#1E3799#1E3799

#1E3799 is a dark, vivid blue. Relative luminance 0.053; OKLCH L 38.7% C 0.162 H 267.0°. Best body text is #FFFFFF at 10.19:1 contrast (WCAG AA passes).

Color values

HEX	#1E3799
RGB	rgb(30, 55, 153)
HSL	hsl(228, 67%, 36%)
HSV	hsv(228, 80%, 60%)
CMYK	cmyk(80.4%, 64.1%, 0%, 40%)
CIE-LAB	lab(27.59, 27.97, -56.06)
CIE-LCH	lch(27.59, 62.65, 296.52°)
OKLab	oklab(38.66% -0.0084 -0.1622)
OKLCH	oklch(38.66% 0.162 267)
XYZ	xyz(7.6494, 5.3074, 30.7521)
Luminance	0.0531 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1E3799 #99801E

analogous

#1E7499 #1E3799 #421E99

triadic

#1E3799 #991E37 #37991E

tetradic

#1E3799 #991E74 #99801E #1E9942

square

#1E3799 #991E74 #99801E #1E9942

split-complementary

#1E3799 #99421E #74991E

monochromatic

#0A1233 #142566 #1E3799 #2849CC #5470DD

Accessibility & contrast

On white

10.19

#1E3799 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.06

#1E3799 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1E3799

10.19:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1E3799	#FFFFFF	#000000	##FFFFFF
##1E3799	1.00	10.19	2.06	10.19
#FFFFFF	10.19	1.00	21.00	1.00
#000000	2.06	21.00	1.00	21.00
##FFFFFF	10.19	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00479C

Deuteranopia (green-blind)

#003B97

Tritanopia (blue-blind)

#005162

Achromatopsia (no color)

#414141

Design tokens & code

CSS

--color: #1e3799;
/* rgb */ color: rgb(30, 55, 153);
/* oklch */ color: oklch(38.7% 0.162 267.0);

Tailwind

colors: {
  custom: {
    50: '#706db8',
    500: '#1e3799',
    950: '#000000',
  },
}

SCSS

$custom: #1e3799;
$custom-light: #706db8;
$custom-dark: #000000;

JSON

{
  "hex": "#1e3799",
  "rgb": {
    "r": 30,
    "g": 55,
    "b": 153
  },
  "hsl": {
    "h": 227.805,
    "s": 67.213,
    "l": 35.882
  },
  "oklch": {
    "l": 0.38659,
    "c": 0.16242,
    "h": 267
  },
  "luminance": 0.05308
}

Semantic roles & 50–950 ramp

primary

#1E3799

secondary

#C1AA52

accent

#C73EEA

background

#F7F6FB

surface

#EDEBF6

border

#C8C6D0

text

#090711

muted

#7B7A80

Preview Lab

Preview with #1E3799

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

Preview Lab → · Contrast checker → · Palette generator →