#1F2582#1F2582

#1F2582 is a dark, vivid blue. Relative luminance 0.032; OKLCH L 33.1% C 0.153 H 271.8°. Best body text is #FFFFFF at 12.76:1 contrast (WCAG AA passes).

Color values

HEX	#1F2582
RGB	rgb(31, 37, 130)
HSL	hsl(236, 61%, 32%)
HSV	hsv(236, 76%, 51%)
CMYK	cmyk(76.2%, 71.5%, 0%, 49%)
CIE-LAB	lab(20.93, 31.31, -52.73)
CIE-LCH	lch(20.93, 61.32, 300.70°)
OKLab	oklab(33.12% 0.0048 -0.1525)
OKLCH	oklch(33.12% 0.153 271.8)
XYZ	xyz(5.2545, 3.2256, 21.4604)
Luminance	0.0323 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1F2582 #827C1F

analogous

#1F5782 #1F2582 #4B1F82

triadic

#1F2582 #821F25 #25821F

tetradic

#1F2582 #821F57 #827C1F #1F824B

square

#1F2582 #821F57 #827C1F #1F824B

split-complementary

#1F2582 #824B1F #57821F

monochromatic

#07091F #131751 #1F2582 #2B33B3 #4850D3

Accessibility & contrast

On white

12.76

#1F2582 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.65

#1F2582 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1F2582

12.76:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1F2582	#FFFFFF	#000000	##FFFFFF
##1F2582	1.00	12.76	1.65	12.76
#FFFFFF	12.76	1.00	21.00	1.00
#000000	1.65	21.00	1.00	21.00
##FFFFFF	12.76	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003785

Deuteranopia (green-blind)

#002E80

Tritanopia (blue-blind)

#003F50

Achromatopsia (no color)

#323232

Design tokens & code

CSS

--color: #1f2582;
/* rgb */ color: rgb(31, 37, 130);
/* oklch */ color: oklch(33.1% 0.153 271.8);

Tailwind

colors: {
  custom: {
    50: '#6c60a7',
    500: '#1f2582',
    950: '#000000',
  },
}

SCSS

$custom: #1f2582;
$custom-light: #6c60a7;
$custom-dark: #000000;

JSON

{
  "hex": "#1f2582",
  "rgb": {
    "r": 31,
    "g": 37,
    "b": 130
  },
  "hsl": {
    "h": 236.364,
    "s": 61.491,
    "l": 31.569
  },
  "oklch": {
    "l": 0.33124,
    "c": 0.15261,
    "h": 271.8
  },
  "luminance": 0.03226
}

Semantic roles & 50–950 ramp

primary

#1F2582

secondary

#B5AE48

accent

#DB43E5

background

#F7F5FA

surface

#EDE9F4

border

#C8C5CE

text

#080510

muted

#7B797F

Preview Lab

Preview with #1F2582

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

Preview Lab → · Contrast checker → · Palette generator →