#1F2287#1F2287

#1F2287 is a dark, vivid blue. Relative luminance 0.032; OKLCH L 33.2% C 0.163 H 272.0°. Best body text is #FFFFFF at 12.83:1 contrast (WCAG AA passes).

Color values

HEX	#1F2287
RGB	rgb(31, 34, 135)
HSL	hsl(238, 63%, 33%)
HSV	hsv(238, 77%, 53%)
CMYK	cmyk(77%, 74.8%, 0%, 47.1%)
CIE-LAB	lab(20.77, 35.02, -56.14)
CIE-LCH	lch(20.77, 66.17, 301.96°)
OKLab	oklab(33.17% 0.0056 -0.1625)
OKLCH	oklch(33.17% 0.163 272)
XYZ	xyz(5.5088, 3.1840, 23.2412)
Luminance	0.0319 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1F2287 #87841F

analogous

#1F5687 #1F2287 #501F87

triadic

#1F2287 #871F22 #22871F

tetradic

#1F2287 #871F56 #87841F #1F8750

square

#1F2287 #871F56 #87841F #1F8750

split-complementary

#1F2287 #87501F #56871F

monochromatic

#080923 #141555 #1F2287 #2A2FB9 #4B4FD6

Accessibility & contrast

On white

12.83

#1F2287 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.64

#1F2287 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1F2287

12.83:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1F2287	#FFFFFF	#000000	##FFFFFF
##1F2287	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)

#00378A

Deuteranopia (green-blind)

#002D85

Tritanopia (blue-blind)

#003F52

Achromatopsia (no color)

#323232

Design tokens & code

CSS

--color: #1f2287;
/* rgb */ color: rgb(31, 34, 135);
/* oklch */ color: oklch(33.2% 0.163 272.0);

Tailwind

colors: {
  custom: {
    50: '#6d5eab',
    500: '#1f2287',
    950: '#000000',
  },
}

SCSS

$custom: #1f2287;
$custom-light: #6d5eab;
$custom-dark: #000000;

JSON

{
  "hex": "#1f2287",
  "rgb": {
    "r": 31,
    "g": 34,
    "b": 135
  },
  "hsl": {
    "h": 238.269,
    "s": 62.651,
    "l": 32.549
  },
  "oklch": {
    "l": 0.33168,
    "c": 0.16257,
    "h": 272
  },
  "luminance": 0.03185
}

Semantic roles & 50–950 ramp

primary

#1F2287

secondary

#B8B54A

accent

#E142E6

background

#F7F5FA

surface

#EDE9F4

border

#C8C5CE

text

#080410

muted

#7B797F

Preview Lab

Preview with #1F2287

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

Preview Lab → · Contrast checker → · Palette generator →