#1F2882#1F2882

#1F2882 is a dark, vivid blue. Relative luminance 0.034; OKLCH L 33.7% C 0.149 H 271.1°. Best body text is #FFFFFF at 12.47:1 contrast (WCAG AA passes).

Color values

HEX	#1F2882
RGB	rgb(31, 40, 130)
HSL	hsl(235, 61%, 32%)
HSV	hsv(235, 76%, 51%)
CMYK	cmyk(76.2%, 69.2%, 0%, 49%)
CIE-LAB	lab(21.65, 29.34, -51.53)
CIE-LCH	lch(21.65, 59.30, 299.66°)
OKLab	oklab(33.65% 0.0029 -0.149)
OKLCH	oklch(33.65% 0.149 271.1)
XYZ	xyz(5.3518, 3.4200, 21.4928)
Luminance	0.0342 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1F2882 #82791F

analogous

#1F5A82 #1F2882 #481F82

triadic

#1F2882 #821F28 #28821F

tetradic

#1F2882 #821F5A #82791F #1F8248

square

#1F2882 #821F5A #82791F #1F8248

split-complementary

#1F2882 #82481F #5A821F

monochromatic

#070A1F #131951 #1F2882 #2B37B3 #4855D3

Accessibility & contrast

On white

12.47

#1F2882 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.68

#1F2882 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1F2882

12.47:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1F2882	#FFFFFF	#000000	##FFFFFF
##1F2882	1.00	12.47	1.68	12.47
#FFFFFF	12.47	1.00	21.00	1.00
#000000	1.68	21.00	1.00	21.00
##FFFFFF	12.47	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003985

Deuteranopia (green-blind)

#002F80

Tritanopia (blue-blind)

#004051

Achromatopsia (no color)

#343434

Design tokens & code

CSS

--color: #1f2882;
/* rgb */ color: rgb(31, 40, 130);
/* oklch */ color: oklch(33.7% 0.149 271.1);

Tailwind

colors: {
  custom: {
    50: '#6b62a7',
    500: '#1f2882',
    950: '#000000',
  },
}

SCSS

$custom: #1f2882;
$custom-light: #6b62a7;
$custom-dark: #000000;

JSON

{
  "hex": "#1f2882",
  "rgb": {
    "r": 31,
    "g": 40,
    "b": 130
  },
  "hsl": {
    "h": 234.545,
    "s": 61.491,
    "l": 31.569
  },
  "oklch": {
    "l": 0.33651,
    "c": 0.14907,
    "h": 271.1
  },
  "luminance": 0.03421
}

Semantic roles & 50–950 ramp

primary

#1F2882

secondary

#B5AB48

accent

#D643E5

background

#F6F5FA

surface

#ECEAF4

border

#C7C6CE

text

#080510

muted

#7A797F

Preview Lab

Preview with #1F2882

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

Preview Lab → · Contrast checker → · Palette generator →