#1F154E#1F154E

#1F154E is a very dark, moderate violet. Relative luminance 0.014; OKLCH L 24.9% C 0.100 H 284.6°. Best body text is #FFFFFF at 16.46:1 contrast (WCAG AA passes).

Color values

HEX	#1F154E
RGB	rgb(31, 21, 78)
HSL	hsl(251, 58%, 19%)
HSV	hsv(251, 73%, 31%)
CMYK	cmyk(60.3%, 73.1%, 0%, 69.4%)
CIE-LAB	lab(11.81, 22.81, -33.51)
CIE-LCH	lch(11.81, 40.54, 304.24°)
OKLab	oklab(24.95% 0.0251 -0.0963)
OKLCH	oklch(24.95% 0.1 284.6)
XYZ	xyz(2.2080, 1.3776, 7.3558)
Luminance	0.0138 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Midnight Blue (survey)

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1F154E #444E15

analogous

#15284E #1F154E #3C154E

triadic

#1F154E #4E1F15 #154E1F

tetradic

#1F154E #4E1528 #444E15 #154E3C

square

#1F154E #4E1528 #444E15 #154E3C

split-complementary

#1F154E #4E3C15 #284E15

monochromatic

#0A0618 #0C081E #1F154E #32227E #452FAE

Accessibility & contrast

On white

16.46

#1F154E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.28

#1F154E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1F154E

16.46:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1F154E	#FFFFFF	#000000	##FFFFFF
##1F154E	1.00	16.46	1.28	16.46
#FFFFFF	16.46	1.00	21.00	1.00
#000000	1.28	21.00	1.00	21.00
##FFFFFF	16.46	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#002150

Deuteranopia (green-blind)

#001D4D

Tritanopia (blue-blind)

#0A232F

Achromatopsia (no color)

#1F1F1F

Design tokens & code

CSS

--color: #1f154e;
/* rgb */ color: rgb(31, 21, 78);
/* oklch */ color: oklch(24.9% 0.100 284.6);

Tailwind

colors: {
  custom: {
    50: '#615380',
    500: '#1f154e',
    950: '#000000',
  },
}

SCSS

$custom: #1f154e;
$custom-light: #615380;
$custom-dark: #000000;

JSON

{
  "hex": "#1f154e",
  "rgb": {
    "r": 31,
    "g": 21,
    "b": 78
  },
  "hsl": {
    "h": 250.526,
    "s": 57.576,
    "l": 19.412
  },
  "oklch": {
    "l": 0.24948,
    "c": 0.09952,
    "h": 284.6
  },
  "luminance": 0.01378
}

Semantic roles & 50–950 ramp

primary

#1F154E

secondary

#788639

accent

#E147C6

background

#F5F4F7

surface

#EAE7EE

border

#C6C3C9

text

#05020A

muted

#79787C

Preview Lab

Preview with #1F154E

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

Preview Lab → · Contrast checker → · Palette generator →