#1E288A#1E288A

#1E288A is a dark, vivid blue. Relative luminance 0.036; OKLCH L 34.4% C 0.160 H 270.4°. Best body text is #FFFFFF at 12.17:1 contrast (WCAG AA passes).

Color values

HEX	#1E288A
RGB	rgb(30, 40, 138)
HSL	hsl(234, 64%, 33%)
HSV	hsv(234, 78%, 54%)
CMYK	cmyk(78.3%, 71%, 0%, 45.9%)
CIE-LAB	lab(22.40, 32.23, -55.32)
CIE-LCH	lch(22.40, 64.03, 300.22°)
OKLab	oklab(34.42% 0.001 -0.1601)
OKLCH	oklch(34.42% 0.16 270.4)
XYZ	xyz(5.8801, 3.6279, 24.4302)
Luminance	0.0363 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1E288A #8A801E

analogous

#1E5E8A #1E288A #4A1E8A

triadic

#1E288A #8A1E28 #288A1E

tetradic

#1E288A #8A1E5E #8A801E #1E8A4A

square

#1E288A #8A1E5E #8A801E #1E8A4A

split-complementary

#1E288A #8A4A1E #5E8A1E

monochromatic

#080B25 #131958 #1E288A #2937BC #4B58D8

Accessibility & contrast

On white

12.17

#1E288A on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.73

#1E288A on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1E288A

12.17:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1E288A	#FFFFFF	#000000	##FFFFFF
##1E288A	1.00	12.17	1.73	12.17
#FFFFFF	12.17	1.00	21.00	1.00
#000000	1.73	21.00	1.00	21.00
##FFFFFF	12.17	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003B8D

Deuteranopia (green-blind)

#003088

Tritanopia (blue-blind)

#004356

Achromatopsia (no color)

#363636

Design tokens & code

CSS

--color: #1e288a;
/* rgb */ color: rgb(30, 40, 138);
/* oklch */ color: oklch(34.4% 0.160 270.4);

Tailwind

colors: {
  custom: {
    50: '#6d62ad',
    500: '#1e288a',
    950: '#000000',
  },
}

SCSS

$custom: #1e288a;
$custom-light: #6d62ad;
$custom-dark: #000000;

JSON

{
  "hex": "#1e288a",
  "rgb": {
    "r": 30,
    "g": 40,
    "b": 138
  },
  "hsl": {
    "h": 234.444,
    "s": 64.286,
    "l": 32.941
  },
  "oklch": {
    "l": 0.34422,
    "c": 0.16014,
    "h": 270.4
  },
  "luminance": 0.03629
}

Semantic roles & 50–950 ramp

primary

#1E288A

secondary

#BAB04A

accent

#D841E7

background

#F7F5FA

surface

#EDEAF4

border

#C8C6CE

text

#080510

muted

#7B797F

Preview Lab

Preview with #1E288A

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

Preview Lab → · Contrast checker → · Palette generator →