#1F49B4#1F49B4

#1F49B4 is a dark, vivid blue. Relative luminance 0.084; OKLCH L 44.7% C 0.176 H 264.1°. Best body text is #FFFFFF at 7.86:1 contrast (WCAG AA passes).

Color values

HEX	#1F49B4
RGB	rgb(31, 73, 180)
HSL	hsl(223, 71%, 41%)
HSV	hsv(223, 83%, 71%)
CMYK	cmyk(82.8%, 59.4%, 0%, 29.4%)
CIE-LAB	lab(34.70, 26.46, -60.66)
CIE-LCH	lch(34.70, 66.18, 293.57°)
OKLab	oklab(44.68% -0.018 -0.1754)
OKLCH	oklch(44.68% 0.176 264.1)
XYZ	xyz(11.1829, 8.3503, 44.1935)
Luminance	0.0835 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1F49B4 #B48A1F

analogous

#1F94B4 #1F49B4 #401FB4

triadic

#1F49B4 #B41F49 #49B41F

tetradic

#1F49B4 #B41F94 #B48A1F #1FB440

square

#1F49B4 #B41F94 #B48A1F #1FB440

split-complementary

#1F49B4 #B4401F #94B41F

monochromatic

#0D1F4C #163480 #1F49B4 #3463DC #688CE5

Accessibility & contrast

On white

7.86

#1F49B4 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.67

#1F49B4 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1F49B4

7.86:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1F49B4	#FFFFFF	#000000	##FFFFFF
##1F49B4	1.00	7.86	2.67	7.86
#FFFFFF	7.86	1.00	21.00	1.00
#000000	2.67	21.00	1.00	21.00
##FFFFFF	7.86	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0059B8

Deuteranopia (green-blind)

#004BB2

Tritanopia (blue-blind)

#006477

Achromatopsia (no color)

#525252

Design tokens & code

CSS

--color: #1f49b4;
/* rgb */ color: rgb(31, 73, 180);
/* oklch */ color: oklch(44.7% 0.176 264.1);

Tailwind

colors: {
  custom: {
    50: '#757bcb',
    500: '#1f49b4',
    950: '#000000',
  },
}

SCSS

$custom: #1f49b4;
$custom-light: #757bcb;
$custom-dark: #000000;

JSON

{
  "hex": "#1f49b4",
  "rgb": {
    "r": 31,
    "g": 73,
    "b": 180
  },
  "hsl": {
    "h": 223.087,
    "s": 70.616,
    "l": 41.373
  },
  "oklch": {
    "l": 0.44679,
    "c": 0.17636,
    "h": 264.1
  },
  "luminance": 0.08352
}

Semantic roles & 50–950 ramp

primary

#1F49B4

secondary

#CBAE64

accent

#BB3AED

background

#F7F7FC

surface

#EEEDF9

border

#C9C8D2

text

#0A0913

muted

#7C7B82

Preview Lab

Preview with #1F49B4

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

Preview Lab → · Contrast checker → · Palette generator →