#1F2197#1F2197

#1F2197 is a dark, vivid blue. Relative luminance 0.036; OKLCH L 34.8% C 0.184 H 271.0°. Best body text is #FFFFFF at 12.19:1 contrast (WCAG AA passes).

Color values

HEX	#1F2197
RGB	rgb(31, 33, 151)
HSL	hsl(239, 66%, 36%)
HSV	hsv(239, 79%, 59%)
CMYK	cmyk(79.5%, 78.1%, 0%, 40.8%)
CIE-LAB	lab(22.35, 41.18, -63.47)
CIE-LCH	lch(22.35, 75.66, 302.98°)
OKLab	oklab(34.82% 0.0032 -0.1838)
OKLCH	oklch(34.82% 0.184 271)
XYZ	xyz(6.6930, 3.6126, 29.6167)
Luminance	0.0361 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1F2197 #97951F

analogous

#1F5D97 #1F2197 #591F97

triadic

#1F2197 #971F21 #21971F

tetradic

#1F2197 #971F5D #97951F #1F9759

square

#1F2197 #971F5D #97951F #1F9759

split-complementary

#1F2197 #97591F #5D971F

monochromatic

#0A0B31 #151664 #1F2197 #292CCA #5457DC

Accessibility & contrast

On white

12.19

#1F2197 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.72

#1F2197 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1F2197

12.19:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1F2197	#FFFFFF	#000000	##FFFFFF
##1F2197	1.00	12.19	1.72	12.19
#FFFFFF	12.19	1.00	21.00	1.00
#000000	1.72	21.00	1.00	21.00
##FFFFFF	12.19	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003B9A

Deuteranopia (green-blind)

#002F95

Tritanopia (blue-blind)

#00455B

Achromatopsia (no color)

#353535

Design tokens & code

CSS

--color: #1f2197;
/* rgb */ color: rgb(31, 33, 151);
/* oklch */ color: oklch(34.8% 0.184 271.0);

Tailwind

colors: {
  custom: {
    50: '#715eb7',
    500: '#1f2197',
    950: '#000000',
  },
}

SCSS

$custom: #1f2197;
$custom-light: #715eb7;
$custom-dark: #000000;

JSON

{
  "hex": "#1f2197",
  "rgb": {
    "r": 31,
    "g": 33,
    "b": 151
  },
  "hsl": {
    "h": 239,
    "s": 65.934,
    "l": 35.686
  },
  "oklch": {
    "l": 0.34818,
    "c": 0.18381,
    "h": 271
  },
  "luminance": 0.03613
}

Semantic roles & 50–950 ramp

primary

#1F2197

secondary

#BFBE52

accent

#E63FE9

background

#F7F5FB

surface

#EEE9F6

border

#C9C5D0

text

#090411

muted

#7B7980

Preview Lab

Preview with #1F2197

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

Preview Lab → · Contrast checker → · Palette generator →