#1F2298#1F2298

#1F2298 is a dark, vivid blue. Relative luminance 0.037; OKLCH L 35.1% C 0.184 H 270.8°. Best body text is #FFFFFF at 12.07:1 contrast (WCAG AA passes).

Color values

HEX	#1F2298
RGB	rgb(31, 34, 152)
HSL	hsl(239, 66%, 36%)
HSV	hsv(239, 80%, 60%)
CMYK	cmyk(79.6%, 77.6%, 0%, 40.4%)
CIE-LAB	lab(22.66, 40.96, -63.57)
CIE-LCH	lch(22.66, 75.62, 302.80°)
OKLab	oklab(35.07% 0.0026 -0.1841)
OKLCH	oklch(35.07% 0.184 270.8)
XYZ	xyz(6.8027, 3.7016, 30.0556)
Luminance	0.0370 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1F2298 #98951F

analogous

#1F5E98 #1F2298 #581F98

triadic

#1F2298 #981F22 #22981F

tetradic

#1F2298 #981F5E #98951F #1F9858

square

#1F2298 #981F5E #98951F #1F9858

split-complementary

#1F2298 #98581F #5E981F

monochromatic

#0A0B32 #151765 #1F2298 #292DCB #5558DC

Accessibility & contrast

On white

12.07

#1F2298 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.74

#1F2298 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1F2298

12.07:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1F2298	#FFFFFF	#000000	##FFFFFF
##1F2298	1.00	12.07	1.74	12.07
#FFFFFF	12.07	1.00	21.00	1.00
#000000	1.74	21.00	1.00	21.00
##FFFFFF	12.07	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003C9B

Deuteranopia (green-blind)

#003096

Tritanopia (blue-blind)

#00455C

Achromatopsia (no color)

#363636

Design tokens & code

CSS

--color: #1f2298;
/* rgb */ color: rgb(31, 34, 152);
/* oklch */ color: oklch(35.1% 0.184 270.8);

Tailwind

colors: {
  custom: {
    50: '#725fb8',
    500: '#1f2298',
    950: '#000000',
  },
}

SCSS

$custom: #1f2298;
$custom-light: #725fb8;
$custom-dark: #000000;

JSON

{
  "hex": "#1f2298",
  "rgb": {
    "r": 31,
    "g": 34,
    "b": 152
  },
  "hsl": {
    "h": 238.512,
    "s": 66.12,
    "l": 35.882
  },
  "oklch": {
    "l": 0.35072,
    "c": 0.1841,
    "h": 270.8
  },
  "luminance": 0.03702
}

Semantic roles & 50–950 ramp

primary

#1F2298

secondary

#C0BD53

accent

#E53FE9

background

#F7F5FB

surface

#EEE9F6

border

#C9C5D0

text

#090511

muted

#7B7980

Preview Lab

Preview with #1F2298

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

Preview Lab → · Contrast checker → · Palette generator →