#1E178F#1E178F

#1E178F is a dark, vivid blue. Relative luminance 0.029; OKLCH L 32.5% C 0.183 H 272.2°. Best body text is #FFFFFF at 13.34:1 contrast (WCAG AA passes).

Color values

HEX	#1E178F
RGB	rgb(30, 23, 143)
HSL	hsl(244, 72%, 33%)
HSV	hsv(244, 84%, 56%)
CMYK	cmyk(79%, 83.9%, 0%, 43.9%)
CIE-LAB	lab(19.52, 43.72, -63.20)
CIE-LCH	lch(19.52, 76.85, 304.67°)
OKLab	oklab(32.55% 0.0069 -0.1829)
OKLCH	oklch(32.55% 0.183 272.2)
XYZ	xyz(5.7981, 2.8713, 26.2299)
Luminance	0.0287 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1E178F #888F17

analogous

#174C8F #1E178F #5A178F

triadic

#1E178F #8F1E17 #178F1E

tetradic

#1E178F #8F174C #888F17 #178F5A

square

#1E178F #8F174C #888F17 #178F5A

split-complementary

#1E178F #8F5A17 #4C8F17

monochromatic

#080626 #130F5A #1E178F #291FC4 #4940E0

Accessibility & contrast

On white

13.34

#1E178F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.57

#1E178F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1E178F

13.34:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1E178F	#FFFFFF	#000000	##FFFFFF
##1E178F	1.00	13.34	1.57	13.34
#FFFFFF	13.34	1.00	21.00	1.00
#000000	1.57	21.00	1.00	21.00
##FFFFFF	13.34	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003592

Deuteranopia (green-blind)

#00298D

Tritanopia (blue-blind)

#003E54

Achromatopsia (no color)

#2F2F2F

Design tokens & code

CSS

--color: #1e178f;
/* rgb */ color: rgb(30, 23, 143);
/* oklch */ color: oklch(32.5% 0.183 272.2);

Tailwind

colors: {
  custom: {
    50: '#7058b1',
    500: '#1e178f',
    950: '#000000',
  },
}

SCSS

$custom: #1e178f;
$custom-light: #7058b1;
$custom-dark: #000000;

JSON

{
  "hex": "#1e178f",
  "rgb": {
    "r": 30,
    "g": 23,
    "b": 143
  },
  "hsl": {
    "h": 243.5,
    "s": 72.289,
    "l": 32.549
  },
  "oklch": {
    "l": 0.32549,
    "c": 0.183,
    "h": 272.2
  },
  "luminance": 0.02872
}

Semantic roles & 50–950 ramp

primary

#1E178F

secondary

#B9C141

accent

#EF39E4

background

#F7F5FB

surface

#EDE9F6

border

#C8C5D0

text

#090311

muted

#7B7880

Preview Lab

Preview with #1E178F

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

Preview Lab → · Contrast checker → · Palette generator →