#1F3382#1F3382

#1F3382 is a dark, vivid blue. Relative luminance 0.043; OKLCH L 35.8% C 0.135 H 268.0°. Best body text is #FFFFFF at 11.33:1 contrast (WCAG AA passes).

Color values

HEX	#1F3382
RGB	rgb(31, 51, 130)
HSL	hsl(228, 61%, 32%)
HSV	hsv(228, 76%, 51%)
CMYK	cmyk(76.2%, 60.8%, 0%, 49%)
CIE-LAB	lab(24.54, 21.82, -46.80)
CIE-LCH	lch(24.54, 51.64, 295.00°)
OKLab	oklab(35.78% -0.0048 -0.1351)
OKLCH	oklch(35.78% 0.135 268)
XYZ	xyz(5.7768, 4.2700, 21.6345)
Luminance	0.0427 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1F3382 #826E1F

analogous

#1F6582 #1F3382 #3D1F82

triadic

#1F3382 #821F33 #33821F

tetradic

#1F3382 #821F65 #826E1F #1F823D

square

#1F3382 #821F65 #826E1F #1F823D

split-complementary

#1F3382 #823D1F #65821F

monochromatic

#070C1F #132051 #1F3382 #2B46B3 #4864D3

Accessibility & contrast

On white

11.33

#1F3382 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.85

#1F3382 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1F3382

11.33:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1F3382	#FFFFFF	#000000	##FFFFFF
##1F3382	1.00	11.33	1.85	11.33
#FFFFFF	11.33	1.00	21.00	1.00
#000000	1.85	21.00	1.00	21.00
##FFFFFF	11.33	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003F85

Deuteranopia (green-blind)

#003680

Tritanopia (blue-blind)

#004755

Achromatopsia (no color)

#3A3A3A

Design tokens & code

CSS

--color: #1f3382;
/* rgb */ color: rgb(31, 51, 130);
/* oklch */ color: oklch(35.8% 0.135 268.0);

Tailwind

colors: {
  custom: {
    50: '#6a6aa7',
    500: '#1f3382',
    950: '#000000',
  },
}

SCSS

$custom: #1f3382;
$custom-light: #6a6aa7;
$custom-dark: #000000;

JSON

{
  "hex": "#1f3382",
  "rgb": {
    "r": 31,
    "g": 51,
    "b": 130
  },
  "hsl": {
    "h": 227.879,
    "s": 61.491,
    "l": 31.569
  },
  "oklch": {
    "l": 0.35782,
    "c": 0.13517,
    "h": 268
  },
  "luminance": 0.04271
}

Semantic roles & 50–950 ramp

primary

#1F3382

secondary

#B59F48

accent

#C443E5

background

#F6F6FA

surface

#ECEBF4

border

#C7C6CE

text

#07060F

muted

#7A7A7F

Preview Lab

Preview with #1F3382

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

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