#1F3285#1F3285

#1F3285 is a dark, vivid blue. Relative luminance 0.043; OKLCH L 35.9% C 0.141 H 268.4°. Best body text is #FFFFFF at 11.33:1 contrast (WCAG AA passes).

Color values

HEX	#1F3285
RGB	rgb(31, 50, 133)
HSL	hsl(229, 62%, 32%)
HSV	hsv(229, 77%, 52%)
CMYK	cmyk(76.7%, 62.4%, 0%, 47.8%)
CIE-LAB	lab(24.53, 23.70, -48.71)
CIE-LCH	lch(24.53, 54.16, 295.95°)
OKLab	oklab(35.85% -0.004 -0.1407)
OKLCH	oklch(35.85% 0.141 268.4)
XYZ	xyz(5.9378, 4.2653, 22.6961)
Luminance	0.0427 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1F3285 #85721F

analogous

#1F6585 #1F3285 #3F1F85

triadic

#1F3285 #851F32 #32851F

tetradic

#1F3285 #851F65 #85721F #1F853F

square

#1F3285 #851F65 #85721F #1F853F

split-complementary

#1F3285 #853F1F #65851F

monochromatic

#080D22 #131F53 #1F3285 #2B45B7 #4A64D5

Accessibility & contrast

On white

11.33

#1F3285 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.85

#1F3285 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1F3285

11.33:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1F3285	#FFFFFF	#000000	##FFFFFF
##1F3285	1.00	11.33	1.85	11.33
#FFFFFF	11.33	1.00	21.00	1.00
#000000	1.85	21.00	1.00	21.00
##FFFFFF	11.33	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003F88

Deuteranopia (green-blind)

#003683

Tritanopia (blue-blind)

#004756

Achromatopsia (no color)

#3A3A3A

Design tokens & code

CSS

--color: #1f3285;
/* rgb */ color: rgb(31, 50, 133);
/* oklch */ color: oklch(35.9% 0.141 268.4);

Tailwind

colors: {
  custom: {
    50: '#6b69a9',
    500: '#1f3285',
    950: '#000000',
  },
}

SCSS

$custom: #1f3285;
$custom-light: #6b69a9;
$custom-dark: #000000;

JSON

{
  "hex": "#1f3285",
  "rgb": {
    "r": 31,
    "g": 50,
    "b": 133
  },
  "hsl": {
    "h": 228.824,
    "s": 62.195,
    "l": 32.157
  },
  "oklch": {
    "l": 0.35851,
    "c": 0.14074,
    "h": 268.4
  },
  "luminance": 0.04266
}

Semantic roles & 50–950 ramp

primary

#1F3285

secondary

#B7A349

accent

#C743E5

background

#F6F6FA

surface

#ECEBF4

border

#C7C6CE

text

#080610

muted

#7A7A7F

Preview Lab

Preview with #1F3285

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

Preview Lab → · Contrast checker → · Palette generator →