#1F2A89#1F2A89

#1F2A89 is a dark, vivid blue. Relative luminance 0.038; OKLCH L 34.7% C 0.156 H 270.4°. Best body text is #FFFFFF at 12.00:1 contrast (WCAG AA passes).

Color values

HEX	#1F2A89
RGB	rgb(31, 42, 137)
HSL	hsl(234, 63%, 33%)
HSV	hsv(234, 77%, 54%)
CMYK	cmyk(77.4%, 69.3%, 0%, 46.3%)
CIE-LAB	lab(22.84, 30.65, -53.98)
CIE-LCH	lch(22.84, 62.08, 299.59°)
OKLab	oklab(34.72% 0.001 -0.1562)
OKLCH	oklch(34.72% 0.156 270.4)
XYZ	xyz(5.9069, 3.7527, 24.0751)
Luminance	0.0375 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1F2A89 #897E1F

analogous

#1F5F89 #1F2A89 #491F89

triadic

#1F2A89 #891F2A #2A891F

tetradic

#1F2A89 #891F5F #897E1F #1F8949

square

#1F2A89 #891F5F #897E1F #1F8949

split-complementary

#1F2A89 #89491F #5F891F

monochromatic

#080B25 #141B57 #1F2A89 #2A39BB #4C5AD6

Accessibility & contrast

On white

12.00

#1F2A89 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.75

#1F2A89 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1F2A89

12.00:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1F2A89	#FFFFFF	#000000	##FFFFFF
##1F2A89	1.00	12.00	1.75	12.00
#FFFFFF	12.00	1.00	21.00	1.00
#000000	1.75	21.00	1.00	21.00
##FFFFFF	12.00	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003C8C

Deuteranopia (green-blind)

#003187

Tritanopia (blue-blind)

#004456

Achromatopsia (no color)

#363636

Design tokens & code

CSS

--color: #1f2a89;
/* rgb */ color: rgb(31, 42, 137);
/* oklch */ color: oklch(34.7% 0.156 270.4);

Tailwind

colors: {
  custom: {
    50: '#6d64ac',
    500: '#1f2a89',
    950: '#000000',
  },
}

SCSS

$custom: #1f2a89;
$custom-light: #6d64ac;
$custom-dark: #000000;

JSON

{
  "hex": "#1f2a89",
  "rgb": {
    "r": 31,
    "g": 42,
    "b": 137
  },
  "hsl": {
    "h": 233.774,
    "s": 63.095,
    "l": 32.941
  },
  "oklch": {
    "l": 0.34722,
    "c": 0.15619,
    "h": 270.4
  },
  "luminance": 0.03753
}

Semantic roles & 50–950 ramp

primary

#1F2A89

secondary

#B9AE4B

accent

#D542E6

background

#F7F5FA

surface

#EDEAF4

border

#C8C6CE

text

#080510

muted

#7B797F

Preview Lab

Preview with #1F2A89

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

Preview Lab → · Contrast checker → · Palette generator →