#1F3290#1F3290

#1F3290 is a dark, vivid blue. Relative luminance 0.046; OKLCH L 36.9% C 0.156 H 268.4°. Best body text is #FFFFFF at 10.95:1 contrast (WCAG AA passes).

Color values

HEX	#1F3290
RGB	rgb(31, 50, 144)
HSL	hsl(230, 65%, 34%)
HSV	hsv(230, 78%, 56%)
CMYK	cmyk(78.5%, 65.3%, 0%, 43.5%)
CIE-LAB	lab(25.52, 27.97, -53.93)
CIE-LCH	lch(25.52, 60.75, 297.42°)
OKLab	oklab(36.89% -0.0043 -0.156)
OKLCH	oklch(36.89% 0.156 268.4)
XYZ	xyz(6.7380, 4.5854, 26.9101)
Luminance	0.0459 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1F3290 #907D1F

analogous

#1F6A90 #1F3290 #451F90

triadic

#1F3290 #901F32 #32901F

tetradic

#1F3290 #901F6A #907D1F #1F9045

square

#1F3290 #901F6A #907D1F #1F9045

split-complementary

#1F3290 #90451F #6A901F

monochromatic

#090F2B #14215E #1F3290 #2A43C2 #5067D9

Accessibility & contrast

On white

10.95

#1F3290 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.92

#1F3290 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1F3290

10.95:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1F3290	#FFFFFF	#000000	##FFFFFF
##1F3290	1.00	10.95	1.92	10.95
#FFFFFF	10.95	1.00	21.00	1.00
#000000	1.92	21.00	1.00	21.00
##FFFFFF	10.95	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004293

Deuteranopia (green-blind)

#00378E

Tritanopia (blue-blind)

#004B5C

Achromatopsia (no color)

#3C3C3C

Design tokens & code

CSS

--color: #1f3290;
/* rgb */ color: rgb(31, 50, 144);
/* oklch */ color: oklch(36.9% 0.156 268.4);

Tailwind

colors: {
  custom: {
    50: '#6e69b1',
    500: '#1f3290',
    950: '#000000',
  },
}

SCSS

$custom: #1f3290;
$custom-light: #6e69b1;
$custom-dark: #000000;

JSON

{
  "hex": "#1f3290",
  "rgb": {
    "r": 31,
    "g": 50,
    "b": 144
  },
  "hsl": {
    "h": 229.912,
    "s": 64.571,
    "l": 34.314
  },
  "oklch": {
    "l": 0.36889,
    "c": 0.15604,
    "h": 268.4
  },
  "luminance": 0.04586
}

Semantic roles & 50–950 ramp

primary

#1F3290

secondary

#BCAA4E

accent

#CB40E8

background

#F7F6FB

surface

#EDEBF6

border

#C8C6D0

text

#080611

muted

#7B7A80

Preview Lab

Preview with #1F3290

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

Preview Lab → · Contrast checker → · Palette generator →