#1F2785#1F2785

#1F2785 is a dark, vivid blue. Relative luminance 0.034; OKLCH L 33.8% C 0.154 H 271.2°. Best body text is #FFFFFF at 12.45:1 contrast (WCAG AA passes).

Color values

HEX	#1F2785
RGB	rgb(31, 39, 133)
HSL	hsl(235, 62%, 32%)
HSV	hsv(235, 77%, 52%)
CMYK	cmyk(76.7%, 70.7%, 0%, 47.8%)
CIE-LAB	lab(21.71, 31.12, -53.33)
CIE-LCH	lch(21.71, 61.75, 300.27°)
OKLab	oklab(33.78% 0.0032 -0.1543)
OKLCH	oklch(33.78% 0.154 271.2)
XYZ	xyz(5.5228, 3.4352, 22.5578)
Luminance	0.0344 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1F2785 #857D1F

analogous

#1F5A85 #1F2785 #4A1F85

triadic

#1F2785 #851F27 #27851F

tetradic

#1F2785 #851F5A #857D1F #1F854A

square

#1F2785 #851F5A #857D1F #1F854A

split-complementary

#1F2785 #854A1F #5A851F

monochromatic

#080A22 #131853 #1F2785 #2B36B7 #4A55D5

Accessibility & contrast

On white

12.45

#1F2785 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.69

#1F2785 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1F2785

12.45:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1F2785	#FFFFFF	#000000	##FFFFFF
##1F2785	1.00	12.45	1.69	12.45
#FFFFFF	12.45	1.00	21.00	1.00
#000000	1.69	21.00	1.00	21.00
##FFFFFF	12.45	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003988

Deuteranopia (green-blind)

#002F83

Tritanopia (blue-blind)

#004152

Achromatopsia (no color)

#343434

Design tokens & code

CSS

--color: #1f2785;
/* rgb */ color: rgb(31, 39, 133);
/* oklch */ color: oklch(33.8% 0.154 271.2);

Tailwind

colors: {
  custom: {
    50: '#6c61a9',
    500: '#1f2785',
    950: '#000000',
  },
}

SCSS

$custom: #1f2785;
$custom-light: #6c61a9;
$custom-dark: #000000;

JSON

{
  "hex": "#1f2785",
  "rgb": {
    "r": 31,
    "g": 39,
    "b": 133
  },
  "hsl": {
    "h": 235.294,
    "s": 62.195,
    "l": 32.157
  },
  "oklch": {
    "l": 0.33782,
    "c": 0.15433,
    "h": 271.2
  },
  "luminance": 0.03436
}

Semantic roles & 50–950 ramp

primary

#1F2785

secondary

#B7AF49

accent

#D943E5

background

#F7F5FA

surface

#EDEAF4

border

#C8C6CE

text

#080510

muted

#7B797F

Preview Lab

Preview with #1F2785

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

Preview Lab → · Contrast checker → · Palette generator →