#1F3282#1F3282

#1F3282 is a dark, vivid blue. Relative luminance 0.042; OKLCH L 35.6% C 0.136 H 268.3°. Best body text is #FFFFFF at 11.43:1 contrast (WCAG AA passes).

Color values

HEX	#1F3282
RGB	rgb(31, 50, 130)
HSL	hsl(228, 61%, 32%)
HSV	hsv(228, 76%, 51%)
CMYK	cmyk(76.2%, 61.5%, 0%, 49%)
CIE-LAB	lab(24.27, 22.52, -47.25)
CIE-LCH	lch(24.27, 52.34, 295.48°)
OKLab	oklab(35.58% -0.0041 -0.1364)
OKLCH	oklch(35.58% 0.136 268.3)
XYZ	xyz(5.7335, 4.1836, 21.6201)
Luminance	0.0418 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1F3282 #826F1F

analogous

#1F6482 #1F3282 #3E1F82

triadic

#1F3282 #821F32 #32821F

tetradic

#1F3282 #821F64 #826F1F #1F823E

square

#1F3282 #821F64 #826F1F #1F823E

split-complementary

#1F3282 #823E1F #64821F

monochromatic

#070C1F #131F51 #1F3282 #2B45B3 #4863D3

Accessibility & contrast

On white

11.43

#1F3282 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.84

#1F3282 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1F3282

11.43:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1F3282	#FFFFFF	#000000	##FFFFFF
##1F3282	1.00	11.43	1.84	11.43
#FFFFFF	11.43	1.00	21.00	1.00
#000000	1.84	21.00	1.00	21.00
##FFFFFF	11.43	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003E85

Deuteranopia (green-blind)

#003580

Tritanopia (blue-blind)

#004655

Achromatopsia (no color)

#3A3A3A

Design tokens & code

CSS

--color: #1f3282;
/* rgb */ color: rgb(31, 50, 130);
/* oklch */ color: oklch(35.6% 0.136 268.3);

Tailwind

colors: {
  custom: {
    50: '#6a69a7',
    500: '#1f3282',
    950: '#000000',
  },
}

SCSS

$custom: #1f3282;
$custom-light: #6a69a7;
$custom-dark: #000000;

JSON

{
  "hex": "#1f3282",
  "rgb": {
    "r": 31,
    "g": 50,
    "b": 130
  },
  "hsl": {
    "h": 228.485,
    "s": 61.491,
    "l": 31.569
  },
  "oklch": {
    "l": 0.35577,
    "c": 0.13647,
    "h": 268.3
  },
  "luminance": 0.04184
}

Semantic roles & 50–950 ramp

primary

#1F3282

secondary

#B5A048

accent

#C643E5

background

#F6F6FA

surface

#ECEBF4

border

#C7C6CE

text

#07060F

muted

#7A7A7F

Preview Lab

Preview with #1F3282

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

Preview Lab → · Contrast checker → · Palette generator →