#1F209F#1F209F

#1F209F is a dark, vivid blue. Relative luminance 0.038; OKLCH L 35.6% C 0.194 H 270.6°. Best body text is #FFFFFF at 11.89:1 contrast (WCAG AA passes).

Color values

HEX	#1F209F
RGB	rgb(31, 32, 159)
HSL	hsl(240, 67%, 37%)
HSV	hsv(240, 81%, 62%)
CMYK	cmyk(80.5%, 79.9%, 0%, 37.6%)
CIE-LAB	lab(23.09, 44.41, -67.14)
CIE-LCH	lch(23.09, 80.50, 303.48°)
OKLab	oklab(35.61% 0.0019 -0.1944)
OKLCH	oklch(35.61% 0.194 270.6)
XYZ	xyz(7.3375, 3.8267, 33.1461)
Luminance	0.0383 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1F209F #9F9E1F

analogous

#1F609F #1F209F #5E1F9F

triadic

#1F209F #9F1F20 #209F1F

tetradic

#1F209F #9F1F60 #9F9E1F #1F9F5E

square

#1F209F #9F1F60 #9F9E1F #1F9F5E

split-complementary

#1F209F #9F5E1F #609F1F

monochromatic

#0B0B39 #15166C #1F209F #292AD2 #5A5BDF

Accessibility & contrast

On white

11.89

#1F209F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.77

#1F209F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1F209F

11.89:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1F209F	#FFFFFF	#000000	##FFFFFF
##1F209F	1.00	11.89	1.77	11.89
#FFFFFF	11.89	1.00	21.00	1.00
#000000	1.77	21.00	1.00	21.00
##FFFFFF	11.89	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003DA3

Deuteranopia (green-blind)

#00309D

Tritanopia (blue-blind)

#00475F

Achromatopsia (no color)

#373737

Design tokens & code

CSS

--color: #1f209f;
/* rgb */ color: rgb(31, 32, 159);
/* oklch */ color: oklch(35.6% 0.194 270.6);

Tailwind

colors: {
  custom: {
    50: '#745ebd',
    500: '#1f209f',
    950: '#000000',
  },
}

SCSS

$custom: #1f209f;
$custom-light: #745ebd;
$custom-dark: #000000;

JSON

{
  "hex": "#1f209f",
  "rgb": {
    "r": 31,
    "g": 32,
    "b": 159
  },
  "hsl": {
    "h": 239.531,
    "s": 67.368,
    "l": 37.255
  },
  "oklch": {
    "l": 0.35612,
    "c": 0.19443,
    "h": 270.6
  },
  "luminance": 0.03828
}

Semantic roles & 50–950 ramp

primary

#1F209F

secondary

#C3C257

accent

#E93EEA

background

#F7F5FB

surface

#EEE9F7

border

#C9C5D0

text

#0A0412

muted

#7C7981

Preview Lab

Preview with #1F209F

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

Preview Lab → · Contrast checker → · Palette generator →