#1F2489#1F2489

#1F2489 is a dark, vivid blue. Relative luminance 0.034; OKLCH L 33.7% C 0.163 H 271.5°. Best body text is #FFFFFF at 12.56:1 contrast (WCAG AA passes).

Color values

HEX	#1F2489
RGB	rgb(31, 36, 137)
HSL	hsl(237, 63%, 33%)
HSV	hsv(237, 77%, 54%)
CMYK	cmyk(77.4%, 73.7%, 0%, 46.3%)
CIE-LAB	lab(21.43, 34.50, -56.30)
CIE-LCH	lch(21.43, 66.03, 301.50°)
OKLab	oklab(33.7% 0.0043 -0.163)
OKLCH	oklch(33.7% 0.163 271.5)
XYZ	xyz(5.7098, 3.3586, 24.0094)
Luminance	0.0336 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1F2489 #89841F

analogous

#1F5989 #1F2489 #4F1F89

triadic

#1F2489 #891F24 #24891F

tetradic

#1F2489 #891F59 #89841F #1F894F

square

#1F2489 #891F59 #89841F #1F894F

split-complementary

#1F2489 #894F1F #59891F

monochromatic

#080A25 #141757 #1F2489 #2A31BB #4C52D6

Accessibility & contrast

On white

12.56

#1F2489 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.67

#1F2489 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1F2489

12.56:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1F2489	#FFFFFF	#000000	##FFFFFF
##1F2489	1.00	12.56	1.67	12.56
#FFFFFF	12.56	1.00	21.00	1.00
#000000	1.67	21.00	1.00	21.00
##FFFFFF	12.56	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00398C

Deuteranopia (green-blind)

#002E87

Tritanopia (blue-blind)

#004154

Achromatopsia (no color)

#333333

Design tokens & code

CSS

--color: #1f2489;
/* rgb */ color: rgb(31, 36, 137);
/* oklch */ color: oklch(33.7% 0.163 271.5);

Tailwind

colors: {
  custom: {
    50: '#6d5fad',
    500: '#1f2489',
    950: '#000000',
  },
}

SCSS

$custom: #1f2489;
$custom-light: #6d5fad;
$custom-dark: #000000;

JSON

{
  "hex": "#1f2489",
  "rgb": {
    "r": 31,
    "g": 36,
    "b": 137
  },
  "hsl": {
    "h": 237.17,
    "s": 63.095,
    "l": 32.941
  },
  "oklch": {
    "l": 0.33704,
    "c": 0.16302,
    "h": 271.5
  },
  "luminance": 0.03359
}

Semantic roles & 50–950 ramp

primary

#1F2489

secondary

#B9B44B

accent

#DE42E6

background

#F7F5FA

surface

#EDE9F4

border

#C8C5CE

text

#080510

muted

#7B797F

Preview Lab

Preview with #1F2489

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

Preview Lab → · Contrast checker → · Palette generator →