#1E178A#1E178A

#1E178A is a dark, vivid blue. Relative luminance 0.027; OKLCH L 31.9% C 0.177 H 272.6°. Best body text is #FFFFFF at 13.59:1 contrast (WCAG AA passes).

Color values

HEX	#1E178A
RGB	rgb(30, 23, 138)
HSL	hsl(244, 71%, 32%)
HSV	hsv(244, 83%, 54%)
CMYK	cmyk(78.3%, 83.3%, 0%, 45.9%)
CIE-LAB	lab(18.90, 42.12, -61.11)
CIE-LCH	lch(18.90, 74.22, 304.57°)
OKLab	oklab(31.94% 0.0082 -0.1768)
OKLCH	oklch(31.94% 0.177 272.6)
XYZ	xyz(5.4277, 2.7232, 24.2794)
Luminance	0.0272 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1E178A #838A17

analogous

#174A8A #1E178A #58178A

triadic

#1E178A #8A1E17 #178A1E

tetradic

#1E178A #8A174A #838A17 #178A58

square

#1E178A #8A174A #838A17 #178A58

split-complementary

#1E178A #8A5817 #4A8A17

monochromatic

#070621 #130E56 #1E178A #2920BE #473DDF

Accessibility & contrast

On white

13.59

#1E178A on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.54

#1E178A on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1E178A

13.59:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1E178A	#FFFFFF	#000000	##FFFFFF
##1E178A	1.00	13.59	1.54	13.59
#FFFFFF	13.59	1.00	21.00	1.00
#000000	1.54	21.00	1.00	21.00
##FFFFFF	13.59	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00338D

Deuteranopia (green-blind)

#002888

Tritanopia (blue-blind)

#003C51

Achromatopsia (no color)

#2E2E2E

Design tokens & code

CSS

--color: #1e178a;
/* rgb */ color: rgb(30, 23, 138);
/* oklch */ color: oklch(31.9% 0.177 272.6);

Tailwind

colors: {
  custom: {
    50: '#6f58ad',
    500: '#1e178a',
    950: '#000000',
  },
}

SCSS

$custom: #1e178a;
$custom-light: #6f58ad;
$custom-dark: #000000;

JSON

{
  "hex": "#1e178a",
  "rgb": {
    "r": 30,
    "g": 23,
    "b": 138
  },
  "hsl": {
    "h": 243.652,
    "s": 71.429,
    "l": 31.569
  },
  "oklch": {
    "l": 0.31939,
    "c": 0.17699,
    "h": 272.6
  },
  "luminance": 0.02724
}

Semantic roles & 50–950 ramp

primary

#1E178A

secondary

#B6BE3F

accent

#EE3AE3

background

#F7F5FA

surface

#EDE9F4

border

#C8C5CE

text

#090310

muted

#7B787F

Preview Lab

Preview with #1E178A

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

Preview Lab → · Contrast checker → · Palette generator →