#1E378F#1E378F

#1E378F is a dark, vivid blue. Relative luminance 0.050; OKLCH L 37.7% C 0.149 H 266.8°. Best body text is #FFFFFF at 10.51:1 contrast (WCAG AA passes).

Color values

HEX	#1E378F
RGB	rgb(30, 55, 143)
HSL	hsl(227, 65%, 34%)
HSV	hsv(227, 79%, 56%)
CMYK	cmyk(79%, 61.5%, 0%, 43.9%)
CIE-LAB	lab(26.71, 24.07, -51.37)
CIE-LCH	lch(26.71, 56.72, 295.10°)
OKLab	oklab(37.73% -0.0084 -0.1484)
OKLCH	oklch(37.73% 0.149 266.8)
XYZ	xyz(6.8578, 4.9908, 26.5832)
Luminance	0.0499 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1E378F #8F761E

analogous

#1E708F #1E378F #3E1E8F

triadic

#1E378F #8F1E37 #378F1E

tetradic

#1E378F #8F1E70 #8F761E #1E8F3E

square

#1E378F #8F1E70 #8F761E #1E8F3E

split-complementary

#1E378F #8F3E1E #708F1E

monochromatic

#09102A #13245C #1E378F #294AC2 #4E6DDA

Accessibility & contrast

On white

10.51

#1E378F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.00

#1E378F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1E378F

10.51:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1E378F	#FFFFFF	#000000	##FFFFFF
##1E378F	1.00	10.51	2.00	10.51
#FFFFFF	10.51	1.00	21.00	1.00
#000000	2.00	21.00	1.00	21.00
##FFFFFF	10.51	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004592

Deuteranopia (green-blind)

#003A8D

Tritanopia (blue-blind)

#004D5D

Achromatopsia (no color)

#3F3F3F

Design tokens & code

CSS

--color: #1e378f;
/* rgb */ color: rgb(30, 55, 143);
/* oklch */ color: oklch(37.7% 0.149 266.8);

Tailwind

colors: {
  custom: {
    50: '#6d6db1',
    500: '#1e378f',
    950: '#000000',
  },
}

SCSS

$custom: #1e378f;
$custom-light: #6d6db1;
$custom-dark: #000000;

JSON

{
  "hex": "#1e378f",
  "rgb": {
    "r": 30,
    "g": 55,
    "b": 143
  },
  "hsl": {
    "h": 226.726,
    "s": 65.318,
    "l": 33.922
  },
  "oklch": {
    "l": 0.37729,
    "c": 0.14868,
    "h": 266.8
  },
  "luminance": 0.04992
}

Semantic roles & 50–950 ramp

primary

#1E378F

secondary

#BCA44C

accent

#C340E8

background

#F7F6FB

surface

#EDEBF6

border

#C8C6D0

text

#080711

muted

#7B7A80

Preview Lab

Preview with #1E378F

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

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