#1E3A9C#1E3A9C

#1E3A9C is a dark, vivid blue. Relative luminance 0.057; OKLCH L 39.5% C 0.163 H 266.4°. Best body text is #FFFFFF at 9.81:1 contrast (WCAG AA passes).

Color values

HEX	#1E3A9C
RGB	rgb(30, 58, 156)
HSL	hsl(227, 68%, 36%)
HSV	hsv(227, 81%, 61%)
CMYK	cmyk(80.8%, 62.8%, 0%, 38.8%)
CIE-LAB	lab(28.65, 27.11, -56.16)
CIE-LCH	lch(28.65, 62.37, 295.77°)
OKLab	oklab(39.52% -0.0103 -0.1625)
OKLCH	oklch(39.52% 0.163 266.4)
XYZ	xyz(8.0471, 5.7015, 32.1224)
Luminance	0.0570 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1E3A9C #9C801E

analogous

#1E799C #1E3A9C #411E9C

triadic

#1E3A9C #9C1E3A #3A9C1E

tetradic

#1E3A9C #9C1E79 #9C801E #1E9C41

square

#1E3A9C #9C1E79 #9C801E #1E9C41

split-complementary

#1E3A9C #9C411E #799C1E

monochromatic

#0A1435 #142769 #1E3A9C #284DCF #5674DE

Accessibility & contrast

On white

9.81

#1E3A9C on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.14

#1E3A9C on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1E3A9C

9.81:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1E3A9C	#FFFFFF	#000000	##FFFFFF
##1E3A9C	1.00	9.81	2.14	9.81
#FFFFFF	9.81	1.00	21.00	1.00
#000000	2.14	21.00	1.00	21.00
##FFFFFF	9.81	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004A9F

Deuteranopia (green-blind)

#003E9A

Tritanopia (blue-blind)

#005365

Achromatopsia (no color)

#444444

Design tokens & code

CSS

--color: #1e3a9c;
/* rgb */ color: rgb(30, 58, 156);
/* oklch */ color: oklch(39.5% 0.163 266.4);

Tailwind

colors: {
  custom: {
    50: '#706fba',
    500: '#1e3a9c',
    950: '#000000',
  },
}

SCSS

$custom: #1e3a9c;
$custom-light: #706fba;
$custom-dark: #000000;

JSON

{
  "hex": "#1e3a9c",
  "rgb": {
    "r": 30,
    "g": 58,
    "b": 156
  },
  "hsl": {
    "h": 226.667,
    "s": 67.742,
    "l": 36.471
  },
  "oklch": {
    "l": 0.39521,
    "c": 0.16279,
    "h": 266.4
  },
  "luminance": 0.05702
}

Semantic roles & 50–950 ramp

primary

#1E3A9C

secondary

#C2A954

accent

#C43DEB

background

#F7F6FB

surface

#EDECF6

border

#C8C7D0

text

#090712

muted

#7B7A81

Preview Lab

Preview with #1E3A9C

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

Preview Lab → · Contrast checker → · Palette generator →