#1E3389#1E3389

#1E3389 is a dark, vivid blue. Relative luminance 0.044; OKLCH L 36.4% C 0.145 H 267.7°. Best body text is #FFFFFF at 11.11:1 contrast (WCAG AA passes).

Color values

HEX	#1E3389
RGB	rgb(30, 51, 137)
HSL	hsl(228, 64%, 33%)
HSV	hsv(228, 78%, 54%)
CMYK	cmyk(78.1%, 62.8%, 0%, 46.3%)
CIE-LAB	lab(25.10, 24.46, -50.27)
CIE-LCH	lch(25.10, 55.90, 295.95°)
OKLab	oklab(36.37% -0.0057 -0.1453)
OKLCH	oklch(36.37% 0.145 267.7)
XYZ	xyz(6.2330, 4.4491, 24.1923)
Luminance	0.0445 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1E3389 #89741E

analogous

#1E6989 #1E3389 #3E1E89

triadic

#1E3389 #891E33 #33891E

tetradic

#1E3389 #891E69 #89741E #1E893E

square

#1E3389 #891E69 #89741E #1E893E

split-complementary

#1E3389 #893E1E #69891E

monochromatic

#080E25 #132057 #1E3389 #2946BB #4A66D7

Accessibility & contrast

On white

11.11

#1E3389 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.89

#1E3389 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1E3389

11.11:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1E3389	#FFFFFF	#000000	##FFFFFF
##1E3389	1.00	11.11	1.89	11.11
#FFFFFF	11.11	1.00	21.00	1.00
#000000	1.89	21.00	1.00	21.00
##FFFFFF	11.11	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00418C

Deuteranopia (green-blind)

#003787

Tritanopia (blue-blind)

#004959

Achromatopsia (no color)

#3C3C3C

Design tokens & code

CSS

--color: #1e3389;
/* rgb */ color: rgb(30, 51, 137);
/* oklch */ color: oklch(36.4% 0.145 267.7);

Tailwind

colors: {
  custom: {
    50: '#6c6aac',
    500: '#1e3389',
    950: '#000000',
  },
}

SCSS

$custom: #1e3389;
$custom-light: #6c6aac;
$custom-dark: #000000;

JSON

{
  "hex": "#1e3389",
  "rgb": {
    "r": 30,
    "g": 51,
    "b": 137
  },
  "hsl": {
    "h": 228.224,
    "s": 64.072,
    "l": 32.745
  },
  "oklch": {
    "l": 0.36373,
    "c": 0.14538,
    "h": 267.7
  },
  "luminance": 0.0445
}

Semantic roles & 50–950 ramp

primary

#1E3389

secondary

#BAA449

accent

#C641E7

background

#F7F6FA

surface

#EDEBF4

border

#C8C6CE

text

#080610

muted

#7B7A7F

Preview Lab

Preview with #1E3389

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

Preview Lab → · Contrast checker → · Palette generator →