#1E3773#1E3773

#1E3773 is a dark, moderate blue. Relative luminance 0.042; OKLCH L 35.3% C 0.108 H 264.5°. Best body text is #FFFFFF at 11.36:1 contrast (WCAG AA passes).

Color values

HEX	#1E3773
RGB	rgb(30, 55, 115)
HSL	hsl(222, 59%, 28%)
HSV	hsv(222, 74%, 45%)
CMYK	cmyk(73.9%, 52.2%, 0%, 54.9%)
CIE-LAB	lab(24.47, 12.86, -37.44)
CIE-LCH	lch(24.47, 39.59, 288.95°)
OKLab	oklab(35.34% -0.0104 -0.1075)
OKLCH	oklch(35.34% 0.108 264.5)
XYZ	xyz(4.9950, 4.2457, 16.7726)
Luminance	0.0425 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1E3773 #735A1E

analogous

#1E6173 #1E3773 #2F1E73

triadic

#1E3773 #731E37 #37731E

tetradic

#1E3773 #731E61 #735A1E #1E732F

square

#1E3773 #731E61 #735A1E #1E732F

split-complementary

#1E3773 #732F1E #61731E

monochromatic

#060C18 #112042 #1E3773 #2B4EA4 #3F68CD

Accessibility & contrast

On white

11.36

#1E3773 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.85

#1E3773 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1E3773

11.36:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1E3773	#FFFFFF	#000000	##FFFFFF
##1E3773	1.00	11.36	1.85	11.36
#FFFFFF	11.36	1.00	21.00	1.00
#000000	1.85	21.00	1.00	21.00
##FFFFFF	11.36	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#143E75

Deuteranopia (green-blind)

#003672

Tritanopia (blue-blind)

#00454F

Achromatopsia (no color)

#3A3A3A

Design tokens & code

CSS

--color: #1e3773;
/* rgb */ color: rgb(30, 55, 115);
/* oklch */ color: oklch(35.3% 0.108 264.5);

Tailwind

colors: {
  custom: {
    50: '#666d9c',
    500: '#1e3773',
    950: '#000000',
  },
}

SCSS

$custom: #1e3773;
$custom-light: #666d9c;
$custom-dark: #000000;

JSON

{
  "hex": "#1e3773",
  "rgb": {
    "r": 30,
    "g": 55,
    "b": 115
  },
  "hsl": {
    "h": 222.353,
    "s": 58.621,
    "l": 28.431
  },
  "oklch": {
    "l": 0.35336,
    "c": 0.108,
    "h": 264.5
  },
  "luminance": 0.04246
}

Semantic roles & 50–950 ramp

primary

#1E3773

secondary

#A78A46

accent

#B446E2

background

#F6F6F9

surface

#EBEBF2

border

#C6C6CC

text

#06070E

muted

#7A7A7E

Preview Lab

Preview with #1E3773

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

Preview Lab → · Contrast checker → · Palette generator →