#1F208B#1F208B

#1F208B is a dark, vivid blue. Relative luminance 0.032; OKLCH L 33.3% C 0.170 H 272.0°. Best body text is #FFFFFF at 12.82:1 contrast (WCAG AA passes).

Color values

HEX	#1F208B
RGB	rgb(31, 32, 139)
HSL	hsl(239, 64%, 33%)
HSV	hsv(239, 78%, 55%)
CMYK	cmyk(77.7%, 77%, 0%, 45.5%)
CIE-LAB	lab(20.78, 37.63, -58.62)
CIE-LCH	lch(20.78, 69.66, 302.70°)
OKLab	oklab(33.31% 0.0059 -0.1697)
OKLCH	oklch(33.31% 0.17 272)
XYZ	xyz(5.7402, 3.1878, 24.7339)
Luminance	0.0319 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1F208B #8B8A1F

analogous

#1F568B #1F208B #541F8B

triadic

#1F208B #8B1F20 #208B1F

tetradic

#1F208B #8B1F56 #8B8A1F #1F8B54

square

#1F208B #8B1F56 #8B8A1F #1F8B54

split-complementary

#1F208B #8B541F #568B1F

monochromatic

#090927 #141459 #1F208B #2A2CBD #4D4ED7

Accessibility & contrast

On white

12.82

#1F208B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.64

#1F208B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1F208B

12.82:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1F208B	#FFFFFF	#000000	##FFFFFF
##1F208B	1.00	12.82	1.64	12.82
#FFFFFF	12.82	1.00	21.00	1.00
#000000	1.64	21.00	1.00	21.00
##FFFFFF	12.82	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00378E

Deuteranopia (green-blind)

#002D89

Tritanopia (blue-blind)

#003F54

Achromatopsia (no color)

#323232

Design tokens & code

CSS

--color: #1f208b;
/* rgb */ color: rgb(31, 32, 139);
/* oklch */ color: oklch(33.3% 0.170 272.0);

Tailwind

colors: {
  custom: {
    50: '#6e5dae',
    500: '#1f208b',
    950: '#000000',
  },
}

SCSS

$custom: #1f208b;
$custom-light: #6e5dae;
$custom-dark: #000000;

JSON

{
  "hex": "#1f208b",
  "rgb": {
    "r": 31,
    "g": 32,
    "b": 139
  },
  "hsl": {
    "h": 239.444,
    "s": 63.529,
    "l": 33.333
  },
  "oklch": {
    "l": 0.3331,
    "c": 0.16978,
    "h": 272
  },
  "luminance": 0.03188
}

Semantic roles & 50–950 ramp

primary

#1F208B

secondary

#BAB94C

accent

#E541E7

background

#F7F5FA

surface

#EDE9F5

border

#C8C5CF

text

#090410

muted

#7B797F

Preview Lab

Preview with #1F208B

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

Preview Lab → · Contrast checker → · Palette generator →