#1A1FA1#1A1FA1

#1A1FA1 is a dark, vivid blue. Relative luminance 0.038; OKLCH L 35.5% C 0.199 H 269.0°. Best body text is #FFFFFF at 11.97:1 contrast (WCAG AA passes).

Color values

HEX	#1A1FA1
RGB	rgb(26, 31, 161)
HSL	hsl(238, 72%, 37%)
HSV	hsv(238, 84%, 63%)
CMYK	cmyk(83.9%, 80.7%, 0%, 36.9%)
CIE-LAB	lab(22.90, 45.31, -68.68)
CIE-LCH	lch(22.90, 82.28, 303.41°)
OKLab	oklab(35.48% -0.0034 -0.1989)
OKLCH	oklch(35.48% 0.199 269)
XYZ	xyz(7.3468, 3.7719, 34.0521)
Luminance	0.0377 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1A1FA1 #A19C1A

analogous

#1A63A1 #1A1FA1 #591AA1

triadic

#1A1FA1 #A11A1F #1FA11A

tetradic

#1A1FA1 #A11A63 #A19C1A #1AA159

square

#1A1FA1 #A11A63 #A19C1A #1AA159

split-complementary

#1A1FA1 #A1591A #63A11A

monochromatic

#090B38 #11156C #1A1FA1 #2329D6 #5258E3

Accessibility & contrast

On white

11.97

#1A1FA1 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.75

#1A1FA1 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1A1FA1

11.97:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1A1FA1	#FFFFFF	#000000	##FFFFFF
##1A1FA1	1.00	11.97	1.75	11.97
#FFFFFF	11.97	1.00	21.00	1.00
#000000	1.75	21.00	1.00	21.00
##FFFFFF	11.97	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003DA5

Deuteranopia (green-blind)

#00309F

Tritanopia (blue-blind)

#004860

Achromatopsia (no color)

#373737

Design tokens & code

CSS

--color: #1a1fa1;
/* rgb */ color: rgb(26, 31, 161);
/* oklch */ color: oklch(35.5% 0.199 269.0);

Tailwind

colors: {
  custom: {
    50: '#735ebe',
    500: '#1a1fa1',
    950: '#000000',
  },
}

SCSS

$custom: #1a1fa1;
$custom-light: #735ebe;
$custom-dark: #000000;

JSON

{
  "hex": "#1a1fa1",
  "rgb": {
    "r": 26,
    "g": 31,
    "b": 161
  },
  "hsl": {
    "h": 237.778,
    "s": 72.193,
    "l": 36.667
  },
  "oklch": {
    "l": 0.35482,
    "c": 0.19897,
    "h": 269
  },
  "luminance": 0.03773
}

Semantic roles & 50–950 ramp

primary

#1A1FA1

secondary

#C6C151

accent

#E839EF

background

#F7F5FB

surface

#EEE9F7

border

#C9C5D0

text

#0A0412

muted

#7C7981

Preview Lab

Preview with #1A1FA1

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

Preview Lab → · Contrast checker → · Palette generator →