#1F4182#1F4182

#1F4182 is a dark, moderate blue. Relative luminance 0.057; OKLCH L 38.8% C 0.117 H 261.8°. Best body text is #FFFFFF at 9.83:1 contrast (WCAG AA passes).

Color values

HEX	#1F4182
RGB	rgb(31, 65, 130)
HSL	hsl(219, 61%, 32%)
HSV	hsv(219, 76%, 51%)
CMYK	cmyk(76.2%, 50%, 0%, 49%)
CIE-LAB	lab(28.60, 12.06, -40.23)
CIE-LCH	lch(28.60, 42.00, 286.69°)
OKLab	oklab(38.85% -0.0166 -0.1155)
OKLCH	oklch(38.85% 0.117 261.8)
XYZ	xyz(6.4832, 5.6829, 21.8700)
Luminance	0.0568 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1F4182 #82601F

analogous

#1F7382 #1F4182 #2F1F82

triadic

#1F4182 #821F41 #41821F

tetradic

#1F4182 #821F73 #82601F #1F822F

square

#1F4182 #821F73 #82601F #1F822F

split-complementary

#1F4182 #822F1F #73821F

monochromatic

#07101F #132851 #1F4182 #2B5AB3 #4878D3

Accessibility & contrast

On white

9.83

#1F4182 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.14

#1F4182 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1F4182

9.83:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1F4182	#FFFFFF	#000000	##FFFFFF
##1F4182	1.00	9.83	2.14	9.83
#FFFFFF	9.83	1.00	21.00	1.00
#000000	2.14	21.00	1.00	21.00
##FFFFFF	9.83	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#1D4884

Deuteranopia (green-blind)

#003F81

Tritanopia (blue-blind)

#00505B

Achromatopsia (no color)

#434343

Design tokens & code

CSS

--color: #1f4182;
/* rgb */ color: rgb(31, 65, 130);
/* oklch */ color: oklch(38.8% 0.117 261.8);

Tailwind

colors: {
  custom: {
    50: '#6975a7',
    500: '#1f4182',
    950: '#000000',
  },
}

SCSS

$custom: #1f4182;
$custom-light: #6975a7;
$custom-dark: #000000;

JSON

{
  "hex": "#1f4182",
  "rgb": {
    "r": 31,
    "g": 65,
    "b": 130
  },
  "hsl": {
    "h": 219.394,
    "s": 61.491,
    "l": 31.569
  },
  "oklch": {
    "l": 0.38848,
    "c": 0.11671,
    "h": 261.8
  },
  "luminance": 0.05684
}

Semantic roles & 50–950 ramp

primary

#1F4182

secondary

#B58F48

accent

#AD43E5

background

#F6F7FA

surface

#ECEDF4

border

#C7C8CE

text

#07080F

muted

#7A7B7F

Preview Lab

Preview with #1F4182

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

Preview Lab → · Contrast checker → · Palette generator →