000	##FFFFFF
##1F115B	1.00	16.28	1.29	16.28
#FFFFFF	16.28	1.00	21.00	1.00
#000000	1.29	21.00	1.00	21.00
##FFFFFF	16.28	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00225D

Deuteranopia (green-blind)

#001D5A

Tritanopia (blue-blind)

#002635

Achromatopsia (no color)

#202020

Design tokens & code

CSS

--color: #1f115b;
/* rgb */ color: rgb(31, 17, 91);
/* oklch */ color: oklch(25.7% 0.123 282.1);

Tailwind

colors: {
  custom: {
    50: '#64518a',
    500: '#1f115b',
    950: '#000000',
  },
}

SCSS

$custom: #1f115b;
$custom-light: #64518a;
$custom-dark: #000000;

JSON

{
  "hex": "#1f115b",
  "rgb": {
    "r": 31,
    "g": 17,
    "b": 91
  },
  "hsl": {
    "h": 251.351,
    "s": 68.519,
    "l": 21.176
  },
  "oklch": {
    "l": 0.25691,
    "c": 0.1227,
    "h": 282.1
  },
  "luminance": 0.01448
}

Semantic roles & 50–950 ramp

primary

#1F115B

secondary

#829434

accent

#EB3CCA

background

#F6F4F8

surface

#EBE7F0

border

#C6C3CB

text

#06020C

muted

#7A787D

Preview Lab

Preview with #1F115B

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

Preview Lab → · Contrast checker → · Palette generator →