#1F2297#1F2297

#1F2297 is a dark, vivid blue. Relative luminance 0.037; OKLCH L 35.0% C 0.183 H 270.9°. Best body text is #FFFFFF at 12.11:1 contrast (WCAG AA passes).

Color values

HEX	#1F2297
RGB	rgb(31, 34, 151)
HSL	hsl(239, 66%, 36%)
HSV	hsv(239, 79%, 59%)
CMYK	cmyk(79.5%, 77.5%, 0%, 40.8%)
CIE-LAB	lab(22.55, 40.62, -63.14)
CIE-LCH	lch(22.55, 75.08, 302.75°)
OKLab	oklab(34.96% 0.0028 -0.1828)
OKLCH	oklch(34.96% 0.183 270.9)
XYZ	xyz(6.7211, 3.6690, 29.6261)
Luminance	0.0367 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1F2297 #97941F

analogous

#1F5E97 #1F2297 #581F97

triadic

#1F2297 #971F22 #22971F

tetradic

#1F2297 #971F5E #97941F #1F9758

square

#1F2297 #971F5E #97941F #1F9758

split-complementary

#1F2297 #97581F #5E971F

monochromatic

#0A0B31 #151764 #1F2297 #292DCA #5458DC

Accessibility & contrast

On white

12.11

#1F2297 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.73

#1F2297 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1F2297

12.11:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1F2297	#FFFFFF	#000000	##FFFFFF
##1F2297	1.00	12.11	1.73	12.11
#FFFFFF	12.11	1.00	21.00	1.00
#000000	1.73	21.00	1.00	21.00
##FFFFFF	12.11	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003C9A

Deuteranopia (green-blind)

#003095

Tritanopia (blue-blind)

#00455B

Achromatopsia (no color)

#363636

Design tokens & code

CSS

--color: #1f2297;
/* rgb */ color: rgb(31, 34, 151);
/* oklch */ color: oklch(35.0% 0.183 270.9);

Tailwind

colors: {
  custom: {
    50: '#715fb7',
    500: '#1f2297',
    950: '#000000',
  },
}

SCSS

$custom: #1f2297;
$custom-light: #715fb7;
$custom-dark: #000000;

JSON

{
  "hex": "#1f2297",
  "rgb": {
    "r": 31,
    "g": 34,
    "b": 151
  },
  "hsl": {
    "h": 238.5,
    "s": 65.934,
    "l": 35.686
  },
  "oklch": {
    "l": 0.34958,
    "c": 0.18286,
    "h": 270.9
  },
  "luminance": 0.0367
}

Semantic roles & 50–950 ramp

primary

#1F2297

secondary

#BFBD52

accent

#E53FE9

background

#F7F5FB

surface

#EEE9F6

border

#C9C5D0

text

#090511

muted

#7B7980

Preview Lab

Preview with #1F2297

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

Preview Lab → · Contrast checker → · Palette generator →