#1F49A1#1F49A1

#1F49A1 is a dark, vivid blue. Relative luminance 0.076; OKLCH L 43.1% C 0.151 H 262.6°. Best body text is #FFFFFF at 8.31:1 contrast (WCAG AA passes).

Color values

HEX	#1F49A1
RGB	rgb(31, 73, 161)
HSL	hsl(221, 68%, 38%)
HSV	hsv(221, 81%, 63%)
CMYK	cmyk(80.7%, 54.7%, 0%, 36.9%)
CIE-LAB	lab(33.20, 18.99, -51.78)
CIE-LCH	lch(33.20, 55.15, 290.14°)
OKLab	oklab(43.07% -0.0193 -0.1493)
OKLCH	oklch(43.07% 0.151 262.6)
XYZ	xyz(9.3783, 7.6285, 34.6895)
Luminance	0.0763 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1F49A1 #A1771F

analogous

#1F8AA1 #1F49A1 #361FA1

triadic

#1F49A1 #A11F49 #49A11F

tetradic

#1F49A1 #A11F8A #A1771F #1FA136

square

#1F49A1 #A11F8A #A1771F #1FA136

split-complementary

#1F49A1 #A1361F #8AA11F

monochromatic

#0B1A3A #15326E #1F49A1 #2960D4 #5B86DF

Accessibility & contrast

On white

8.31

#1F49A1 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.53

#1F49A1 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1F49A1

8.31:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1F49A1	#FFFFFF	#000000	##FFFFFF
##1F49A1	1.00	8.31	2.53	8.31
#FFFFFF	8.31	1.00	21.00	1.00
#000000	2.53	21.00	1.00	21.00
##FFFFFF	8.31	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0054A4

Deuteranopia (green-blind)

#00489F

Tritanopia (blue-blind)

#005F6E

Achromatopsia (no color)

#4E4E4E

Design tokens & code

CSS

--color: #1f49a1;
/* rgb */ color: rgb(31, 73, 161);
/* oklch */ color: oklch(43.1% 0.151 262.6);

Tailwind

colors: {
  custom: {
    50: '#717bbd',
    500: '#1f49a1',
    950: '#000000',
  },
}

SCSS

$custom: #1f49a1;
$custom-light: #717bbd;
$custom-dark: #000000;

JSON

{
  "hex": "#1f49a1",
  "rgb": {
    "r": 31,
    "g": 73,
    "b": 161
  },
  "hsl": {
    "h": 220.615,
    "s": 67.708,
    "l": 37.647
  },
  "oklch": {
    "l": 0.43074,
    "c": 0.15056,
    "h": 262.6
  },
  "luminance": 0.0763
}

Semantic roles & 50–950 ramp

primary

#1F49A1

secondary

#C4A158

accent

#B33DEB

background

#F7F7FB

surface

#EDEDF7

border

#C8C8D0

text

#090912

muted

#7B7B81

Preview Lab

Preview with #1F49A1

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

Preview Lab → · Contrast checker → · Palette generator →