#1F3082#1F3082

#1F3082 is a dark, vivid blue. Relative luminance 0.040; OKLCH L 35.2% C 0.139 H 268.9°. Best body text is #FFFFFF at 11.64:1 contrast (WCAG AA passes).

Color values

HEX	#1F3082
RGB	rgb(31, 48, 130)
HSL	hsl(230, 61%, 32%)
HSV	hsv(230, 76%, 51%)
CMYK	cmyk(76.2%, 63.1%, 0%, 49%)
CIE-LAB	lab(23.73, 23.91, -48.14)
CIE-LCH	lch(23.73, 53.75, 296.41°)
OKLab	oklab(35.17% -0.0026 -0.139)
OKLCH	oklch(35.17% 0.139 268.9)
XYZ	xyz(5.6499, 4.0163, 21.5922)
Luminance	0.0402 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1F3082 #82711F

analogous

#1F6282 #1F3082 #401F82

triadic

#1F3082 #821F30 #30821F

tetradic

#1F3082 #821F62 #82711F #1F8240

square

#1F3082 #821F62 #82711F #1F8240

split-complementary

#1F3082 #82401F #62821F

monochromatic

#070C1F #131E51 #1F3082 #2B42B3 #4860D3

Accessibility & contrast

On white

11.64

#1F3082 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.80

#1F3082 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1F3082

11.64:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1F3082	#FFFFFF	#000000	##FFFFFF
##1F3082	1.00	11.64	1.80	11.64
#FFFFFF	11.64	1.00	21.00	1.00
#000000	1.80	21.00	1.00	21.00
##FFFFFF	11.64	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003D85

Deuteranopia (green-blind)

#003480

Tritanopia (blue-blind)

#004554

Achromatopsia (no color)

#383838

Design tokens & code

CSS

--color: #1f3082;
/* rgb */ color: rgb(31, 48, 130);
/* oklch */ color: oklch(35.2% 0.139 268.9);

Tailwind

colors: {
  custom: {
    50: '#6a68a7',
    500: '#1f3082',
    950: '#000000',
  },
}

SCSS

$custom: #1f3082;
$custom-light: #6a68a7;
$custom-dark: #000000;

JSON

{
  "hex": "#1f3082",
  "rgb": {
    "r": 31,
    "g": 48,
    "b": 130
  },
  "hsl": {
    "h": 229.697,
    "s": 61.491,
    "l": 31.569
  },
  "oklch": {
    "l": 0.35173,
    "c": 0.13906,
    "h": 268.9
  },
  "luminance": 0.04017
}

Semantic roles & 50–950 ramp

primary

#1F3082

secondary

#B5A248

accent

#C943E5

background

#F6F6FA

surface

#ECEBF4

border

#C7C6CE

text

#07060F

muted

#7A7A7F

Preview Lab

Preview with #1F3082

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

Preview Lab → · Contrast checker → · Palette generator →