#1E3683#1E3683

#1E3683 is a dark, vivid blue. Relative luminance 0.046; OKLCH L 36.4% C 0.133 H 266.5°. Best body text is #FFFFFF at 10.99:1 contrast (WCAG AA passes).

Color values

HEX	#1E3683
RGB	rgb(30, 54, 131)
HSL	hsl(226, 63%, 32%)
HSV	hsv(226, 77%, 51%)
CMYK	cmyk(77.1%, 58.8%, 0%, 48.6%)
CIE-LAB	lab(25.42, 20.00, -46.01)
CIE-LCH	lch(25.42, 50.16, 293.49°)
OKLab	oklab(36.45% -0.008 -0.1327)
OKLCH	oklch(36.45% 0.133 266.5)
XYZ	xyz(5.9499, 4.5524, 22.0335)
Luminance	0.0455 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1E3683 #836B1E

analogous

#1E6983 #1E3683 #391E83

triadic

#1E3683 #831E36 #36831E

tetradic

#1E3683 #831E69 #836B1E #1E8339

square

#1E3683 #831E69 #836B1E #1E8339

split-complementary

#1E3683 #83391E #69831E

monochromatic

#070D1F #132151 #1E3683 #294BB5 #4768D5

Accessibility & contrast

On white

10.99

#1E3683 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.91

#1E3683 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1E3683

10.99:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1E3683	#FFFFFF	#000000	##FFFFFF
##1E3683	1.00	10.99	1.91	10.99
#FFFFFF	10.99	1.00	21.00	1.00
#000000	1.91	21.00	1.00	21.00
##FFFFFF	10.99	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004186

Deuteranopia (green-blind)

#003881

Tritanopia (blue-blind)

#004957

Achromatopsia (no color)

#3C3C3C

Design tokens & code

CSS

--color: #1e3683;
/* rgb */ color: rgb(30, 54, 131);
/* oklch */ color: oklch(36.4% 0.133 266.5);

Tailwind

colors: {
  custom: {
    50: '#6a6ca8',
    500: '#1e3683',
    950: '#000000',
  },
}

SCSS

$custom: #1e3683;
$custom-light: #6a6ca8;
$custom-dark: #000000;

JSON

{
  "hex": "#1e3683",
  "rgb": {
    "r": 30,
    "g": 54,
    "b": 131
  },
  "hsl": {
    "h": 225.743,
    "s": 62.733,
    "l": 31.569
  },
  "oklch": {
    "l": 0.36449,
    "c": 0.13296,
    "h": 266.5
  },
  "luminance": 0.04553
}

Semantic roles & 50–950 ramp

primary

#1E3683

secondary

#B69C47

accent

#BF42E6

background

#F6F6FA

surface

#ECEBF4

border

#C7C6CE

text

#070710

muted

#7A7A7F

Preview Lab

Preview with #1E3683

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

Preview Lab → · Contrast checker → · Palette generator →