#1F418A#1F418A

#1F418A is a dark, vivid blue. Relative luminance 0.059; OKLCH L 39.5% C 0.128 H 263.0°. Best body text is #FFFFFF at 9.63:1 contrast (WCAG AA passes).

Color values

HEX	#1F418A
RGB	rgb(31, 65, 138)
HSL	hsl(221, 63%, 33%)
HSV	hsv(221, 78%, 54%)
CMYK	cmyk(77.5%, 52.9%, 0%, 45.9%)
CIE-LAB	lab(29.17, 15.28, -44.27)
CIE-LCH	lch(29.17, 46.83, 289.04°)
OKLab	oklab(39.47% -0.0155 -0.1274)
OKLCH	oklch(39.47% 0.128 263)
XYZ	xyz(7.0412, 5.9061, 24.8087)
Luminance	0.0591 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1F418A #8A681F

analogous

#1F768A #1F418A #331F8A

triadic

#1F418A #8A1F41 #418A1F

tetradic

#1F418A #8A1F76 #8A681F #1F8A33

square

#1F418A #8A1F76 #8A681F #1F8A33

split-complementary

#1F418A #8A331F #768A1F

monochromatic

#091226 #142958 #1F418A #2A59BC #4C78D7

Accessibility & contrast

On white

9.63

#1F418A on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.18

#1F418A on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1F418A

9.63:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1F418A	#FFFFFF	#000000	##FFFFFF
##1F418A	1.00	9.63	2.18	9.63
#FFFFFF	9.63	1.00	21.00	1.00
#000000	2.18	21.00	1.00	21.00
##FFFFFF	9.63	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#114A8D

Deuteranopia (green-blind)

#004089

Tritanopia (blue-blind)

#00535F

Achromatopsia (no color)

#454545

Design tokens & code

CSS

--color: #1f418a;
/* rgb */ color: rgb(31, 65, 138);
/* oklch */ color: oklch(39.5% 0.128 263.0);

Tailwind

colors: {
  custom: {
    50: '#6b75ad',
    500: '#1f418a',
    950: '#000000',
  },
}

SCSS

$custom: #1f418a;
$custom-light: #6b75ad;
$custom-dark: #000000;

JSON

{
  "hex": "#1f418a",
  "rgb": {
    "r": 31,
    "g": 65,
    "b": 138
  },
  "hsl": {
    "h": 220.935,
    "s": 63.314,
    "l": 33.137
  },
  "oklch": {
    "l": 0.39472,
    "c": 0.12833,
    "h": 263
  },
  "luminance": 0.05907
}

Semantic roles & 50–950 ramp

primary

#1F418A

secondary

#BA974B

accent

#B241E6

background

#F6F7FA

surface

#ECEDF4

border

#C7C8CE

text

#080810

muted

#7A7B7F

Preview Lab

Preview with #1F418A

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

Preview Lab → · Contrast checker → · Palette generator →