#1F418C#1F418C

#1F418C is a dark, vivid blue. Relative luminance 0.060; OKLCH L 39.6% C 0.131 H 263.3°. Best body text is #FFFFFF at 9.58:1 contrast (WCAG AA passes).

Color values

HEX	#1F418C
RGB	rgb(31, 65, 140)
HSL	hsl(221, 64%, 34%)
HSV	hsv(221, 78%, 55%)
CMYK	cmyk(77.9%, 53.6%, 0%, 45.1%)
CIE-LAB	lab(29.32, 16.08, -45.26)
CIE-LCH	lch(29.32, 48.03, 289.56°)
OKLab	oklab(39.63% -0.0153 -0.1303)
OKLCH	oklch(39.63% 0.131 263.3)
XYZ	xyz(7.1873, 5.9645, 25.5783)
Luminance	0.0597 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1F418C #8C6A1F

analogous

#1F778C #1F418C #331F8C

triadic

#1F418C #8C1F41 #418C1F

tetradic

#1F418C #8C1F77 #8C6A1F #1F8C33

square

#1F418C #8C1F77 #8C6A1F #1F8C33

split-complementary

#1F418C #8C331F #778C1F

monochromatic

#091228 #142A5A #1F418C #2A58BE #4E79D8

Accessibility & contrast

On white

9.58

#1F418C on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.19

#1F418C on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1F418C

9.58:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1F418C	#FFFFFF	#000000	##FFFFFF
##1F418C	1.00	9.58	2.19	9.58
#FFFFFF	9.58	1.00	21.00	1.00
#000000	2.19	21.00	1.00	21.00
##FFFFFF	9.58	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0D4A8F

Deuteranopia (green-blind)

#00408B

Tritanopia (blue-blind)

#005360

Achromatopsia (no color)

#454545

Design tokens & code

CSS

--color: #1f418c;
/* rgb */ color: rgb(31, 65, 140);
/* oklch */ color: oklch(39.6% 0.131 263.3);

Tailwind

colors: {
  custom: {
    50: '#6c75ae',
    500: '#1f418c',
    950: '#000000',
  },
}

SCSS

$custom: #1f418c;
$custom-light: #6c75ae;
$custom-dark: #000000;

JSON

{
  "hex": "#1f418c",
  "rgb": {
    "r": 31,
    "g": 65,
    "b": 140
  },
  "hsl": {
    "h": 221.284,
    "s": 63.743,
    "l": 33.529
  },
  "oklch": {
    "l": 0.39632,
    "c": 0.13122,
    "h": 263.3
  },
  "luminance": 0.05965
}

Semantic roles & 50–950 ramp

primary

#1F418C

secondary

#BB984C

accent

#B341E7

background

#F6F7FA

surface

#ECEDF4

border

#C7C8CE

text

#080810

muted

#7A7B7F

Preview Lab

Preview with #1F418C

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

Preview Lab → · Contrast checker → · Palette generator →