#1F144B#1F144B

#1F144B is a very dark, moderate violet. Relative luminance 0.013; OKLCH L 24.5% C 0.097 H 286.0°. Best body text is #FFFFFF at 16.67:1 contrast (WCAG AA passes).

Color values

HEX	#1F144B
RGB	rgb(31, 20, 75)
HSL	hsl(252, 58%, 19%)
HSV	hsv(252, 73%, 29%)
CMYK	cmyk(58.7%, 73.3%, 0%, 70.6%)
CIE-LAB	lab(11.27, 22.41, -32.31)
CIE-LCH	lch(11.27, 39.33, 304.75°)
OKLab	oklab(24.47% 0.0266 -0.0928)
OKLCH	oklch(24.47% 0.097 286)
XYZ	xyz(2.0849, 1.2995, 6.7962)
Luminance	0.0130 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Midnight Blue (survey)

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1F144B #404B14

analogous

#14244B #1F144B #3A144B

triadic

#1F144B #4B1F14 #144B1F

tetradic

#1F144B #4B1424 #404B14 #144B3A

square

#1F144B #4B1424 #404B14 #144B3A

split-complementary

#1F144B #4B3A14 #244B14

monochromatic

#0A0618 #0B071B #1F144B #33217B #472EAC

Accessibility & contrast

On white

16.67

#1F144B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.26

#1F144B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1F144B

16.67:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1F144B	#FFFFFF	#000000	##FFFFFF
##1F144B	1.00	16.67	1.26	16.67
#FFFFFF	16.67	1.00	21.00	1.00
#000000	1.26	21.00	1.00	21.00
##FFFFFF	16.67	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#001F4D

Deuteranopia (green-blind)

#001C4A

Tritanopia (blue-blind)

#0D222D

Achromatopsia (no color)

#1E1E1E

Design tokens & code

CSS

--color: #1f144b;
/* rgb */ color: rgb(31, 20, 75);
/* oklch */ color: oklch(24.5% 0.097 286.0);

Tailwind

colors: {
  custom: {
    50: '#60527e',
    500: '#1f144b',
    950: '#000000',
  },
}

SCSS

$custom: #1f144b;
$custom-light: #60527e;
$custom-dark: #000000;

JSON

{
  "hex": "#1f144b",
  "rgb": {
    "r": 31,
    "g": 20,
    "b": 75
  },
  "hsl": {
    "h": 252,
    "s": 57.895,
    "l": 18.627
  },
  "oklch": {
    "l": 0.24472,
    "c": 0.09654,
    "h": 286
  },
  "luminance": 0.013
}

Semantic roles & 50–950 ramp

primary

#1F144B

secondary

#748338

accent

#E147C2

background

#F5F4F7

surface

#EAE7EE

border

#C6C3C9

text

#05020A

muted

#79787C

Preview Lab

Preview with #1F144B

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

Preview Lab → · Contrast checker → · Palette generator →