#1F419A#1F419A

#1F419A is a dark, vivid blue. Relative luminance 0.064; OKLCH L 40.8% C 0.151 H 264.6°. Best body text is #FFFFFF at 9.21:1 contrast (WCAG AA passes).

Color values

HEX	#1F419A
RGB	rgb(31, 65, 154)
HSL	hsl(223, 66%, 36%)
HSV	hsv(223, 80%, 60%)
CMYK	cmyk(79.9%, 57.8%, 0%, 39.6%)
CIE-LAB	lab(30.41, 21.66, -52.07)
CIE-LCH	lch(30.41, 56.40, 292.59°)
OKLab	oklab(40.8% -0.0141 -0.1503)
OKLCH	oklch(40.8% 0.151 264.6)
XYZ	xyz(8.2860, 6.4040, 31.3650)
Luminance	0.0640 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1F419A #9A781F

analogous

#1F7F9A #1F419A #3B1F9A

triadic

#1F419A #9A1F41 #419A1F

tetradic

#1F419A #9A1F7F #9A781F #1F9A3B

square

#1F419A #9A1F7F #9A781F #1F9A3B

split-complementary

#1F419A #9A3B1F #7F9A1F

monochromatic

#0A1634 #152B67 #1F419A #2957CD #567CDD

Accessibility & contrast

On white

9.21

#1F419A on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.28

#1F419A on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1F419A

9.21:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1F419A	#FFFFFF	#000000	##FFFFFF
##1F419A	1.00	9.21	2.28	9.21
#FFFFFF	9.21	1.00	21.00	1.00
#000000	2.28	21.00	1.00	21.00
##FFFFFF	9.21	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004D9D

Deuteranopia (green-blind)

#004298

Tritanopia (blue-blind)

#005767

Achromatopsia (no color)

#484848

Design tokens & code

CSS

--color: #1f419a;
/* rgb */ color: rgb(31, 65, 154);
/* oklch */ color: oklch(40.8% 0.151 264.6);

Tailwind

colors: {
  custom: {
    50: '#6f75b8',
    500: '#1f419a',
    950: '#000000',
  },
}

SCSS

$custom: #1f419a;
$custom-light: #6f75b8;
$custom-dark: #000000;

JSON

{
  "hex": "#1f419a",
  "rgb": {
    "r": 31,
    "g": 65,
    "b": 154
  },
  "hsl": {
    "h": 223.415,
    "s": 66.486,
    "l": 36.275
  },
  "oklch": {
    "l": 0.40797,
    "c": 0.15099,
    "h": 264.6
  },
  "luminance": 0.06405
}

Semantic roles & 50–950 ramp

primary

#1F419A

secondary

#C1A354

accent

#BA3EE9

background

#F7F7FB

surface

#EDEDF6

border

#C8C8D0

text

#090811

muted

#7B7B80

Preview Lab

Preview with #1F419A

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

Preview Lab → · Contrast checker → · Palette generator →