#1E188B#1E188B

#1E188B is a dark, vivid blue. Relative luminance 0.028; OKLCH L 32.2% C 0.177 H 272.5°. Best body text is #FFFFFF at 13.47:1 contrast (WCAG AA passes).

Color values

HEX	#1E188B
RGB	rgb(30, 24, 139)
HSL	hsl(243, 71%, 32%)
HSV	hsv(243, 83%, 55%)
CMYK	cmyk(78.4%, 82.7%, 0%, 45.5%)
CIE-LAB	lab(19.19, 41.94, -61.25)
CIE-LCH	lch(19.19, 74.23, 304.40°)
OKLab	oklab(32.18% 0.0076 -0.1772)
OKLCH	oklch(32.18% 0.177 272.5)
XYZ	xyz(5.5207, 2.7928, 24.6692)
Luminance	0.0279 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1E188B #858B18

analogous

#184C8B #1E188B #57188B

triadic

#1E188B #8B1E18 #188B1E

tetradic

#1E188B #8B184C #858B18 #188B57

square

#1E188B #8B184C #858B18 #188B57

split-complementary

#1E188B #8B5718 #4C8B18

monochromatic

#070623 #130F57 #1E188B #2921BF #483FDE

Accessibility & contrast

On white

13.47

#1E188B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.56

#1E188B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1E188B

13.47:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1E188B	#FFFFFF	#000000	##FFFFFF
##1E188B	1.00	13.47	1.56	13.47
#FFFFFF	13.47	1.00	21.00	1.00
#000000	1.56	21.00	1.00	21.00
##FFFFFF	13.47	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00348E

Deuteranopia (green-blind)

#002989

Tritanopia (blue-blind)

#003C52

Achromatopsia (no color)

#2F2F2F

Design tokens & code

CSS

--color: #1e188b;
/* rgb */ color: rgb(30, 24, 139);
/* oklch */ color: oklch(32.2% 0.177 272.5);

Tailwind

colors: {
  custom: {
    50: '#6f58ae',
    500: '#1e188b',
    950: '#000000',
  },
}

SCSS

$custom: #1e188b;
$custom-light: #6f58ae;
$custom-dark: #000000;

JSON

{
  "hex": "#1e188b",
  "rgb": {
    "r": 30,
    "g": 24,
    "b": 139
  },
  "hsl": {
    "h": 243.13,
    "s": 70.552,
    "l": 31.961
  },
  "oklch": {
    "l": 0.3218,
    "c": 0.17738,
    "h": 272.5
  },
  "luminance": 0.02793
}

Semantic roles & 50–950 ramp

primary

#1E188B

secondary

#B8BE40

accent

#ED3AE4

background

#F7F5FA

surface

#EDE9F5

border

#C8C5CF

text

#090310

muted

#7B787F

Preview Lab

Preview with #1E188B

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

Preview Lab → · Contrast checker → · Palette generator →