#1F2B82#1F2B82

#1F2B82 is a dark, vivid blue. Relative luminance 0.036; OKLCH L 34.2% C 0.145 H 270.4°. Best body text is #FFFFFF at 12.17:1 contrast (WCAG AA passes).

Color values

HEX	#1F2B82
RGB	rgb(31, 43, 130)
HSL	hsl(233, 61%, 32%)
HSV	hsv(233, 76%, 51%)
CMYK	cmyk(76.2%, 66.9%, 0%, 49%)
CIE-LAB	lab(22.41, 27.33, -50.29)
CIE-LCH	lch(22.41, 57.24, 298.52°)
OKLab	oklab(34.2% 0.001 -0.1454)
OKLCH	oklch(34.2% 0.145 270.4)
XYZ	xyz(5.4568, 3.6302, 21.5279)
Luminance	0.0363 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1F2B82 #82761F

analogous

#1F5D82 #1F2B82 #451F82

triadic

#1F2B82 #821F2B #2B821F

tetradic

#1F2B82 #821F5D #82761F #1F8245

square

#1F2B82 #821F5D #82761F #1F8245

split-complementary

#1F2B82 #82451F #5D821F

monochromatic

#070A1F #131B51 #1F2B82 #2B3BB3 #4859D3

Accessibility & contrast

On white

12.17

#1F2B82 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.73

#1F2B82 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1F2B82

12.17:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1F2B82	#FFFFFF	#000000	##FFFFFF
##1F2B82	1.00	12.17	1.73	12.17
#FFFFFF	12.17	1.00	21.00	1.00
#000000	1.73	21.00	1.00	21.00
##FFFFFF	12.17	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003A85

Deuteranopia (green-blind)

#003180

Tritanopia (blue-blind)

#004252

Achromatopsia (no color)

#363636

Design tokens & code

CSS

--color: #1f2b82;
/* rgb */ color: rgb(31, 43, 130);
/* oklch */ color: oklch(34.2% 0.145 270.4);

Tailwind

colors: {
  custom: {
    50: '#6b64a7',
    500: '#1f2b82',
    950: '#000000',
  },
}

SCSS

$custom: #1f2b82;
$custom-light: #6b64a7;
$custom-dark: #000000;

JSON

{
  "hex": "#1f2b82",
  "rgb": {
    "r": 31,
    "g": 43,
    "b": 130
  },
  "hsl": {
    "h": 232.727,
    "s": 61.491,
    "l": 31.569
  },
  "oklch": {
    "l": 0.34203,
    "c": 0.1454,
    "h": 270.4
  },
  "luminance": 0.03631
}

Semantic roles & 50–950 ramp

primary

#1F2B82

secondary

#B5A848

accent

#D143E5

background

#F6F6FA

surface

#ECEBF4

border

#C7C6CE

text

#080510

muted

#7A7A7F

Preview Lab

Preview with #1F2B82

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

Preview Lab → · Contrast checker → · Palette generator →