#1F3682#1F3682

#1F3682 is a dark, vivid blue. Relative luminance 0.045; OKLCH L 36.4% C 0.131 H 266.9°. Best body text is #FFFFFF at 11.01:1 contrast (WCAG AA passes).

Color values

HEX	#1F3682
RGB	rgb(31, 54, 130)
HSL	hsl(226, 61%, 32%)
HSV	hsv(226, 76%, 51%)
CMYK	cmyk(76.2%, 58.5%, 0%, 49%)
CIE-LAB	lab(25.38, 19.73, -45.44)
CIE-LCH	lch(25.38, 49.53, 293.47°)
OKLab	oklab(36.41% -0.0072 -0.131)
OKLCH	oklch(36.41% 0.131 266.9)
XYZ	xyz(5.9121, 4.5407, 21.6796)
Luminance	0.0454 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1F3682 #826B1F

analogous

#1F6882 #1F3682 #3A1F82

triadic

#1F3682 #821F36 #36821F

tetradic

#1F3682 #821F68 #826B1F #1F823A

square

#1F3682 #821F68 #826B1F #1F823A

split-complementary

#1F3682 #823A1F #68821F

monochromatic

#070D1F #132151 #1F3682 #2B4BB3 #4868D3

Accessibility & contrast

On white

11.01

#1F3682 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.91

#1F3682 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1F3682

11.01:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1F3682	#FFFFFF	#000000	##FFFFFF
##1F3682	1.00	11.01	1.91	11.01
#FFFFFF	11.01	1.00	21.00	1.00
#000000	1.91	21.00	1.00	21.00
##FFFFFF	11.01	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004185

Deuteranopia (green-blind)

#003881

Tritanopia (blue-blind)

#004956

Achromatopsia (no color)

#3C3C3C

Design tokens & code

CSS

--color: #1f3682;
/* rgb */ color: rgb(31, 54, 130);
/* oklch */ color: oklch(36.4% 0.131 266.9);

Tailwind

colors: {
  custom: {
    50: '#6a6ca7',
    500: '#1f3682',
    950: '#000000',
  },
}

SCSS

$custom: #1f3682;
$custom-light: #6a6ca7;
$custom-dark: #000000;

JSON

{
  "hex": "#1f3682",
  "rgb": {
    "r": 31,
    "g": 54,
    "b": 130
  },
  "hsl": {
    "h": 226.061,
    "s": 61.491,
    "l": 31.569
  },
  "oklch": {
    "l": 0.3641,
    "c": 0.13122,
    "h": 266.9
  },
  "luminance": 0.04541
}

Semantic roles & 50–950 ramp

primary

#1F3682

secondary

#B59C48

accent

#BF43E5

background

#F6F6FA

surface

#ECEBF4

border

#C7C6CE

text

#07070F

muted

#7A7A7F

Preview Lab

Preview with #1F3682

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

Preview Lab → · Contrast checker → · Palette generator →