#1E3689#1E3689

#1E3689 is a dark, vivid blue. Relative luminance 0.047; OKLCH L 37.0% C 0.142 H 266.8°. Best body text is #FFFFFF at 10.80:1 contrast (WCAG AA passes).

Color values

HEX	#1E3689
RGB	rgb(30, 54, 137)
HSL	hsl(227, 64%, 33%)
HSV	hsv(227, 78%, 54%)
CMYK	cmyk(78.1%, 60.6%, 0%, 46.3%)
CIE-LAB	lab(25.92, 22.39, -48.93)
CIE-LCH	lch(25.92, 53.81, 294.58°)
OKLab	oklab(36.98% -0.0078 -0.1413)
OKLCH	oklch(36.98% 0.142 266.8)
XYZ	xyz(6.3684, 4.7198, 24.2374)
Luminance	0.0472 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1E3689 #89711E

analogous

#1E6B89 #1E3689 #3B1E89

triadic

#1E3689 #891E36 #36891E

tetradic

#1E3689 #891E6B #89711E #1E893B

square

#1E3689 #891E6B #89711E #1E893B

split-complementary

#1E3689 #893B1E #6B891E

monochromatic

#080E25 #132257 #1E3689 #294ABB #4A6AD7

Accessibility & contrast

On white

10.80

#1E3689 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.94

#1E3689 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1E3689

10.80:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1E3689	#FFFFFF	#000000	##FFFFFF
##1E3689	1.00	10.80	1.94	10.80
#FFFFFF	10.80	1.00	21.00	1.00
#000000	1.94	21.00	1.00	21.00
##FFFFFF	10.80	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00438C

Deuteranopia (green-blind)

#003987

Tritanopia (blue-blind)

#004B5A

Achromatopsia (no color)

#3D3D3D

Design tokens & code

CSS

--color: #1e3689;
/* rgb */ color: rgb(30, 54, 137);
/* oklch */ color: oklch(37.0% 0.142 266.8);

Tailwind

colors: {
  custom: {
    50: '#6b6cac',
    500: '#1e3689',
    950: '#000000',
  },
}

SCSS

$custom: #1e3689;
$custom-light: #6b6cac;
$custom-dark: #000000;

JSON

{
  "hex": "#1e3689",
  "rgb": {
    "r": 30,
    "g": 54,
    "b": 137
  },
  "hsl": {
    "h": 226.542,
    "s": 64.072,
    "l": 32.745
  },
  "oklch": {
    "l": 0.36982,
    "c": 0.14153,
    "h": 266.8
  },
  "luminance": 0.0472
}

Semantic roles & 50–950 ramp

primary

#1E3689

secondary

#BAA049

accent

#C241E7

background

#F6F6FA

surface

#ECEBF4

border

#C7C6CE

text

#080710

muted

#7A7A7F

Preview Lab

Preview with #1E3689

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

Preview Lab → · Contrast checker → · Palette generator →