#1F198C#1F198C

#1F198C is a dark, vivid blue. Relative luminance 0.029; OKLCH L 32.5% C 0.177 H 272.7°. Best body text is #FFFFFF at 13.32:1 contrast (WCAG AA passes).

Color values

HEX	#1F198C
RGB	rgb(31, 25, 140)
HSL	hsl(243, 70%, 32%)
HSV	hsv(243, 82%, 55%)
CMYK	cmyk(77.9%, 82.1%, 0%, 45.1%)
CIE-LAB	lab(19.55, 41.82, -61.27)
CIE-LCH	lch(19.55, 74.19, 304.32°)
OKLab	oklab(32.48% 0.0083 -0.1773)
OKLCH	oklch(32.48% 0.177 272.7)
XYZ	xyz(5.6447, 2.8794, 25.0641)
Luminance	0.0288 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1F198C #868C19

analogous

#194D8C #1F198C #58198C

triadic

#1F198C #8C1F19 #198C1F

tetradic

#1F198C #8C194D #868C19 #198C58

square

#1F198C #8C194D #868C19 #198C58

split-complementary

#1F198C #8C5819 #4D8C19

monochromatic

#080624 #141058 #1F198C #2A22C0 #4A42DD

Accessibility & contrast

On white

13.32

#1F198C on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.58

#1F198C on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1F198C

13.32:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1F198C	#FFFFFF	#000000	##FFFFFF
##1F198C	1.00	13.32	1.58	13.32
#FFFFFF	13.32	1.00	21.00	1.00
#000000	1.58	21.00	1.00	21.00
##FFFFFF	13.32	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00358F

Deuteranopia (green-blind)

#002A8A

Tritanopia (blue-blind)

#003D53

Achromatopsia (no color)

#2F2F2F

Design tokens & code

CSS

--color: #1f198c;
/* rgb */ color: rgb(31, 25, 140);
/* oklch */ color: oklch(32.5% 0.177 272.7);

Tailwind

colors: {
  custom: {
    50: '#6f59af',
    500: '#1f198c',
    950: '#000000',
  },
}

SCSS

$custom: #1f198c;
$custom-light: #6f59af;
$custom-dark: #000000;

JSON

{
  "hex": "#1f198c",
  "rgb": {
    "r": 31,
    "g": 25,
    "b": 140
  },
  "hsl": {
    "h": 243.13,
    "s": 69.697,
    "l": 32.353
  },
  "oklch": {
    "l": 0.32482,
    "c": 0.17749,
    "h": 272.7
  },
  "luminance": 0.0288
}

Semantic roles & 50–950 ramp

primary

#1F198C

secondary

#B8BE43

accent

#ED3BE3

background

#F7F5FA

surface

#EDE9F5

border

#C8C5CF

text

#090411

muted

#7B7980

Preview Lab

Preview with #1F198C

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

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