#1931A1#1931A1

#1931A1 is a dark, vivid blue. Relative luminance 0.050; OKLCH L 38.2% C 0.181 H 266.9°. Best body text is #FFFFFF at 10.52:1 contrast (WCAG AA passes).

Color values

HEX	#1931A1
RGB	rgb(25, 49, 161)
HSL	hsl(229, 73%, 36%)
HSV	hsv(229, 84%, 63%)
CMYK	cmyk(84.5%, 69.6%, 0%, 36.9%)
CIE-LAB	lab(26.66, 34.58, -62.46)
CIE-LCH	lch(26.66, 71.40, 298.97°)
OKLab	oklab(38.16% -0.0099 -0.181)
OKLCH	oklch(38.16% 0.181 266.9)
XYZ	xyz(7.9300, 4.9755, 34.2537)
Luminance	0.0498 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1931A1 #A18919

analogous

#1975A1 #1931A1 #4519A1

triadic

#1931A1 #A11931 #31A119

tetradic

#1931A1 #A11975 #A18919 #19A145

square

#1931A1 #A11975 #A18919 #19A145

split-complementary

#1931A1 #A14519 #75A119

monochromatic

#091137 #11216C #1931A1 #2141D6 #506BE4

Accessibility & contrast

On white

10.52

#1931A1 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.00

#1931A1 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1931A1

10.52:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1931A1	#FFFFFF	#000000	##FFFFFF
##1931A1	1.00	10.52	2.00	10.52
#FFFFFF	10.52	1.00	21.00	1.00
#000000	2.00	21.00	1.00	21.00
##FFFFFF	10.52	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0046A4

Deuteranopia (green-blind)

#00399F

Tritanopia (blue-blind)

#005065

Achromatopsia (no color)

#3F3F3F

Design tokens & code

CSS

--color: #1931a1;
/* rgb */ color: rgb(25, 49, 161);
/* oklch */ color: oklch(38.2% 0.181 266.9);

Tailwind

colors: {
  custom: {
    50: '#7169be',
    500: '#1931a1',
    950: '#000000',
  },
}

SCSS

$custom: #1931a1;
$custom-light: #7169be;
$custom-dark: #000000;

JSON

{
  "hex": "#1931a1",
  "rgb": {
    "r": 25,
    "g": 49,
    "b": 161
  },
  "hsl": {
    "h": 229.412,
    "s": 73.118,
    "l": 36.471
  },
  "oklch": {
    "l": 0.38157,
    "c": 0.1813,
    "h": 266.9
  },
  "luminance": 0.04977
}

Semantic roles & 50–950 ramp

primary

#1931A1

secondary

#C6B14F

accent

#CF38F0

background

#F7F6FB

surface

#EEEBF7

border

#C9C6D0

text

#090612

muted

#7B7A81

Preview Lab

Preview with #1931A1

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

Preview Lab → · Contrast checker → · Palette generator →