#1E3489#1E3489

#1E3489 is a dark, vivid blue. Relative luminance 0.045; OKLCH L 36.6% C 0.144 H 267.5°. Best body text is #FFFFFF at 11.01:1 contrast (WCAG AA passes).

Color values

HEX	#1E3489
RGB	rgb(30, 52, 137)
HSL	hsl(228, 64%, 33%)
HSV	hsv(228, 78%, 54%)
CMYK	cmyk(78.1%, 62%, 0%, 46.3%)
CIE-LAB	lab(25.37, 23.77, -49.82)
CIE-LCH	lch(25.37, 55.20, 295.50°)
OKLab	oklab(36.57% -0.0064 -0.144)
OKLCH	oklch(36.57% 0.144 267.5)
XYZ	xyz(6.2772, 4.5375, 24.2070)
Luminance	0.0454 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1E3489 #89731E

analogous

#1E6989 #1E3489 #3E1E89

triadic

#1E3489 #891E34 #34891E

tetradic

#1E3489 #891E69 #89731E #1E893E

square

#1E3489 #891E69 #89731E #1E893E

split-complementary

#1E3489 #893E1E #69891E

monochromatic

#080E25 #132157 #1E3489 #2947BB #4A67D7

Accessibility & contrast

On white

11.01

#1E3489 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.91

#1E3489 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1E3489

11.01:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1E3489	#FFFFFF	#000000	##FFFFFF
##1E3489	1.00	11.01	1.91	11.01
#FFFFFF	11.01	1.00	21.00	1.00
#000000	1.91	21.00	1.00	21.00
##FFFFFF	11.01	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00418C

Deuteranopia (green-blind)

#003787

Tritanopia (blue-blind)

#004A59

Achromatopsia (no color)

#3C3C3C

Design tokens & code

CSS

--color: #1e3489;
/* rgb */ color: rgb(30, 52, 137);
/* oklch */ color: oklch(36.6% 0.144 267.5);

Tailwind

colors: {
  custom: {
    50: '#6c6bac',
    500: '#1e3489',
    950: '#000000',
  },
}

SCSS

$custom: #1e3489;
$custom-light: #6c6bac;
$custom-dark: #000000;

JSON

{
  "hex": "#1e3489",
  "rgb": {
    "r": 30,
    "g": 52,
    "b": 137
  },
  "hsl": {
    "h": 227.664,
    "s": 64.072,
    "l": 32.745
  },
  "oklch": {
    "l": 0.36574,
    "c": 0.1441,
    "h": 267.5
  },
  "luminance": 0.04538
}

Semantic roles & 50–950 ramp

primary

#1E3489

secondary

#BAA349

accent

#C541E7

background

#F7F6FA

surface

#EDEBF4

border

#C8C6CE

text

#080610

muted

#7B7A7F

Preview Lab

Preview with #1E3489

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

Preview Lab → · Contrast checker → · Palette generator →