#1F2B84#1F2B84

#1F2B84 is a dark, vivid blue. Relative luminance 0.037; OKLCH L 34.4% C 0.148 H 270.3°. Best body text is #FFFFFF at 12.09:1 contrast (WCAG AA passes).

Color values

HEX	#1F2B84
RGB	rgb(31, 43, 132)
HSL	hsl(233, 62%, 32%)
HSV	hsv(233, 77%, 52%)
CMYK	cmyk(76.5%, 67.4%, 0%, 48.2%)
CIE-LAB	lab(22.60, 28.10, -51.24)
CIE-LCH	lch(22.60, 58.43, 298.74°)
OKLab	oklab(34.4% 0.0008 -0.1482)
OKLCH	oklch(34.4% 0.148 270.3)
XYZ	xyz(5.5924, 3.6844, 22.2418)
Luminance	0.0369 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1F2B84 #84781F

analogous

#1F5E84 #1F2B84 #461F84

triadic

#1F2B84 #841F2B #2B841F

tetradic

#1F2B84 #841F5E #84781F #1F8446

square

#1F2B84 #841F5E #84781F #1F8446

split-complementary

#1F2B84 #84461F #5E841F

monochromatic

#080B21 #131B52 #1F2B84 #2B3BB6 #495AD4

Accessibility & contrast

On white

12.09

#1F2B84 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.74

#1F2B84 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1F2B84

12.09:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1F2B84	#FFFFFF	#000000	##FFFFFF
##1F2B84	1.00	12.09	1.74	12.09
#FFFFFF	12.09	1.00	21.00	1.00
#000000	1.74	21.00	1.00	21.00
##FFFFFF	12.09	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003B87

Deuteranopia (green-blind)

#003182

Tritanopia (blue-blind)

#004353

Achromatopsia (no color)

#363636

Design tokens & code

CSS

--color: #1f2b84;
/* rgb */ color: rgb(31, 43, 132);
/* oklch */ color: oklch(34.4% 0.148 270.3);

Tailwind

colors: {
  custom: {
    50: '#6b64a9',
    500: '#1f2b84',
    950: '#000000',
  },
}

SCSS

$custom: #1f2b84;
$custom-light: #6b64a9;
$custom-dark: #000000;

JSON

{
  "hex": "#1f2b84",
  "rgb": {
    "r": 31,
    "g": 43,
    "b": 132
  },
  "hsl": {
    "h": 232.871,
    "s": 61.963,
    "l": 31.961
  },
  "oklch": {
    "l": 0.344,
    "c": 0.14817,
    "h": 270.3
  },
  "luminance": 0.03685
}

Semantic roles & 50–950 ramp

primary

#1F2B84

secondary

#B7AA48

accent

#D243E5

background

#F6F6FA

surface

#ECEBF4

border

#C7C6CE

text

#080510

muted

#7A7A7F

Preview Lab

Preview with #1F2B84

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

Preview Lab → · Contrast checker → · Palette generator →