#1F3986#1F3986

#1F3986 is a dark, vivid blue. Relative luminance 0.049; OKLCH L 37.4% C 0.133 H 266.0°. Best body text is #FFFFFF at 10.56:1 contrast (WCAG AA passes).

Color values

HEX	#1F3986
RGB	rgb(31, 57, 134)
HSL	hsl(225, 62%, 32%)
HSV	hsv(225, 77%, 53%)
CMYK	cmyk(76.9%, 57.5%, 0%, 47.5%)
CIE-LAB	lab(26.56, 19.23, -46.03)
CIE-LCH	lch(26.56, 49.88, 292.68°)
OKLab	oklab(37.39% -0.0094 -0.1327)
OKLCH	oklch(37.39% 0.133 266)
XYZ	xyz(6.3298, 4.9381, 23.1692)
Luminance	0.0494 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1F3986 #866C1F

analogous

#1F6D86 #1F3986 #381F86

triadic

#1F3986 #861F39 #39861F

tetradic

#1F3986 #861F6D #866C1F #1F8638

square

#1F3986 #861F6D #866C1F #1F8638

split-complementary

#1F3986 #86381F #6D861F

monochromatic

#080F23 #142454 #1F3986 #2A4EB8 #4A6DD5

Accessibility & contrast

On white

10.56

#1F3986 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.99

#1F3986 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1F3986

10.56:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1F3986	#FFFFFF	#000000	##FFFFFF
##1F3986	1.00	10.56	1.99	10.56
#FFFFFF	10.56	1.00	21.00	1.00
#000000	1.99	21.00	1.00	21.00
##FFFFFF	10.56	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004489

Deuteranopia (green-blind)

#003A84

Tritanopia (blue-blind)

#004C59

Achromatopsia (no color)

#3F3F3F

Design tokens & code

CSS

--color: #1f3986;
/* rgb */ color: rgb(31, 57, 134);
/* oklch */ color: oklch(37.4% 0.133 266.0);

Tailwind

colors: {
  custom: {
    50: '#6b6eaa',
    500: '#1f3986',
    950: '#000000',
  },
}

SCSS

$custom: #1f3986;
$custom-light: #6b6eaa;
$custom-dark: #000000;

JSON

{
  "hex": "#1f3986",
  "rgb": {
    "r": 31,
    "g": 57,
    "b": 134
  },
  "hsl": {
    "h": 224.854,
    "s": 62.424,
    "l": 32.353
  },
  "oklch": {
    "l": 0.37394,
    "c": 0.13304,
    "h": 266
  },
  "luminance": 0.04939
}

Semantic roles & 50–950 ramp

primary

#1F3986

secondary

#B89C49

accent

#BC42E5

background

#F6F6FA

surface

#ECECF4

border

#C7C7CE

text

#080710

muted

#7A7A7F

Preview Lab

Preview with #1F3986

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

Preview Lab → · Contrast checker → · Palette generator →