#1F2398#1F2398

#1F2398 is a dark, vivid blue. Relative luminance 0.038; OKLCH L 35.2% C 0.183 H 270.7°. Best body text is #FFFFFF at 11.99:1 contrast (WCAG AA passes).

Color values

HEX	#1F2398
RGB	rgb(31, 35, 152)
HSL	hsl(238, 66%, 36%)
HSV	hsv(238, 80%, 60%)
CMYK	cmyk(79.6%, 77%, 0%, 40.4%)
CIE-LAB	lab(22.86, 40.39, -63.24)
CIE-LCH	lch(22.86, 75.03, 302.57°)
OKLab	oklab(35.21% 0.0023 -0.1831)
OKLCH	oklch(35.21% 0.183 270.7)
XYZ	xyz(6.8317, 3.7596, 30.0653)
Luminance	0.0376 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1F2398 #98941F

analogous

#1F5F98 #1F2398 #581F98

triadic

#1F2398 #981F23 #23981F

tetradic

#1F2398 #981F5F #98941F #1F9858

square

#1F2398 #981F5F #98941F #1F9858

split-complementary

#1F2398 #98581F #5F981F

monochromatic

#0A0C32 #151765 #1F2398 #292FCB #555ADC

Accessibility & contrast

On white

11.99

#1F2398 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.75

#1F2398 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1F2398

11.99:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1F2398	#FFFFFF	#000000	##FFFFFF
##1F2398	1.00	11.99	1.75	11.99
#FFFFFF	11.99	1.00	21.00	1.00
#000000	1.75	21.00	1.00	21.00
##FFFFFF	11.99	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003D9B

Deuteranopia (green-blind)

#003096

Tritanopia (blue-blind)

#00465C

Achromatopsia (no color)

#373737

Design tokens & code

CSS

--color: #1f2398;
/* rgb */ color: rgb(31, 35, 152);
/* oklch */ color: oklch(35.2% 0.183 270.7);

Tailwind

colors: {
  custom: {
    50: '#7260b8',
    500: '#1f2398',
    950: '#000000',
  },
}

SCSS

$custom: #1f2398;
$custom-light: #7260b8;
$custom-dark: #000000;

JSON

{
  "hex": "#1f2398",
  "rgb": {
    "r": 31,
    "g": 35,
    "b": 152
  },
  "hsl": {
    "h": 238.017,
    "s": 66.12,
    "l": 35.882
  },
  "oklch": {
    "l": 0.35214,
    "c": 0.18314,
    "h": 270.7
  },
  "luminance": 0.0376
}

Semantic roles & 50–950 ramp

primary

#1F2398

secondary

#C0BC53

accent

#E33FE9

background

#F7F5FB

surface

#EEE9F6

border

#C9C5D0

text

#090511

muted

#7B7980

Preview Lab

Preview with #1F2398

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

Preview Lab → · Contrast checker → · Palette generator →