#1F2884#1F2884

#1F2884 is a dark, vivid blue. Relative luminance 0.035; OKLCH L 33.9% C 0.152 H 271.0°. Best body text is #FFFFFF at 12.39:1 contrast (WCAG AA passes).

Color values

HEX	#1F2884
RGB	rgb(31, 40, 132)
HSL	hsl(235, 62%, 32%)
HSV	hsv(235, 77%, 52%)
CMYK	cmyk(76.5%, 69.7%, 0%, 48.2%)
CIE-LAB	lab(21.85, 30.09, -52.46)
CIE-LCH	lch(21.85, 60.48, 299.84°)
OKLab	oklab(33.86% 0.0027 -0.1518)
OKLCH	oklch(33.86% 0.152 271)
XYZ	xyz(5.4873, 3.4743, 22.2067)
Luminance	0.0348 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1F2884 #847B1F

analogous

#1F5B84 #1F2884 #481F84

triadic

#1F2884 #841F28 #28841F

tetradic

#1F2884 #841F5B #847B1F #1F8448

square

#1F2884 #841F5B #847B1F #1F8448

split-complementary

#1F2884 #84481F #5B841F

monochromatic

#080A21 #131952 #1F2884 #2B37B6 #4956D4

Accessibility & contrast

On white

12.39

#1F2884 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.70

#1F2884 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1F2884

12.39:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1F2884	#FFFFFF	#000000	##FFFFFF
##1F2884	1.00	12.39	1.70	12.39
#FFFFFF	12.39	1.00	21.00	1.00
#000000	1.70	21.00	1.00	21.00
##FFFFFF	12.39	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003987

Deuteranopia (green-blind)

#003082

Tritanopia (blue-blind)

#004152

Achromatopsia (no color)

#343434

Design tokens & code

CSS

--color: #1f2884;
/* rgb */ color: rgb(31, 40, 132);
/* oklch */ color: oklch(33.9% 0.152 271.0);

Tailwind

colors: {
  custom: {
    50: '#6c62a9',
    500: '#1f2884',
    950: '#000000',
  },
}

SCSS

$custom: #1f2884;
$custom-light: #6c62a9;
$custom-dark: #000000;

JSON

{
  "hex": "#1f2884",
  "rgb": {
    "r": 31,
    "g": 40,
    "b": 132
  },
  "hsl": {
    "h": 234.653,
    "s": 61.963,
    "l": 31.961
  },
  "oklch": {
    "l": 0.33855,
    "c": 0.15179,
    "h": 271
  },
  "luminance": 0.03475
}

Semantic roles & 50–950 ramp

primary

#1F2884

secondary

#B7AD48

accent

#D743E5

background

#F7F5FA

surface

#EDEAF4

border

#C8C6CE

text

#080510

muted

#7B797F

Preview Lab

Preview with #1F2884

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

Preview Lab → · Contrast checker → · Palette generator →