#1F418D#1F418D

#1F418D is a dark, vivid blue. Relative luminance 0.060; OKLCH L 39.7% C 0.133 H 263.4°. Best body text is #FFFFFF at 9.55:1 contrast (WCAG AA passes).

Color values

HEX	#1F418D
RGB	rgb(31, 65, 141)
HSL	hsl(221, 64%, 34%)
HSV	hsv(221, 78%, 55%)
CMYK	cmyk(78%, 53.9%, 0%, 44.7%)
CIE-LAB	lab(29.40, 16.48, -45.76)
CIE-LCH	lch(29.40, 48.63, 289.81°)
OKLab	oklab(39.71% -0.0152 -0.1318)
OKLCH	oklch(39.71% 0.133 263.4)
XYZ	xyz(7.2614, 5.9942, 25.9684)
Luminance	0.0600 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1F418D #8D6B1F

analogous

#1F788D #1F418D #341F8D

triadic

#1F418D #8D1F41 #418D1F

tetradic

#1F418D #8D1F78 #8D6B1F #1F8D34

square

#1F418D #8D1F78 #8D6B1F #1F8D34

split-complementary

#1F418D #8D341F #788D1F

monochromatic

#091329 #142A5B #1F418D #2A58BF #4E79D8

Accessibility & contrast

On white

9.55

#1F418D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.20

#1F418D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1F418D

9.55:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1F418D	#FFFFFF	#000000	##FFFFFF
##1F418D	1.00	9.55	2.20	9.55
#FFFFFF	9.55	1.00	21.00	1.00
#000000	2.20	21.00	1.00	21.00
##FFFFFF	9.55	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0A4B90

Deuteranopia (green-blind)

#00408B

Tritanopia (blue-blind)

#005360

Achromatopsia (no color)

#454545

Design tokens & code

CSS

--color: #1f418d;
/* rgb */ color: rgb(31, 65, 141);
/* oklch */ color: oklch(39.7% 0.133 263.4);

Tailwind

colors: {
  custom: {
    50: '#6c75af',
    500: '#1f418d',
    950: '#000000',
  },
}

SCSS

$custom: #1f418d;
$custom-light: #6c75af;
$custom-dark: #000000;

JSON

{
  "hex": "#1f418d",
  "rgb": {
    "r": 31,
    "g": 65,
    "b": 141
  },
  "hsl": {
    "h": 221.455,
    "s": 63.953,
    "l": 33.725
  },
  "oklch": {
    "l": 0.39713,
    "c": 0.13264,
    "h": 263.4
  },
  "luminance": 0.05995
}

Semantic roles & 50–950 ramp

primary

#1F418D

secondary

#BB994D

accent

#B441E7

background

#F7F7FA

surface

#EDEDF4

border

#C8C8CE

text

#080810

muted

#7B7B7F

Preview Lab

Preview with #1F418D

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

Preview Lab → · Contrast checker → · Palette generator →