#1E3589#1E3589

#1E3589 is a dark, vivid blue. Relative luminance 0.046; OKLCH L 36.8% C 0.143 H 267.1°. Best body text is #FFFFFF at 10.91:1 contrast (WCAG AA passes).

Color values

HEX	#1E3589
RGB	rgb(30, 53, 137)
HSL	hsl(227, 64%, 33%)
HSV	hsv(227, 78%, 54%)
CMYK	cmyk(78.1%, 61.3%, 0%, 46.3%)
CIE-LAB	lab(25.65, 23.08, -49.38)
CIE-LCH	lch(25.65, 54.51, 295.05°)
OKLab	oklab(36.78% -0.0071 -0.1426)
OKLCH	oklch(36.78% 0.143 267.1)
XYZ	xyz(6.3223, 4.6277, 24.2221)
Luminance	0.0463 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1E3589 #89721E

analogous

#1E6A89 #1E3589 #3D1E89

triadic

#1E3589 #891E35 #35891E

tetradic

#1E3589 #891E6A #89721E #1E893D

square

#1E3589 #891E6A #89721E #1E893D

split-complementary

#1E3589 #893D1E #6A891E

monochromatic

#080E25 #132257 #1E3589 #2948BB #4A68D7

Accessibility & contrast

On white

10.91

#1E3589 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.93

#1E3589 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1E3589

10.91:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1E3589	#FFFFFF	#000000	##FFFFFF
##1E3589	1.00	10.91	1.93	10.91
#FFFFFF	10.91	1.00	21.00	1.00
#000000	1.93	21.00	1.00	21.00
##FFFFFF	10.91	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00428C

Deuteranopia (green-blind)

#003887

Tritanopia (blue-blind)

#004A59

Achromatopsia (no color)

#3D3D3D

Design tokens & code

CSS

--color: #1e3589;
/* rgb */ color: rgb(30, 53, 137);
/* oklch */ color: oklch(36.8% 0.143 267.1);

Tailwind

colors: {
  custom: {
    50: '#6c6bac',
    500: '#1e3589',
    950: '#000000',
  },
}

SCSS

$custom: #1e3589;
$custom-light: #6c6bac;
$custom-dark: #000000;

JSON

{
  "hex": "#1e3589",
  "rgb": {
    "r": 30,
    "g": 53,
    "b": 137
  },
  "hsl": {
    "h": 227.103,
    "s": 64.072,
    "l": 32.745
  },
  "oklch": {
    "l": 0.36777,
    "c": 0.14282,
    "h": 267.1
  },
  "luminance": 0.04628
}

Semantic roles & 50–950 ramp

primary

#1E3589

secondary

#BAA249

accent

#C341E7

background

#F6F6FA

surface

#ECEBF4

border

#C7C6CE

text

#080610

muted

#7A7A7F

Preview Lab

Preview with #1E3589

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

Preview Lab → · Contrast checker → · Palette generator →