#1E3388#1E3388

#1E3388 is a dark, vivid blue. Relative luminance 0.044; OKLCH L 36.3% C 0.144 H 267.7°. Best body text is #FFFFFF at 11.15:1 contrast (WCAG AA passes).

Color values

HEX	#1E3388
RGB	rgb(30, 51, 136)
HSL	hsl(228, 64%, 33%)
HSV	hsv(228, 78%, 53%)
CMYK	cmyk(77.9%, 62.5%, 0%, 46.7%)
CIE-LAB	lab(25.02, 24.07, -49.79)
CIE-LCH	lch(25.02, 55.30, 295.80°)
OKLab	oklab(36.28% -0.0057 -0.1439)
OKLCH	oklch(36.28% 0.144 267.7)
XYZ	xyz(6.1616, 4.4206, 23.8163)
Luminance	0.0442 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1E3388 #88731E

analogous

#1E6888 #1E3388 #3E1E88

triadic

#1E3388 #881E33 #33881E

tetradic

#1E3388 #881E68 #88731E #1E883E

square

#1E3388 #881E68 #88731E #1E883E

split-complementary

#1E3388 #883E1E #68881E

monochromatic

#080D24 #132056 #1E3388 #2946BA #4965D7

Accessibility & contrast

On white

11.15

#1E3388 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.88

#1E3388 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1E3388

11.15:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1E3388	#FFFFFF	#000000	##FFFFFF
##1E3388	1.00	11.15	1.88	11.15
#FFFFFF	11.15	1.00	21.00	1.00
#000000	1.88	21.00	1.00	21.00
##FFFFFF	11.15	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00408B

Deuteranopia (green-blind)

#003786

Tritanopia (blue-blind)

#004958

Achromatopsia (no color)

#3B3B3B

Design tokens & code

CSS

--color: #1e3388;
/* rgb */ color: rgb(30, 51, 136);
/* oklch */ color: oklch(36.3% 0.144 267.7);

Tailwind

colors: {
  custom: {
    50: '#6b6aab',
    500: '#1e3388',
    950: '#000000',
  },
}

SCSS

$custom: #1e3388;
$custom-light: #6b6aab;
$custom-dark: #000000;

JSON

{
  "hex": "#1e3388",
  "rgb": {
    "r": 30,
    "g": 51,
    "b": 136
  },
  "hsl": {
    "h": 228.113,
    "s": 63.855,
    "l": 32.549
  },
  "oklch": {
    "l": 0.36281,
    "c": 0.14397,
    "h": 267.7
  },
  "luminance": 0.04421
}

Semantic roles & 50–950 ramp

primary

#1E3388

secondary

#B9A349

accent

#C641E7

background

#F6F6FA

surface

#ECEBF4

border

#C7C6CE

text

#080610

muted

#7A7A7F

Preview Lab

Preview with #1E3388

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

Preview Lab → · Contrast checker → · Palette generator →