#1F3286#1F3286

#1F3286 is a dark, vivid blue. Relative luminance 0.043; OKLCH L 35.9% C 0.142 H 268.4°. Best body text is #FFFFFF at 11.30:1 contrast (WCAG AA passes).

Color values

HEX	#1F3286
RGB	rgb(31, 50, 134)
HSL	hsl(229, 62%, 32%)
HSV	hsv(229, 77%, 53%)
CMYK	cmyk(76.9%, 62.7%, 0%, 47.5%)
CIE-LAB	lab(24.62, 24.09, -49.19)
CIE-LCH	lch(24.62, 54.77, 296.09°)
OKLab	oklab(35.94% -0.004 -0.1421)
OKLCH	oklch(35.94% 0.142 268.4)
XYZ	xyz(6.0073, 4.2931, 23.0617)
Luminance	0.0429 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1F3286 #86731F

analogous

#1F6686 #1F3286 #401F86

triadic

#1F3286 #861F32 #32861F

tetradic

#1F3286 #861F66 #86731F #1F8640

square

#1F3286 #861F66 #86731F #1F8640

split-complementary

#1F3286 #86401F #66861F

monochromatic

#080D23 #141F54 #1F3286 #2A45B8 #4A64D5

Accessibility & contrast

On white

11.30

#1F3286 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.86

#1F3286 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1F3286

11.30:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1F3286	#FFFFFF	#000000	##FFFFFF
##1F3286	1.00	11.30	1.86	11.30
#FFFFFF	11.30	1.00	21.00	1.00
#000000	1.86	21.00	1.00	21.00
##FFFFFF	11.30	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003F89

Deuteranopia (green-blind)

#003684

Tritanopia (blue-blind)

#004757

Achromatopsia (no color)

#3A3A3A

Design tokens & code

CSS

--color: #1f3286;
/* rgb */ color: rgb(31, 50, 134);
/* oklch */ color: oklch(35.9% 0.142 268.4);

Tailwind

colors: {
  custom: {
    50: '#6b69aa',
    500: '#1f3286',
    950: '#000000',
  },
}

SCSS

$custom: #1f3286;
$custom-light: #6b69aa;
$custom-dark: #000000;

JSON

{
  "hex": "#1f3286",
  "rgb": {
    "r": 31,
    "g": 50,
    "b": 134
  },
  "hsl": {
    "h": 228.932,
    "s": 62.424,
    "l": 32.353
  },
  "oklch": {
    "l": 0.35944,
    "c": 0.14216,
    "h": 268.4
  },
  "luminance": 0.04294
}

Semantic roles & 50–950 ramp

primary

#1F3286

secondary

#B8A349

accent

#C742E5

background

#F6F6FA

surface

#ECEBF4

border

#C7C6CE

text

#080610

muted

#7A7A7F

Preview Lab

Preview with #1F3286

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

Preview Lab → · Contrast checker → · Palette generator →