#1E3FA8#1E3FA8

#1E3FA8 is a dark, vivid blue. Relative luminance 0.067; OKLCH L 41.6% C 0.173 H 265.6°. Best body text is #FFFFFF at 9.01:1 contrast (WCAG AA passes).

Color values

HEX	#1E3FA8
RGB	rgb(30, 63, 168)
HSL	hsl(226, 70%, 39%)
HSV	hsv(226, 82%, 66%)
CMYK	cmyk(82.1%, 62.5%, 0%, 34.1%)
CIE-LAB	lab(31.01, 28.40, -59.54)
CIE-LCH	lch(31.01, 65.97, 295.50°)
OKLab	oklab(41.6% -0.0132 -0.1723)
OKLCH	oklch(41.6% 0.173 265.6)
XYZ	xyz(9.3783, 6.6571, 37.8289)
Luminance	0.0666 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1E3FA8 #A8871E

analogous

#1E84A8 #1E3FA8 #421EA8

triadic

#1E3FA8 #A81E3F #3FA81E

tetradic

#1E3FA8 #A81E84 #A8871E #1EA842

square

#1E3FA8 #A81E84 #A8871E #1EA842

split-complementary

#1E3FA8 #A8421E #84A81E

monochromatic

#0B1840 #152C74 #1E3FA8 #2A54D9 #5E7EE2

Accessibility & contrast

On white

9.01

#1E3FA8 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.33

#1E3FA8 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1E3FA8

9.01:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1E3FA8	#FFFFFF	#000000	##FFFFFF
##1E3FA8	1.00	9.01	2.33	9.01
#FFFFFF	9.01	1.00	21.00	1.00
#000000	2.33	21.00	1.00	21.00
##FFFFFF	9.01	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0050AB

Deuteranopia (green-blind)

#0043A6

Tritanopia (blue-blind)

#005A6D

Achromatopsia (no color)

#494949

Design tokens & code

CSS

--color: #1e3fa8;
/* rgb */ color: rgb(30, 63, 168);
/* oklch */ color: oklch(41.6% 0.173 265.6);

Tailwind

colors: {
  custom: {
    50: '#7373c3',
    500: '#1e3fa8',
    950: '#000000',
  },
}

SCSS

$custom: #1e3fa8;
$custom-light: #7373c3;
$custom-dark: #000000;

JSON

{
  "hex": "#1e3fa8",
  "rgb": {
    "r": 30,
    "g": 63,
    "b": 168
  },
  "hsl": {
    "h": 225.652,
    "s": 69.697,
    "l": 38.824
  },
  "oklch": {
    "l": 0.41604,
    "c": 0.1728,
    "h": 265.6
  },
  "luminance": 0.06658
}

Semantic roles & 50–950 ramp

primary

#1E3FA8

secondary

#C7AD5B

accent

#C23BED

background

#F7F7FC

surface

#EEEDF8

border

#C9C8D1

text

#090813

muted

#7B7B82

Preview Lab

Preview with #1E3FA8

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

Preview Lab → · Contrast checker → · Palette generator →