#1F199F#1F199F

#1F199F is a dark, highly saturated blue. Relative luminance 0.035; OKLCH L 34.8% C 0.200 H 271.0°. Best body text is #FFFFFF at 12.37:1 contrast (WCAG AA passes).

Color values

HEX	#1F199F
RGB	rgb(31, 25, 159)
HSL	hsl(243, 73%, 36%)
HSV	hsv(243, 84%, 62%)
CMYK	cmyk(80.5%, 84.3%, 0%, 37.6%)
CIE-LAB	lab(21.90, 47.87, -69.11)
CIE-LCH	lch(21.90, 84.07, 304.71°)
OKLab	oklab(34.79% 0.0037 -0.2)
OKLCH	oklch(34.79% 0.2 271)
XYZ	xyz(7.1686, 3.4890, 33.0898)
Luminance	0.0349 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1F199F #999F19

analogous

#19569F #1F199F #62199F

triadic

#1F199F #9F1F19 #199F1F

tetradic

#1F199F #9F1956 #999F19 #199F62

square

#1F199F #9F1956 #999F19 #199F62

split-complementary

#1F199F #9F6219 #569F19

monochromatic

#0A0835 #15116A #1F199F #2921D4 #564FE3

Accessibility & contrast

On white

12.37

#1F199F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.70

#1F199F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1F199F

12.37:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1F199F	#FFFFFF	#000000	##FFFFFF
##1F199F	1.00	12.37	1.70	12.37
#FFFFFF	12.37	1.00	21.00	1.00
#000000	1.70	21.00	1.00	21.00
##FFFFFF	12.37	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003BA3

Deuteranopia (green-blind)

#002E9D

Tritanopia (blue-blind)

#00455E

Achromatopsia (no color)

#343434

Design tokens & code

CSS

--color: #1f199f;
/* rgb */ color: rgb(31, 25, 159);
/* oklch */ color: oklch(34.8% 0.200 271.0);

Tailwind

colors: {
  custom: {
    50: '#745abd',
    500: '#1f199f',
    950: '#000000',
  },
}

SCSS

$custom: #1f199f;
$custom-light: #745abd;
$custom-dark: #000000;

JSON

{
  "hex": "#1f199f",
  "rgb": {
    "r": 31,
    "g": 25,
    "b": 159
  },
  "hsl": {
    "h": 242.687,
    "s": 72.826,
    "l": 36.078
  },
  "oklch": {
    "l": 0.34787,
    "c": 0.20003,
    "h": 271
  },
  "luminance": 0.0349
}

Semantic roles & 50–950 ramp

primary

#1F199F

secondary

#C0C64E

accent

#F038E7

background

#F7F5FB

surface

#EEE9F7

border

#C9C5D0

text

#0A0412

muted

#7C7981

Preview Lab

Preview with #1F199F

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

Preview Lab → · Contrast checker → · Palette generator →