#1F3893#1F3893

#1F3893 is a dark, vivid blue. Relative luminance 0.052; OKLCH L 38.3% C 0.153 H 266.9°. Best body text is #FFFFFF at 10.27:1 contrast (WCAG AA passes).

Color values

HEX	#1F3893
RGB	rgb(31, 56, 147)
HSL	hsl(227, 65%, 35%)
HSV	hsv(227, 79%, 58%)
CMYK	cmyk(78.9%, 61.9%, 0%, 42.4%)
CIE-LAB	lab(27.37, 25.06, -52.75)
CIE-LCH	lch(27.37, 58.40, 295.41°)
OKLab	oklab(38.34% -0.0082 -0.1525)
OKLCH	oklch(38.34% 0.153 266.9)
XYZ	xyz(7.2439, 5.2254, 28.2249)
Luminance	0.0523 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1F3893 #937A1F

analogous

#1F7293 #1F3893 #401F93

triadic

#1F3893 #931F38 #38931F

tetradic

#1F3893 #931F72 #937A1F #1F9340

square

#1F3893 #931F72 #937A1F #1F9340

split-complementary

#1F3893 #93401F #72931F

monochromatic

#0A112E #142560 #1F3893 #2A4BC6 #526FDA

Accessibility & contrast

On white

10.27

#1F3893 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.05

#1F3893 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1F3893

10.27:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1F3893	#FFFFFF	#000000	##FFFFFF
##1F3893	1.00	10.27	2.05	10.27
#FFFFFF	10.27	1.00	21.00	1.00
#000000	2.05	21.00	1.00	21.00
##FFFFFF	10.27	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004696

Deuteranopia (green-blind)

#003B91

Tritanopia (blue-blind)

#004F60

Achromatopsia (no color)

#414141

Design tokens & code

CSS

--color: #1f3893;
/* rgb */ color: rgb(31, 56, 147);
/* oklch */ color: oklch(38.3% 0.153 266.9);

Tailwind

colors: {
  custom: {
    50: '#6e6eb4',
    500: '#1f3893',
    950: '#000000',
  },
}

SCSS

$custom: #1f3893;
$custom-light: #6e6eb4;
$custom-dark: #000000;

JSON

{
  "hex": "#1f3893",
  "rgb": {
    "r": 31,
    "g": 56,
    "b": 147
  },
  "hsl": {
    "h": 227.069,
    "s": 65.169,
    "l": 34.902
  },
  "oklch": {
    "l": 0.38339,
    "c": 0.15269,
    "h": 266.9
  },
  "luminance": 0.05226
}

Semantic roles & 50–950 ramp

primary

#1F3893

secondary

#BEA650

accent

#C440E8

background

#F7F6FB

surface

#EDEBF6

border

#C8C6D0

text

#080711

muted

#7B7A80

Preview Lab

Preview with #1F3893

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

Preview Lab → · Contrast checker → · Palette generator →