#1A1F83#1A1F83

#1A1F83 is a dark, vivid blue. Relative luminance 0.028; OKLCH L 32.0% C 0.162 H 270.7°. Best body text is #FFFFFF at 13.40:1 contrast (WCAG AA passes).

Color values

HEX	#1A1F83
RGB	rgb(26, 31, 131)
HSL	hsl(237, 67%, 31%)
HSV	hsv(237, 80%, 51%)
CMYK	cmyk(80.2%, 76.3%, 0%, 48.6%)
CIE-LAB	lab(19.38, 34.98, -55.91)
CIE-LCH	lch(19.38, 65.95, 302.03°)
OKLab	oklab(31.97% 0.0019 -0.1619)
OKLCH	oklch(31.97% 0.162 270.7)
XYZ	xyz(5.0113, 2.8377, 21.7519)
Luminance	0.0284 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1A1F83 #837E1A

analogous

#1A5383 #1A1F83 #491A83

triadic

#1A1F83 #831A1F #1F831A

tetradic

#1A1F83 #831A53 #837E1A #1A8349

square

#1A1F83 #831A53 #837E1A #1A8349

split-complementary

#1A1F83 #83491A #53831A

monochromatic

#06071D #101350 #1A1F83 #242BB6 #3F46D9

Accessibility & contrast

On white

13.40

#1A1F83 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.57

#1A1F83 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1A1F83

13.40:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1A1F83	#FFFFFF	#000000	##FFFFFF
##1A1F83	1.00	13.40	1.57	13.40
#FFFFFF	13.40	1.00	21.00	1.00
#000000	1.57	21.00	1.00	21.00
##FFFFFF	13.40	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003486

Deuteranopia (green-blind)

#002A81

Tritanopia (blue-blind)

#003C4F

Achromatopsia (no color)

#2F2F2F

Design tokens & code

CSS

--color: #1a1f83;
/* rgb */ color: rgb(26, 31, 131);
/* oklch */ color: oklch(32.0% 0.162 270.7);

Tailwind

colors: {
  custom: {
    50: '#6b5ca8',
    500: '#1a1f83',
    950: '#000000',
  },
}

SCSS

$custom: #1a1f83;
$custom-light: #6b5ca8;
$custom-dark: #000000;

JSON

{
  "hex": "#1a1f83",
  "rgb": {
    "r": 26,
    "g": 31,
    "b": 131
  },
  "hsl": {
    "h": 237.143,
    "s": 66.879,
    "l": 30.784
  },
  "oklch": {
    "l": 0.31973,
    "c": 0.16193,
    "h": 270.7
  },
  "luminance": 0.02838
}

Semantic roles & 50–950 ramp

primary

#1A1F83

secondary

#B7B142

accent

#E23EEA

background

#F7F5FA

surface

#EDE9F4

border

#C8C5CE

text

#080410

muted

#7B797F

Preview Lab

Preview with #1A1F83

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

Preview Lab → · Contrast checker → · Palette generator →