#1F56A9#1F56A9

#1F56A9 is a mid, vivid blue. Relative luminance 0.098; OKLCH L 46.5% C 0.145 H 258.9°. Best body text is #FFFFFF at 7.09:1 contrast (WCAG AA passes).

Color values

HEX	#1F56A9
RGB	rgb(31, 86, 169)
HSL	hsl(216, 69%, 39%)
HSV	hsv(216, 82%, 66%)
CMYK	cmyk(81.7%, 49.1%, 0%, 33.7%)
CIE-LAB	lab(37.50, 13.44, -49.60)
CIE-LCH	lch(37.50, 51.39, 285.16°)
OKLab	oklab(46.54% -0.028 -0.1427)
OKLCH	oklch(46.54% 0.145 258.9)
XYZ	xyz(11.0517, 9.8101, 38.8395)
Luminance	0.0981 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1F56A9 #A9721F

analogous

#1F9BA9 #1F56A9 #2D1FA9

triadic

#1F56A9 #A91F56 #56A91F

tetradic

#1F56A9 #A91F9B #A9721F #1FA92D

square

#1F56A9 #A91F9B #A9721F #1FA92D

split-complementary

#1F56A9 #A92D1F #9BA91F

monochromatic

#0C2142 #163C75 #1F56A9 #2D71D8 #6094E2

Accessibility & contrast

On white

7.09

#1F56A9 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.96

#1F56A9 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1F56A9

7.09:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1F56A9	#FFFFFF	#000000	##FFFFFF
##1F56A9	1.00	7.09	2.96	7.09
#FFFFFF	7.09	1.00	21.00	1.00
#000000	2.96	21.00	1.00	21.00
##FFFFFF	7.09	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#255FAC

Deuteranopia (green-blind)

#0052A7

Tritanopia (blue-blind)

#006A77

Achromatopsia (no color)

#585858

Design tokens & code

CSS

--color: #1f56a9;
/* rgb */ color: rgb(31, 86, 169);
/* oklch */ color: oklch(46.5% 0.145 258.9);

Tailwind

colors: {
  custom: {
    50: '#7285c3',
    500: '#1f56a9',
    950: '#000000',
  },
}

SCSS

$custom: #1f56a9;
$custom-light: #7285c3;
$custom-dark: #000000;

JSON

{
  "hex": "#1f56a9",
  "rgb": {
    "r": 31,
    "g": 86,
    "b": 169
  },
  "hsl": {
    "h": 216.087,
    "s": 69,
    "l": 39.216
  },
  "oklch": {
    "l": 0.46541,
    "c": 0.14538,
    "h": 258.9
  },
  "luminance": 0.09811
}

Semantic roles & 50–950 ramp

primary

#1F56A9

secondary

#C79D5D

accent

#A63CEC

background

#F7F8FC

surface

#EDEFF8

border

#C8CAD1

text

#090A12

muted

#7B7C81

Preview Lab

Preview with #1F56A9

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

Preview Lab → · Contrast checker → · Palette generator →