#1E428B#1E428B

#1E428B is a dark, vivid blue. Relative luminance 0.060; OKLCH L 39.7% C 0.129 H 262.4°. Best body text is #FFFFFF at 9.51:1 contrast (WCAG AA passes).

Color values

HEX	#1E428B
RGB	rgb(30, 66, 139)
HSL	hsl(220, 64%, 33%)
HSV	hsv(220, 78%, 55%)
CMYK	cmyk(78.4%, 52.5%, 0%, 45.5%)
CIE-LAB	lab(29.50, 14.86, -44.36)
CIE-LCH	lch(29.50, 46.78, 288.52°)
OKLab	oklab(39.73% -0.017 -0.1277)
OKLCH	oklch(39.73% 0.129 262.4)
XYZ	xyz(7.1422, 6.0357, 25.2097)
Luminance	0.0604 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1E428B #8B671E

analogous

#1E788B #1E428B #301E8B

triadic

#1E428B #8B1E42 #428B1E

tetradic

#1E428B #8B1E78 #8B671E #1E8B30

square

#1E428B #8B1E78 #8B671E #1E8B30

split-complementary

#1E428B #8B301E #788B1E

monochromatic

#081226 #132A59 #1E428B #295ABD #4B7AD8

Accessibility & contrast

On white

9.51

#1E428B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.21

#1E428B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1E428B

9.51:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1E428B	#FFFFFF	#000000	##FFFFFF
##1E428B	1.00	9.51	2.21	9.51
#FFFFFF	9.51	1.00	21.00	1.00
#000000	2.21	21.00	1.00	21.00
##FFFFFF	9.51	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#134B8E

Deuteranopia (green-blind)

#00418A

Tritanopia (blue-blind)

#005460

Achromatopsia (no color)

#454545

Design tokens & code

CSS

--color: #1e428b;
/* rgb */ color: rgb(30, 66, 139);
/* oklch */ color: oklch(39.7% 0.129 262.4);

Tailwind

colors: {
  custom: {
    50: '#6b75ad',
    500: '#1e428b',
    950: '#000000',
  },
}

SCSS

$custom: #1e428b;
$custom-light: #6b75ad;
$custom-dark: #000000;

JSON

{
  "hex": "#1e428b",
  "rgb": {
    "r": 30,
    "g": 66,
    "b": 139
  },
  "hsl": {
    "h": 220.183,
    "s": 64.497,
    "l": 33.137
  },
  "oklch": {
    "l": 0.39734,
    "c": 0.12878,
    "h": 262.4
  },
  "luminance": 0.06037
}

Semantic roles & 50–950 ramp

primary

#1E428B

secondary

#BB954A

accent

#B040E7

background

#F6F7FA

surface

#ECEDF4

border

#C7C8CE

text

#080810

muted

#7A7B7F

Preview Lab

Preview with #1E428B

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

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