#1E3573#1E3573

#1E3573 is a dark, moderate blue. Relative luminance 0.041; OKLCH L 34.9% C 0.111 H 265.6°. Best body text is #FFFFFF at 11.59:1 contrast (WCAG AA passes).

Color values

HEX	#1E3573
RGB	rgb(30, 53, 115)
HSL	hsl(224, 59%, 28%)
HSV	hsv(224, 74%, 45%)
CMYK	cmyk(73.9%, 53.9%, 0%, 54.9%)
CIE-LAB	lab(23.87, 14.27, -38.41)
CIE-LCH	lch(23.87, 40.98, 290.39°)
OKLab	oklab(34.88% -0.0085 -0.1104)
OKLCH	oklch(34.88% 0.111 265.6)
XYZ	xyz(4.9020, 4.0595, 16.7416)
Luminance	0.0406 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1E3573 #735C1E

analogous

#1E5F73 #1E3573 #311E73

triadic

#1E3573 #731E35 #35731E

tetradic

#1E3573 #731E5F #735C1E #1E7331

square

#1E3573 #731E5F #735C1E #1E7331

split-complementary

#1E3573 #73311E #5F731E

monochromatic

#060B18 #111F42 #1E3573 #2B4BA4 #3F65CD

Accessibility & contrast

On white

11.59

#1E3573 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.81

#1E3573 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1E3573

11.59:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1E3573	#FFFFFF	#000000	##FFFFFF
##1E3573	1.00	11.59	1.81	11.59
#FFFFFF	11.59	1.00	21.00	1.00
#000000	1.81	21.00	1.00	21.00
##FFFFFF	11.59	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0E3D75

Deuteranopia (green-blind)

#003572

Tritanopia (blue-blind)

#00444E

Achromatopsia (no color)

#393939

Design tokens & code

CSS

--color: #1e3573;
/* rgb */ color: rgb(30, 53, 115);
/* oklch */ color: oklch(34.9% 0.111 265.6);

Tailwind

colors: {
  custom: {
    50: '#666b9c',
    500: '#1e3573',
    950: '#000000',
  },
}

SCSS

$custom: #1e3573;
$custom-light: #666b9c;
$custom-dark: #000000;

JSON

{
  "hex": "#1e3573",
  "rgb": {
    "r": 30,
    "g": 53,
    "b": 115
  },
  "hsl": {
    "h": 223.765,
    "s": 58.621,
    "l": 28.431
  },
  "oklch": {
    "l": 0.34879,
    "c": 0.11071,
    "h": 265.6
  },
  "luminance": 0.0406
}

Semantic roles & 50–950 ramp

primary

#1E3573

secondary

#A78D46

accent

#B846E2

background

#F6F6F9

surface

#EBEBF2

border

#C6C6CC

text

#06060E

muted

#7A7A7E

Preview Lab

Preview with #1E3573

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

Preview Lab → · Contrast checker → · Palette generator →