#1F44A8#1F44A8

#1F44A8 is a dark, vivid blue. Relative luminance 0.073; OKLCH L 42.6% C 0.166 H 264.7°. Best body text is #FFFFFF at 8.57:1 contrast (WCAG AA passes).

Color values

HEX	#1F44A8
RGB	rgb(31, 68, 168)
HSL	hsl(224, 69%, 39%)
HSV	hsv(224, 82%, 66%)
CMYK	cmyk(81.5%, 59.5%, 0%, 34.1%)
CIE-LAB	lab(32.37, 25.14, -57.32)
CIE-LCH	lch(32.37, 62.59, 293.68°)
OKLab	oklab(42.63% -0.0154 -0.1657)
OKLCH	oklch(42.63% 0.166 264.7)
XYZ	xyz(9.6976, 7.2515, 37.9268)
Luminance	0.0725 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1F44A8 #A8831F

analogous

#1F89A8 #1F44A8 #3F1FA8

triadic

#1F44A8 #A81F44 #44A81F

tetradic

#1F44A8 #A81F89 #A8831F #1FA83F

square

#1F44A8 #A81F89 #A8831F #1FA83F

split-complementary

#1F44A8 #A83F1F #89A81F

monochromatic

#0C1A41 #152F74 #1F44A8 #2C5BD8 #6083E2

Accessibility & contrast

On white

8.57

#1F44A8 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.45

#1F44A8 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1F44A8

8.57:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1F44A8	#FFFFFF	#000000	##FFFFFF
##1F44A8	1.00	8.57	2.45	8.57
#FFFFFF	8.57	1.00	21.00	1.00
#000000	2.45	21.00	1.00	21.00
##FFFFFF	8.57	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0053AB

Deuteranopia (green-blind)

#0046A6

Tritanopia (blue-blind)

#005D6F

Achromatopsia (no color)

#4C4C4C

Design tokens & code

CSS

--color: #1f44a8;
/* rgb */ color: rgb(31, 68, 168);
/* oklch */ color: oklch(42.6% 0.166 264.7);

Tailwind

colors: {
  custom: {
    50: '#7377c3',
    500: '#1f44a8',
    950: '#000000',
  },
}

SCSS

$custom: #1f44a8;
$custom-light: #7377c3;
$custom-dark: #000000;

JSON

{
  "hex": "#1f44a8",
  "rgb": {
    "r": 31,
    "g": 68,
    "b": 168
  },
  "hsl": {
    "h": 223.796,
    "s": 68.844,
    "l": 39.02
  },
  "oklch": {
    "l": 0.42627,
    "c": 0.16642,
    "h": 264.7
  },
  "luminance": 0.07253
}

Semantic roles & 50–950 ramp

primary

#1F44A8

secondary

#C6AA5D

accent

#BC3CEC

background

#F7F7FC

surface

#EEEDF8

border

#C9C8D1

text

#090813

muted

#7B7B82

Preview Lab

Preview with #1F44A8

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

Preview Lab → · Contrast checker → · Palette generator →