#1F2390#1F2390

#1F2390 is a dark, vivid blue. Relative luminance 0.035; OKLCH L 34.3% C 0.173 H 271.2°. Best body text is #FFFFFF at 12.34:1 contrast (WCAG AA passes).

Color values

HEX	#1F2390
RGB	rgb(31, 35, 144)
HSL	hsl(238, 65%, 34%)
HSV	hsv(238, 78%, 56%)
CMYK	cmyk(78.5%, 75.7%, 0%, 43.5%)
CIE-LAB	lab(21.97, 37.61, -59.77)
CIE-LCH	lch(21.97, 70.62, 302.18°)
OKLab	oklab(34.32% 0.0037 -0.1731)
OKLCH	oklch(34.32% 0.173 271.2)
XYZ	xyz(6.1984, 3.5063, 26.7303)
Luminance	0.0351 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1F2390 #908C1F

analogous

#1F5C90 #1F2390 #541F90

triadic

#1F2390 #901F23 #23901F

tetradic

#1F2390 #901F5C #908C1F #1F9054

square

#1F2390 #901F5C #908C1F #1F9054

split-complementary

#1F2390 #90541F #5C901F

monochromatic

#090B2B #14175E #1F2390 #2A2FC2 #5055D9

Accessibility & contrast

On white

12.34

#1F2390 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.70

#1F2390 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1F2390

12.34:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1F2390	#FFFFFF	#000000	##FFFFFF
##1F2390	1.00	12.34	1.70	12.34
#FFFFFF	12.34	1.00	21.00	1.00
#000000	1.70	21.00	1.00	21.00
##FFFFFF	12.34	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003A93

Deuteranopia (green-blind)

#002F8E

Tritanopia (blue-blind)

#004357

Achromatopsia (no color)

#353535

Design tokens & code

CSS

--color: #1f2390;
/* rgb */ color: rgb(31, 35, 144);
/* oklch */ color: oklch(34.3% 0.173 271.2);

Tailwind

colors: {
  custom: {
    50: '#6f5fb2',
    500: '#1f2390',
    950: '#000000',
  },
}

SCSS

$custom: #1f2390;
$custom-light: #6f5fb2;
$custom-dark: #000000;

JSON

{
  "hex": "#1f2390",
  "rgb": {
    "r": 31,
    "g": 35,
    "b": 144
  },
  "hsl": {
    "h": 237.876,
    "s": 64.571,
    "l": 34.314
  },
  "oklch": {
    "l": 0.34316,
    "c": 0.1731,
    "h": 271.2
  },
  "luminance": 0.03507
}

Semantic roles & 50–950 ramp

primary

#1F2390

secondary

#BCB84E

accent

#E240E8

background

#F7F5FB

surface

#EDE9F6

border

#C8C5D0

text

#090511

muted

#7B7980

Preview Lab

Preview with #1F2390

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

Preview Lab → · Contrast checker → · Palette generator →