#1E378A#1E378A

#1E378A is a dark, vivid blue. Relative luminance 0.048; OKLCH L 37.3% C 0.142 H 266.5°. Best body text is #FFFFFF at 10.67:1 contrast (WCAG AA passes).

Color values

HEX	#1E378A
RGB	rgb(30, 55, 138)
HSL	hsl(226, 64%, 33%)
HSV	hsv(226, 78%, 54%)
CMYK	cmyk(78.3%, 60.1%, 0%, 45.9%)
CIE-LAB	lab(26.28, 22.09, -48.97)
CIE-LCH	lch(26.28, 53.72, 294.28°)
OKLab	oklab(37.28% -0.0085 -0.1414)
OKLCH	oklch(37.28% 0.142 266.5)
XYZ	xyz(6.4874, 4.8427, 24.6326)
Luminance	0.0484 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1E378A #8A711E

analogous

#1E6D8A #1E378A #3B1E8A

triadic

#1E378A #8A1E37 #378A1E

tetradic

#1E378A #8A1E6D #8A711E #1E8A3B

square

#1E378A #8A1E6D #8A711E #1E8A3B

split-complementary

#1E378A #8A3B1E #6D8A1E

monochromatic

#080F25 #132358 #1E378A #294BBC #4B6BD8

Accessibility & contrast

On white

10.67

#1E378A on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.97

#1E378A on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1E378A

10.67:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1E378A	#FFFFFF	#000000	##FFFFFF
##1E378A	1.00	10.67	1.97	10.67
#FFFFFF	10.67	1.00	21.00	1.00
#000000	1.97	21.00	1.00	21.00
##FFFFFF	10.67	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00438D

Deuteranopia (green-blind)

#003988

Tritanopia (blue-blind)

#004C5B

Achromatopsia (no color)

#3E3E3E

Design tokens & code

CSS

--color: #1e378a;
/* rgb */ color: rgb(30, 55, 138);
/* oklch */ color: oklch(37.3% 0.142 266.5);

Tailwind

colors: {
  custom: {
    50: '#6c6dad',
    500: '#1e378a',
    950: '#000000',
  },
}

SCSS

$custom: #1e378a;
$custom-light: #6c6dad;
$custom-dark: #000000;

JSON

{
  "hex": "#1e378a",
  "rgb": {
    "r": 30,
    "g": 55,
    "b": 138
  },
  "hsl": {
    "h": 226.111,
    "s": 64.286,
    "l": 32.941
  },
  "oklch": {
    "l": 0.37278,
    "c": 0.14166,
    "h": 266.5
  },
  "luminance": 0.04843
}

Semantic roles & 50–950 ramp

primary

#1E378A

secondary

#BAA04A

accent

#C141E7

background

#F7F6FA

surface

#EDEBF4

border

#C8C6CE

text

#080710

muted

#7B7A7F

Preview Lab

Preview with #1E378A

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

Preview Lab → · Contrast checker → · Palette generator →