#1F226F#1F226F

#1F226F is a dark, vivid blue. Relative luminance 0.026; OKLCH L 30.6% C 0.130 H 274.0°. Best body text is #FFFFFF at 13.85:1 contrast (WCAG AA passes).

Color values

HEX	#1F226F
RGB	rgb(31, 34, 111)
HSL	hsl(238, 56%, 28%)
HSV	hsv(238, 72%, 44%)
CMYK	cmyk(72.1%, 69.4%, 0%, 56.5%)
CIE-LAB	lab(18.29, 26.20, -44.91)
CIE-LCH	lch(18.29, 52.00, 300.26°)
OKLab	oklab(30.63% 0.009 -0.1297)
OKLCH	oklch(30.63% 0.13 274)
XYZ	xyz(4.0054, 2.5827, 15.3233)
Luminance	0.0258 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1F226F #6F6C1F

analogous

#1F4A6F #1F226F #441F6F

triadic

#1F226F #6F1F22 #226F1F

tetradic

#1F226F #6F1F4A #6F6C1F #1F6F44

square

#1F226F #6F1F4A #6F6C1F #1F6F44

split-complementary

#1F226F #6F441F #4A6F1F

monochromatic

#070718 #12133F #1F226F #2C319F #3F44C9

Accessibility & contrast

On white

13.85

#1F226F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.52

#1F226F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1F226F

13.85:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1F226F	#FFFFFF	#000000	##FFFFFF
##1F226F	1.00	13.85	1.52	13.85
#FFFFFF	13.85	1.00	21.00	1.00
#000000	1.52	21.00	1.00	21.00
##FFFFFF	13.85	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003071

Deuteranopia (green-blind)

#00296E

Tritanopia (blue-blind)

#003645

Achromatopsia (no color)

#2D2D2D

Design tokens & code

CSS

--color: #1f226f;
/* rgb */ color: rgb(31, 34, 111);
/* oklch */ color: oklch(30.6% 0.130 274.0);

Tailwind

colors: {
  custom: {
    50: '#675d99',
    500: '#1f226f',
    950: '#000000',
  },
}

SCSS

$custom: #1f226f;
$custom-light: #675d99;
$custom-dark: #000000;

JSON

{
  "hex": "#1f226f",
  "rgb": {
    "r": 31,
    "g": 34,
    "b": 111
  },
  "hsl": {
    "h": 237.75,
    "s": 56.338,
    "l": 27.843
  },
  "oklch": {
    "l": 0.30634,
    "c": 0.13001,
    "h": 274
  },
  "luminance": 0.02583
}

Semantic roles & 50–950 ramp

primary

#1F226F

secondary

#A3A047

accent

#DA48E0

background

#F6F5F9

surface

#EBE9F2

border

#C6C5CC

text

#07040E

muted

#7A797E

Preview Lab

Preview with #1F226F

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

Preview Lab → · Contrast checker → · Palette generator →