#1F218A#1F218A

#1F218A is a dark, vivid blue. Relative luminance 0.032; OKLCH L 33.3% C 0.167 H 271.9°. Best body text is #FFFFFF at 12.78:1 contrast (WCAG AA passes).

Color values

HEX	#1F218A
RGB	rgb(31, 33, 138)
HSL	hsl(239, 63%, 33%)
HSV	hsv(239, 78%, 54%)
CMYK	cmyk(77.5%, 76.1%, 0%, 45.9%)
CIE-LAB	lab(20.88, 36.69, -57.83)
CIE-LCH	lch(20.88, 68.49, 302.39°)
OKLab	oklab(33.35% 0.0056 -0.1674)
OKLCH	oklch(33.35% 0.167 271.9)
XYZ	xyz(5.6948, 3.2134, 24.3599)
Luminance	0.0321 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1F218A #8A881F

analogous

#1F568A #1F218A #531F8A

triadic

#1F218A #8A1F21 #218A1F

tetradic

#1F218A #8A1F56 #8A881F #1F8A53

square

#1F218A #8A1F56 #8A881F #1F8A53

split-complementary

#1F218A #8A531F #568A1F

monochromatic

#090926 #141558 #1F218A #2A2DBC #4C4FD7

Accessibility & contrast

On white

12.78

#1F218A on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.64

#1F218A on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1F218A

12.78:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1F218A	#FFFFFF	#000000	##FFFFFF
##1F218A	1.00	12.78	1.64	12.78
#FFFFFF	12.78	1.00	21.00	1.00
#000000	1.64	21.00	1.00	21.00
##FFFFFF	12.78	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00378D

Deuteranopia (green-blind)

#002D88

Tritanopia (blue-blind)

#004054

Achromatopsia (no color)

#323232

Design tokens & code

CSS

--color: #1f218a;
/* rgb */ color: rgb(31, 33, 138);
/* oklch */ color: oklch(33.3% 0.167 271.9);

Tailwind

colors: {
  custom: {
    50: '#6e5ead',
    500: '#1f218a',
    950: '#000000',
  },
}

SCSS

$custom: #1f218a;
$custom-light: #6e5ead;
$custom-dark: #000000;

JSON

{
  "hex": "#1f218a",
  "rgb": {
    "r": 31,
    "g": 33,
    "b": 138
  },
  "hsl": {
    "h": 238.879,
    "s": 63.314,
    "l": 33.137
  },
  "oklch": {
    "l": 0.33346,
    "c": 0.16749,
    "h": 271.9
  },
  "luminance": 0.03214
}

Semantic roles & 50–950 ramp

primary

#1F218A

secondary

#BAB84B

accent

#E341E6

background

#F7F5FA

surface

#EDE9F4

border

#C8C5CE

text

#080410

muted

#7B797F

Preview Lab

Preview with #1F218A

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

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