#1F418F#1F418F

#1F418F is a dark, vivid blue. Relative luminance 0.061; OKLCH L 39.9% C 0.136 H 263.7°. Best body text is #FFFFFF at 9.50:1 contrast (WCAG AA passes).

Color values

HEX	#1F418F
RGB	rgb(31, 65, 143)
HSL	hsl(222, 64%, 34%)
HSV	hsv(222, 78%, 56%)
CMYK	cmyk(78.3%, 54.5%, 0%, 43.9%)
CIE-LAB	lab(29.55, 17.28, -46.74)
CIE-LCH	lch(29.55, 49.84, 290.29°)
OKLab	oklab(39.88% -0.015 -0.1347)
OKLCH	oklch(39.88% 0.136 263.7)
XYZ	xyz(7.4115, 6.0542, 26.7592)
Luminance	0.0605 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1F418F #8F6D1F

analogous

#1F798F #1F418F #351F8F

triadic

#1F418F #8F1F41 #418F1F

tetradic

#1F418F #8F1F79 #8F6D1F #1F8F35

square

#1F418F #8F1F79 #8F6D1F #1F8F35

split-complementary

#1F418F #8F351F #798F1F

monochromatic

#09132A #142A5D #1F418F #2A58C1 #4F79D9

Accessibility & contrast

On white

9.50

#1F418F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.21

#1F418F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1F418F

9.50:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1F418F	#FFFFFF	#000000	##FFFFFF
##1F418F	1.00	9.50	2.21	9.50
#FFFFFF	9.50	1.00	21.00	1.00
#000000	2.21	21.00	1.00	21.00
##FFFFFF	9.50	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#054B92

Deuteranopia (green-blind)

#00418D

Tritanopia (blue-blind)

#005461

Achromatopsia (no color)

#464646

Design tokens & code

CSS

--color: #1f418f;
/* rgb */ color: rgb(31, 65, 143);
/* oklch */ color: oklch(39.9% 0.136 263.7);

Tailwind

colors: {
  custom: {
    50: '#6d75b0',
    500: '#1f418f',
    950: '#000000',
  },
}

SCSS

$custom: #1f418f;
$custom-light: #6d75b0;
$custom-dark: #000000;

JSON

{
  "hex": "#1f418f",
  "rgb": {
    "r": 31,
    "g": 65,
    "b": 143
  },
  "hsl": {
    "h": 221.786,
    "s": 64.368,
    "l": 34.118
  },
  "oklch": {
    "l": 0.39875,
    "c": 0.1355,
    "h": 263.7
  },
  "luminance": 0.06055
}

Semantic roles & 50–950 ramp

primary

#1F418F

secondary

#BC9B4E

accent

#B540E7

background

#F7F7FA

surface

#EDEDF5

border

#C8C8CF

text

#080811

muted

#7B7B80

Preview Lab

Preview with #1F418F

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

Preview Lab → · Contrast checker → · Palette generator →