#1F2184#1F2184

#1F2184 is a dark, vivid blue. Relative luminance 0.030; OKLCH L 32.7% C 0.160 H 272.4°. Best body text is #FFFFFF at 13.05:1 contrast (WCAG AA passes).

Color values

HEX	#1F2184
RGB	rgb(31, 33, 132)
HSL	hsl(239, 62%, 32%)
HSV	hsv(239, 77%, 52%)
CMYK	cmyk(76.5%, 75%, 0%, 48.2%)
CIE-LAB	lab(20.22, 34.57, -55.15)
CIE-LCH	lch(20.22, 65.09, 302.08°)
OKLab	oklab(32.68% 0.0067 -0.1596)
OKLCH	oklch(32.68% 0.16 272.4)
XYZ	xyz(5.2724, 3.0444, 22.1351)
Luminance	0.0305 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1F2184 #84821F

analogous

#1F5484 #1F2184 #501F84

triadic

#1F2184 #841F21 #21841F

tetradic

#1F2184 #841F54 #84821F #1F8450

square

#1F2184 #841F54 #84821F #1F8450

split-complementary

#1F2184 #84501F #54841F

monochromatic

#080821 #131552 #1F2184 #2B2DB6 #494CD4

Accessibility & contrast

On white

13.05

#1F2184 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.61

#1F2184 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1F2184

13.05:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1F2184	#FFFFFF	#000000	##FFFFFF
##1F2184	1.00	13.05	1.61	13.05
#FFFFFF	13.05	1.00	21.00	1.00
#000000	1.61	21.00	1.00	21.00
##FFFFFF	13.05	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003687

Deuteranopia (green-blind)

#002C82

Tritanopia (blue-blind)

#003D50

Achromatopsia (no color)

#313131

Design tokens & code

CSS

--color: #1f2184;
/* rgb */ color: rgb(31, 33, 132);
/* oklch */ color: oklch(32.7% 0.160 272.4);

Tailwind

colors: {
  custom: {
    50: '#6c5da9',
    500: '#1f2184',
    950: '#000000',
  },
}

SCSS

$custom: #1f2184;
$custom-light: #6c5da9;
$custom-dark: #000000;

JSON

{
  "hex": "#1f2184",
  "rgb": {
    "r": 31,
    "g": 33,
    "b": 132
  },
  "hsl": {
    "h": 238.812,
    "s": 61.963,
    "l": 31.961
  },
  "oklch": {
    "l": 0.32682,
    "c": 0.15974,
    "h": 272.4
  },
  "luminance": 0.03045
}

Semantic roles & 50–950 ramp

primary

#1F2184

secondary

#B7B448

accent

#E243E5

background

#F7F5FA

surface

#EDE9F4

border

#C8C5CE

text

#080410

muted

#7B797F

Preview Lab

Preview with #1F2184

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

Preview Lab → · Contrast checker → · Palette generator →