#1F408D#1F408D

#1F408D is a dark, vivid blue. Relative luminance 0.059; OKLCH L 39.5% C 0.134 H 263.8°. Best body text is #FFFFFF at 9.65:1 contrast (WCAG AA passes).

Color values

HEX	#1F408D
RGB	rgb(31, 64, 141)
HSL	hsl(222, 64%, 34%)
HSV	hsv(222, 78%, 55%)
CMYK	cmyk(78%, 54.6%, 0%, 44.7%)
CIE-LAB	lab(29.11, 17.17, -46.23)
CIE-LCH	lch(29.11, 49.31, 290.38°)
OKLab	oklab(39.49% -0.0144 -0.1332)
OKLCH	oklch(39.49% 0.134 263.8)
XYZ	xyz(7.2045, 5.8804, 25.9495)
Luminance	0.0588 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1F408D #8D6C1F

analogous

#1F778D #1F408D #351F8D

triadic

#1F408D #8D1F40 #408D1F

tetradic

#1F408D #8D1F77 #8D6C1F #1F8D35

square

#1F408D #8D1F77 #8D6C1F #1F8D35

split-complementary

#1F408D #8D351F #778D1F

monochromatic

#091229 #14295B #1F408D #2A57BF #4E78D8

Accessibility & contrast

On white

9.65

#1F408D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.18

#1F408D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1F408D

9.65:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1F408D	#FFFFFF	#000000	##FFFFFF
##1F408D	1.00	9.65	2.18	9.65
#FFFFFF	9.65	1.00	21.00	1.00
#000000	2.18	21.00	1.00	21.00
##FFFFFF	9.65	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#054A90

Deuteranopia (green-blind)

#00408B

Tritanopia (blue-blind)

#005360

Achromatopsia (no color)

#454545

Design tokens & code

CSS

--color: #1f408d;
/* rgb */ color: rgb(31, 64, 141);
/* oklch */ color: oklch(39.5% 0.134 263.8);

Tailwind

colors: {
  custom: {
    50: '#6c74af',
    500: '#1f408d',
    950: '#000000',
  },
}

SCSS

$custom: #1f408d;
$custom-light: #6c74af;
$custom-dark: #000000;

JSON

{
  "hex": "#1f408d",
  "rgb": {
    "r": 31,
    "g": 64,
    "b": 141
  },
  "hsl": {
    "h": 222,
    "s": 63.953,
    "l": 33.725
  },
  "oklch": {
    "l": 0.39493,
    "c": 0.13394,
    "h": 263.8
  },
  "luminance": 0.05881
}

Semantic roles & 50–950 ramp

primary

#1F408D

secondary

#BB9A4D

accent

#B541E7

background

#F7F7FA

surface

#EDEDF4

border

#C8C8CE

text

#080810

muted

#7B7B7F

Preview Lab

Preview with #1F408D

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

Preview Lab → · Contrast checker → · Palette generator →