#1F3095#1F3095

#1F3095 is a dark, vivid blue. Relative luminance 0.046; OKLCH L 37.0% C 0.165 H 268.8°. Best body text is #FFFFFF at 10.97:1 contrast (WCAG AA passes).

Color values

HEX	#1F3095
RGB	rgb(31, 48, 149)
HSL	hsl(231, 66%, 35%)
HSV	hsv(231, 79%, 58%)
CMYK	cmyk(79.2%, 67.8%, 0%, 41.6%)
CIE-LAB	lab(25.49, 31.21, -57.06)
CIE-LCH	lch(25.49, 65.04, 298.68°)
OKLab	oklab(37.01% -0.0034 -0.1652)
OKLCH	oklch(37.01% 0.165 268.8)
XYZ	xyz(7.0450, 4.5743, 28.9396)
Luminance	0.0457 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1F3095 #95841F

analogous

#1F6B95 #1F3095 #491F95

triadic

#1F3095 #951F30 #30951F

tetradic

#1F3095 #951F6B #95841F #1F9549

square

#1F3095 #951F6B #95841F #1F9549

split-complementary

#1F3095 #95491F #6B951F

monochromatic

#0A0F30 #142062 #1F3095 #2A40C8 #5367DB

Accessibility & contrast

On white

10.97

#1F3095 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.92

#1F3095 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1F3095

10.97:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1F3095	#FFFFFF	#000000	##FFFFFF
##1F3095	1.00	10.97	1.92	10.97
#FFFFFF	10.97	1.00	21.00	1.00
#000000	1.92	21.00	1.00	21.00
##FFFFFF	10.97	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004298

Deuteranopia (green-blind)

#003793

Tritanopia (blue-blind)

#004B5E

Achromatopsia (no color)

#3C3C3C

Design tokens & code

CSS

--color: #1f3095;
/* rgb */ color: rgb(31, 48, 149);
/* oklch */ color: oklch(37.0% 0.165 268.8);

Tailwind

colors: {
  custom: {
    50: '#6f68b5',
    500: '#1f3095',
    950: '#000000',
  },
}

SCSS

$custom: #1f3095;
$custom-light: #6f68b5;
$custom-dark: #000000;

JSON

{
  "hex": "#1f3095",
  "rgb": {
    "r": 31,
    "g": 48,
    "b": 149
  },
  "hsl": {
    "h": 231.356,
    "s": 65.556,
    "l": 35.294
  },
  "oklch": {
    "l": 0.37008,
    "c": 0.1652,
    "h": 268.8
  },
  "luminance": 0.04575
}

Semantic roles & 50–950 ramp

primary

#1F3095

secondary

#BFAF51

accent

#D03FE9

background

#F7F6FB

surface

#EDEBF6

border

#C8C6D0

text

#090611

muted

#7B7A80

Preview Lab

Preview with #1F3095

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

Preview Lab → · Contrast checker → · Palette generator →