#1F49B2#1F49B2

#1F49B2 is a dark, vivid blue. Relative luminance 0.083; OKLCH L 44.5% C 0.174 H 264.0°. Best body text is #FFFFFF at 7.91:1 contrast (WCAG AA passes).

Color values

HEX	#1F49B2
RGB	rgb(31, 73, 178)
HSL	hsl(223, 70%, 41%)
HSV	hsv(223, 83%, 70%)
CMYK	cmyk(82.6%, 59%, 0%, 30.2%)
CIE-LAB	lab(34.54, 25.68, -59.75)
CIE-LCH	lch(34.54, 65.03, 293.26°)
OKLab	oklab(44.51% -0.0181 -0.1727)
OKLCH	oklch(44.51% 0.174 264)
XYZ	xyz(10.9806, 8.2694, 43.1283)
Luminance	0.0827 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1F49B2 #B2881F

analogous

#1F92B2 #1F49B2 #3E1FB2

triadic

#1F49B2 #B21F49 #49B21F

tetradic

#1F49B2 #B21F92 #B2881F #1FB23E

square

#1F49B2 #B21F92 #B2881F #1FB23E

split-complementary

#1F49B2 #B23E1F #92B21F

monochromatic

#0D1E4A #16347E #1F49B2 #3363DB #678BE5

Accessibility & contrast

On white

7.91

#1F49B2 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.65

#1F49B2 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1F49B2

7.91:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1F49B2	#FFFFFF	#000000	##FFFFFF
##1F49B2	1.00	7.91	2.65	7.91
#FFFFFF	7.91	1.00	21.00	1.00
#000000	2.65	21.00	1.00	21.00
##FFFFFF	7.91	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0058B6

Deuteranopia (green-blind)

#004BB0

Tritanopia (blue-blind)

#006476

Achromatopsia (no color)

#515151

Design tokens & code

CSS

--color: #1f49b2;
/* rgb */ color: rgb(31, 73, 178);
/* oklch */ color: oklch(44.5% 0.174 264.0);

Tailwind

colors: {
  custom: {
    50: '#757bca',
    500: '#1f49b2',
    950: '#000000',
  },
}

SCSS

$custom: #1f49b2;
$custom-light: #757bca;
$custom-dark: #000000;

JSON

{
  "hex": "#1f49b2",
  "rgb": {
    "r": 31,
    "g": 73,
    "b": 178
  },
  "hsl": {
    "h": 222.857,
    "s": 70.335,
    "l": 40.98
  },
  "oklch": {
    "l": 0.44505,
    "c": 0.17369,
    "h": 264
  },
  "luminance": 0.08271
}

Semantic roles & 50–950 ramp

primary

#1F49B2

secondary

#CAAC63

accent

#BA3BED

background

#F7F7FC

surface

#EEEDF8

border

#C9C8D1

text

#0A0913

muted

#7C7B82

Preview Lab

Preview with #1F49B2

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

Preview Lab → · Contrast checker → · Palette generator →