#1F50A9#1F50A9

#1F50A9 is a mid, vivid blue. Relative luminance 0.089; OKLCH L 45.2% C 0.153 H 261.1°. Best body text is #FFFFFF at 7.56:1 contrast (WCAG AA passes).

Color values

HEX	#1F50A9
RGB	rgb(31, 80, 169)
HSL	hsl(219, 69%, 39%)
HSV	hsv(219, 82%, 66%)
CMYK	cmyk(81.7%, 52.7%, 0%, 33.7%)
CIE-LAB	lab(35.78, 17.45, -52.39)
CIE-LCH	lch(35.78, 55.22, 288.42°)
OKLab	oklab(45.22% -0.0235 -0.151)
OKLCH	oklch(45.22% 0.153 261.1)
XYZ	xyz(10.5926, 8.8919, 38.6865)
Luminance	0.0889 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1F50A9 #A9781F

analogous

#1F95A9 #1F50A9 #331FA9

triadic

#1F50A9 #A91F50 #50A91F

tetradic

#1F50A9 #A91F95 #A9781F #1FA933

square

#1F50A9 #A91F95 #A9781F #1FA933

split-complementary

#1F50A9 #A9331F #95A91F

monochromatic

#0C1F42 #163875 #1F50A9 #2D6AD8 #608EE2

Accessibility & contrast

On white

7.56

#1F50A9 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.78

#1F50A9 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1F50A9

7.56:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1F50A9	#FFFFFF	#000000	##FFFFFF
##1F50A9	1.00	7.56	2.78	7.56
#FFFFFF	7.56	1.00	21.00	1.00
#000000	2.78	21.00	1.00	21.00
##FFFFFF	7.56	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#105BAC

Deuteranopia (green-blind)

#004EA7

Tritanopia (blue-blind)

#006674

Achromatopsia (no color)

#545454

Design tokens & code

CSS

--color: #1f50a9;
/* rgb */ color: rgb(31, 80, 169);
/* oklch */ color: oklch(45.2% 0.153 261.1);

Tailwind

colors: {
  custom: {
    50: '#7280c3',
    500: '#1f50a9',
    950: '#000000',
  },
}

SCSS

$custom: #1f50a9;
$custom-light: #7280c3;
$custom-dark: #000000;

JSON

{
  "hex": "#1f50a9",
  "rgb": {
    "r": 31,
    "g": 80,
    "b": 169
  },
  "hsl": {
    "h": 218.696,
    "s": 69,
    "l": 39.216
  },
  "oklch": {
    "l": 0.45222,
    "c": 0.1528,
    "h": 261.1
  },
  "luminance": 0.08893
}

Semantic roles & 50–950 ramp

primary

#1F50A9

secondary

#C7A15D

accent

#AD3CEC

background

#F7F7FC

surface

#EEEEF8

border

#C9C9D1

text

#090A13

muted

#7B7C82

Preview Lab

Preview with #1F50A9

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

Preview Lab → · Contrast checker → · Palette generator →