#1F1C8D#1F1C8D

#1F1C8D is a dark, vivid blue. Relative luminance 0.030; OKLCH L 33.0% C 0.176 H 272.3°. Best body text is #FFFFFF at 13.05:1 contrast (WCAG AA passes).

Color values

HEX	#1F1C8D
RGB	rgb(31, 28, 141)
HSL	hsl(242, 67%, 33%)
HSV	hsv(242, 80%, 55%)
CMYK	cmyk(78%, 80.1%, 0%, 44.7%)
CIE-LAB	lab(20.22, 40.57, -60.79)
CIE-LCH	lch(20.22, 73.09, 303.72°)
OKLab	oklab(32.98% 0.007 -0.1759)
OKLCH	oklch(32.98% 0.176 272.3)
XYZ	xyz(5.7864, 3.0443, 25.4768)
Luminance	0.0305 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1F1C8D #8A8D1C

analogous

#1C518D #1F1C8D #571C8D

triadic

#1F1C8D #8D1F1C #1C8D1F

tetradic

#1F1C8D #8D1C51 #8A8D1C #1C8D57

square

#1F1C8D #8D1C51 #8A8D1C #1C8D57

split-complementary

#1F1C8D #8D571C #518D1C

monochromatic

#090827 #14125A #1F1C8D #2A26C0 #4C49DB

Accessibility & contrast

On white

13.05

#1F1C8D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.61

#1F1C8D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1F1C8D

13.05:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1F1C8D	#FFFFFF	#000000	##FFFFFF
##1F1C8D	1.00	13.05	1.61	13.05
#FFFFFF	13.05	1.00	21.00	1.00
#000000	1.61	21.00	1.00	21.00
##FFFFFF	13.05	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003690

Deuteranopia (green-blind)

#002B8B

Tritanopia (blue-blind)

#003F54

Achromatopsia (no color)

#313131

Design tokens & code

CSS

--color: #1f1c8d;
/* rgb */ color: rgb(31, 28, 141);
/* oklch */ color: oklch(33.0% 0.176 272.3);

Tailwind

colors: {
  custom: {
    50: '#6f5bb0',
    500: '#1f1c8d',
    950: '#000000',
  },
}

SCSS

$custom: #1f1c8d;
$custom-light: #6f5bb0;
$custom-dark: #000000;

JSON

{
  "hex": "#1f1c8d",
  "rgb": {
    "r": 31,
    "g": 28,
    "b": 141
  },
  "hsl": {
    "h": 241.593,
    "s": 66.864,
    "l": 33.137
  },
  "oklch": {
    "l": 0.32982,
    "c": 0.17609,
    "h": 272.3
  },
  "luminance": 0.03045
}

Semantic roles & 50–950 ramp

primary

#1F1C8D

secondary

#BABD48

accent

#EA3EE5

background

#F7F5FB

surface

#EDE9F6

border

#C8C5D0

text

#090411

muted

#7B7980

Preview Lab

Preview with #1F1C8D

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

Preview Lab → · Contrast checker → · Palette generator →