#1E3783#1E3783

#1E3783 is a dark, vivid blue. Relative luminance 0.046; OKLCH L 36.7% C 0.132 H 266.1°. Best body text is #FFFFFF at 10.88:1 contrast (WCAG AA passes).

Color values

HEX	#1E3783
RGB	rgb(30, 55, 131)
HSL	hsl(225, 63%, 32%)
HSV	hsv(225, 77%, 51%)
CMYK	cmyk(77.1%, 58%, 0%, 48.6%)
CIE-LAB	lab(25.70, 19.30, -45.55)
CIE-LCH	lch(25.70, 49.47, 292.96°)
OKLab	oklab(36.66% -0.0088 -0.1313)
OKLCH	oklch(36.66% 0.132 266.1)
XYZ	xyz(5.9969, 4.6464, 22.0491)
Luminance	0.0465 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1E3783 #836A1E

analogous

#1E6A83 #1E3783 #381E83

triadic

#1E3783 #831E37 #37831E

tetradic

#1E3783 #831E6A #836A1E #1E8338

square

#1E3783 #831E6A #836A1E #1E8338

split-complementary

#1E3783 #83381E #6A831E

monochromatic

#070D1F #132251 #1E3783 #294CB5 #476AD5

Accessibility & contrast

On white

10.88

#1E3783 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.93

#1E3783 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1E3783

10.88:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1E3783	#FFFFFF	#000000	##FFFFFF
##1E3783	1.00	10.88	1.93	10.88
#FFFFFF	10.88	1.00	21.00	1.00
#000000	1.93	21.00	1.00	21.00
##FFFFFF	10.88	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004286

Deuteranopia (green-blind)

#003882

Tritanopia (blue-blind)

#004A57

Achromatopsia (no color)

#3D3D3D

Design tokens & code

CSS

--color: #1e3783;
/* rgb */ color: rgb(30, 55, 131);
/* oklch */ color: oklch(36.7% 0.132 266.1);

Tailwind

colors: {
  custom: {
    50: '#6a6da8',
    500: '#1e3783',
    950: '#000000',
  },
}

SCSS

$custom: #1e3783;
$custom-light: #6a6da8;
$custom-dark: #000000;

JSON

{
  "hex": "#1e3783",
  "rgb": {
    "r": 30,
    "g": 55,
    "b": 131
  },
  "hsl": {
    "h": 225.149,
    "s": 62.733,
    "l": 31.569
  },
  "oklch": {
    "l": 0.36662,
    "c": 0.13165,
    "h": 266.1
  },
  "luminance": 0.04647
}

Semantic roles & 50–950 ramp

primary

#1E3783

secondary

#B69A47

accent

#BD42E6

background

#F6F6FA

surface

#ECEBF4

border

#C7C6CE

text

#070710

muted

#7A7A7F

Preview Lab

Preview with #1E3783

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

Preview Lab → · Contrast checker → · Palette generator →