#1E3383#1E3383

#1E3383 is a dark, vivid blue. Relative luminance 0.043; OKLCH L 35.8% C 0.137 H 267.6°. Best body text is #FFFFFF at 11.31:1 contrast (WCAG AA passes).

Color values

HEX	#1E3383
RGB	rgb(30, 51, 131)
HSL	hsl(228, 63%, 32%)
HSV	hsv(228, 77%, 51%)
CMYK	cmyk(77.1%, 61.1%, 0%, 48.6%)
CIE-LAB	lab(24.58, 22.09, -47.37)
CIE-LCH	lch(24.58, 52.27, 295.00°)
OKLab	oklab(35.82% -0.0058 -0.1368)
OKLCH	oklch(35.82% 0.137 267.6)
XYZ	xyz(5.8146, 4.2817, 21.9883)
Luminance	0.0428 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1E3383 #836E1E

analogous

#1E6683 #1E3383 #3C1E83

triadic

#1E3383 #831E33 #33831E

tetradic

#1E3383 #831E66 #836E1E #1E833C

square

#1E3383 #831E66 #836E1E #1E833C

split-complementary

#1E3383 #833C1E #66831E

monochromatic

#070C1F #132051 #1E3383 #2946B5 #4764D5

Accessibility & contrast

On white

11.31

#1E3383 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.86

#1E3383 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1E3383

11.31:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1E3383	#FFFFFF	#000000	##FFFFFF
##1E3383	1.00	11.31	1.86	11.31
#FFFFFF	11.31	1.00	21.00	1.00
#000000	1.86	21.00	1.00	21.00
##FFFFFF	11.31	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003F86

Deuteranopia (green-blind)

#003681

Tritanopia (blue-blind)

#004755

Achromatopsia (no color)

#3A3A3A

Design tokens & code

CSS

--color: #1e3383;
/* rgb */ color: rgb(30, 51, 131);
/* oklch */ color: oklch(35.8% 0.137 267.6);

Tailwind

colors: {
  custom: {
    50: '#6a6aa8',
    500: '#1e3383',
    950: '#000000',
  },
}

SCSS

$custom: #1e3383;
$custom-light: #6a6aa8;
$custom-dark: #000000;

JSON

{
  "hex": "#1e3383",
  "rgb": {
    "r": 30,
    "g": 51,
    "b": 131
  },
  "hsl": {
    "h": 227.525,
    "s": 62.733,
    "l": 31.569
  },
  "oklch": {
    "l": 0.35823,
    "c": 0.13689,
    "h": 267.6
  },
  "luminance": 0.04282
}

Semantic roles & 50–950 ramp

primary

#1E3383

secondary

#B69F47

accent

#C442E6

background

#F6F6FA

surface

#ECEBF4

border

#C7C6CE

text

#070610

muted

#7A7A7F

Preview Lab

Preview with #1E3383

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

Preview Lab → · Contrast checker → · Palette generator →