#1F3886#1F3886

#1F3886 is a dark, vivid blue. Relative luminance 0.048; OKLCH L 37.2% C 0.134 H 266.3°. Best body text is #FFFFFF at 10.67:1 contrast (WCAG AA passes).

Color values

HEX	#1F3886
RGB	rgb(31, 56, 134)
HSL	hsl(225, 62%, 32%)
HSV	hsv(225, 77%, 53%)
CMYK	cmyk(76.9%, 58.2%, 0%, 47.5%)
CIE-LAB	lab(26.27, 19.93, -46.49)
CIE-LCH	lch(26.27, 50.58, 293.20°)
OKLab	oklab(37.18% -0.0086 -0.1341)
OKLCH	oklch(37.18% 0.134 266.3)
XYZ	xyz(6.2808, 4.8402, 23.1529)
Luminance	0.0484 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1F3886 #866D1F

analogous

#1F6B86 #1F3886 #3A1F86

triadic

#1F3886 #861F38 #38861F

tetradic

#1F3886 #861F6B #866D1F #1F863A

square

#1F3886 #861F6B #866D1F #1F863A

split-complementary

#1F3886 #863A1F #6B861F

monochromatic

#080E23 #142354 #1F3886 #2A4DB8 #4A6CD5

Accessibility & contrast

On white

10.67

#1F3886 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.97

#1F3886 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1F3886

10.67:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1F3886	#FFFFFF	#000000	##FFFFFF
##1F3886	1.00	10.67	1.97	10.67
#FFFFFF	10.67	1.00	21.00	1.00
#000000	1.97	21.00	1.00	21.00
##FFFFFF	10.67	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004389

Deuteranopia (green-blind)

#003A84

Tritanopia (blue-blind)

#004B59

Achromatopsia (no color)

#3E3E3E

Design tokens & code

CSS

--color: #1f3886;
/* rgb */ color: rgb(31, 56, 134);
/* oklch */ color: oklch(37.2% 0.134 266.3);

Tailwind

colors: {
  custom: {
    50: '#6b6eaa',
    500: '#1f3886',
    950: '#000000',
  },
}

SCSS

$custom: #1f3886;
$custom-light: #6b6eaa;
$custom-dark: #000000;

JSON

{
  "hex": "#1f3886",
  "rgb": {
    "r": 31,
    "g": 56,
    "b": 134
  },
  "hsl": {
    "h": 225.437,
    "s": 62.424,
    "l": 32.353
  },
  "oklch": {
    "l": 0.37181,
    "c": 0.13435,
    "h": 266.3
  },
  "luminance": 0.04841
}

Semantic roles & 50–950 ramp

primary

#1F3886

secondary

#B89D49

accent

#BE42E5

background

#F6F6FA

surface

#ECEBF4

border

#C7C6CE

text

#080710

muted

#7A7A7F

Preview Lab

Preview with #1F3886

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

Preview Lab → · Contrast checker → · Palette generator →