#1F2689#1F2689

#1F2689 is a dark, vivid blue. Relative luminance 0.035; OKLCH L 34.0% C 0.161 H 271.2°. Best body text is #FFFFFF at 12.38:1 contrast (WCAG AA passes).

Color values

HEX	#1F2689
RGB	rgb(31, 38, 137)
HSL	hsl(236, 63%, 33%)
HSV	hsv(236, 77%, 54%)
CMYK	cmyk(77.4%, 72.3%, 0%, 46.3%)
CIE-LAB	lab(21.88, 33.24, -55.55)
CIE-LCH	lch(21.88, 64.73, 300.90°)
OKLab	oklab(34.03% 0.0033 -0.1608)
OKLCH	oklch(34.03% 0.161 271.2)
XYZ	xyz(5.7720, 3.4831, 24.0302)
Luminance	0.0348 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1F2689 #89821F

analogous

#1F5B89 #1F2689 #4D1F89

triadic

#1F2689 #891F26 #26891F

tetradic

#1F2689 #891F5B #89821F #1F894D

square

#1F2689 #891F5B #89821F #1F894D

split-complementary

#1F2689 #894D1F #5B891F

monochromatic

#080A25 #141857 #1F2689 #2A34BB #4C55D6

Accessibility & contrast

On white

12.38

#1F2689 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.70

#1F2689 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1F2689

12.38:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1F2689	#FFFFFF	#000000	##FFFFFF
##1F2689	1.00	12.38	1.70	12.38
#FFFFFF	12.38	1.00	21.00	1.00
#000000	1.70	21.00	1.00	21.00
##FFFFFF	12.38	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003A8C

Deuteranopia (green-blind)

#002F87

Tritanopia (blue-blind)

#004254

Achromatopsia (no color)

#343434

Design tokens & code

CSS

--color: #1f2689;
/* rgb */ color: rgb(31, 38, 137);
/* oklch */ color: oklch(34.0% 0.161 271.2);

Tailwind

colors: {
  custom: {
    50: '#6d61ac',
    500: '#1f2689',
    950: '#000000',
  },
}

SCSS

$custom: #1f2689;
$custom-light: #6d61ac;
$custom-dark: #000000;

JSON

{
  "hex": "#1f2689",
  "rgb": {
    "r": 31,
    "g": 38,
    "b": 137
  },
  "hsl": {
    "h": 236.038,
    "s": 63.095,
    "l": 32.941
  },
  "oklch": {
    "l": 0.34032,
    "c": 0.1608,
    "h": 271.2
  },
  "luminance": 0.03484
}

Semantic roles & 50–950 ramp

primary

#1F2689

secondary

#B9B24B

accent

#DB42E6

background

#F7F5FA

surface

#EDE9F4

border

#C8C5CE

text

#080510

muted

#7B797F

Preview Lab

Preview with #1F2689

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

Preview Lab → · Contrast checker → · Palette generator →