#1A1F9F#1A1F9F

#1A1F9F is a dark, vivid blue. Relative luminance 0.037; OKLCH L 35.2% C 0.197 H 269.1°. Best body text is #FFFFFF at 12.06:1 contrast (WCAG AA passes).

Color values

HEX	#1A1F9F
RGB	rgb(26, 31, 159)
HSL	hsl(238, 72%, 36%)
HSV	hsv(238, 84%, 62%)
CMYK	cmyk(83.6%, 80.5%, 0%, 37.6%)
CIE-LAB	lab(22.66, 44.65, -67.86)
CIE-LCH	lch(22.66, 81.23, 303.34°)
OKLab	oklab(35.24% -0.0031 -0.1966)
OKLCH	oklch(35.24% 0.197 269.1)
XYZ	xyz(7.1719, 3.7019, 33.1307)
Luminance	0.0370 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1A1F9F #9F9A1A

analogous

#1A629F #1A1F9F #581A9F

triadic

#1A1F9F #9F1A1F #1F9F1A

tetradic

#1A1F9F #9F1A62 #9F9A1A #1A9F58

square

#1A1F9F #9F1A62 #9F9A1A #1A9F58

split-complementary

#1A1F9F #9F581A #629F1A

monochromatic

#090A36 #11156A #1A1F9F #2329D4 #5156E3

Accessibility & contrast

On white

12.06

#1A1F9F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.74

#1A1F9F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1A1F9F

12.06:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1A1F9F	#FFFFFF	#000000	##FFFFFF
##1A1F9F	1.00	12.06	1.74	12.06
#FFFFFF	12.06	1.00	21.00	1.00
#000000	1.74	21.00	1.00	21.00
##FFFFFF	12.06	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003DA3

Deuteranopia (green-blind)

#002F9D

Tritanopia (blue-blind)

#00475F

Achromatopsia (no color)

#363636

Design tokens & code

CSS

--color: #1a1f9f;
/* rgb */ color: rgb(26, 31, 159);
/* oklch */ color: oklch(35.2% 0.197 269.1);

Tailwind

colors: {
  custom: {
    50: '#725dbd',
    500: '#1a1f9f',
    950: '#000000',
  },
}

SCSS

$custom: #1a1f9f;
$custom-light: #725dbd;
$custom-dark: #000000;

JSON

{
  "hex": "#1a1f9f",
  "rgb": {
    "r": 26,
    "g": 31,
    "b": 159
  },
  "hsl": {
    "h": 237.744,
    "s": 71.892,
    "l": 36.275
  },
  "oklch": {
    "l": 0.35243,
    "c": 0.1966,
    "h": 269.1
  },
  "luminance": 0.03703
}

Semantic roles & 50–950 ramp

primary

#1A1F9F

secondary

#C5C150

accent

#E839EF

background

#F7F5FB

surface

#EEE9F7

border

#C9C5D0

text

#0A0412

muted

#7C7981

Preview Lab

Preview with #1A1F9F

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

Preview Lab → · Contrast checker → · Palette generator →