#1F2189#1F2189

#1F2189 is a dark, vivid blue. Relative luminance 0.032; OKLCH L 33.2% C 0.166 H 272.0°. Best body text is #FFFFFF at 12.83:1 contrast (WCAG AA passes).

Color values

HEX	#1F2189
RGB	rgb(31, 33, 137)
HSL	hsl(239, 63%, 33%)
HSV	hsv(239, 77%, 54%)
CMYK	cmyk(77.4%, 75.9%, 0%, 46.3%)
CIE-LAB	lab(20.77, 36.34, -57.39)
CIE-LCH	lch(20.77, 67.92, 302.34°)
OKLab	oklab(33.24% 0.0058 -0.1661)
OKLCH	oklch(33.24% 0.166 272)
XYZ	xyz(5.6228, 3.1846, 23.9804)
Luminance	0.0319 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1F2189 #89871F

analogous

#1F5689 #1F2189 #521F89

triadic

#1F2189 #891F21 #21891F

tetradic

#1F2189 #891F56 #89871F #1F8952

square

#1F2189 #891F56 #89871F #1F8952

split-complementary

#1F2189 #89521F #56891F

monochromatic

#080925 #141557 #1F2189 #2A2DBB #4C4FD6

Accessibility & contrast

On white

12.83

#1F2189 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.64

#1F2189 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1F2189

12.83:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1F2189	#FFFFFF	#000000	##FFFFFF
##1F2189	1.00	12.83	1.64	12.83
#FFFFFF	12.83	1.00	21.00	1.00
#000000	1.64	21.00	1.00	21.00
##FFFFFF	12.83	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00378C

Deuteranopia (green-blind)

#002D87

Tritanopia (blue-blind)

#003F53

Achromatopsia (no color)

#323232

Design tokens & code

CSS

--color: #1f2189;
/* rgb */ color: rgb(31, 33, 137);
/* oklch */ color: oklch(33.2% 0.166 272.0);

Tailwind

colors: {
  custom: {
    50: '#6e5dad',
    500: '#1f2189',
    950: '#000000',
  },
}

SCSS

$custom: #1f2189;
$custom-light: #6e5dad;
$custom-dark: #000000;

JSON

{
  "hex": "#1f2189",
  "rgb": {
    "r": 31,
    "g": 33,
    "b": 137
  },
  "hsl": {
    "h": 238.868,
    "s": 63.095,
    "l": 32.941
  },
  "oklch": {
    "l": 0.33235,
    "c": 0.16621,
    "h": 272
  },
  "luminance": 0.03185
}

Semantic roles & 50–950 ramp

primary

#1F2189

secondary

#B9B74B

accent

#E342E6

background

#F7F5FA

surface

#EDE9F4

border

#C8C5CE

text

#080410

muted

#7B797F

Preview Lab

Preview with #1F2189

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

Preview Lab → · Contrast checker → · Palette generator →