#1E40A8#1E40A8

#1E40A8 is a dark, vivid blue. Relative luminance 0.068; OKLCH L 41.8% C 0.172 H 265.4°. Best body text is #FFFFFF at 8.92:1 contrast (WCAG AA passes).

Color values

HEX	#1E40A8
RGB	rgb(30, 64, 168)
HSL	hsl(225, 70%, 39%)
HSV	hsv(225, 82%, 66%)
CMYK	cmyk(82.1%, 61.9%, 0%, 34.1%)
CIE-LAB	lab(31.27, 27.73, -59.11)
CIE-LCH	lch(31.27, 65.30, 295.13°)
OKLab	oklab(41.8% -0.0138 -0.171)
OKLCH	oklch(41.8% 0.172 265.4)
XYZ	xyz(9.4342, 6.7688, 37.8475)
Luminance	0.0677 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1E40A8 #A8861E

analogous

#1E85A8 #1E40A8 #411EA8

triadic

#1E40A8 #A81E40 #40A81E

tetradic

#1E40A8 #A81E85 #A8861E #1EA841

square

#1E40A8 #A81E85 #A8861E #1EA841

split-complementary

#1E40A8 #A8411E #85A81E

monochromatic

#0B1840 #152C74 #1E40A8 #2A55D9 #5E7FE2

Accessibility & contrast

On white

8.92

#1E40A8 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.35

#1E40A8 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1E40A8

8.92:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1E40A8	#FFFFFF	#000000	##FFFFFF
##1E40A8	1.00	8.92	2.35	8.92
#FFFFFF	8.92	1.00	21.00	1.00
#000000	2.35	21.00	1.00	21.00
##FFFFFF	8.92	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0050AB

Deuteranopia (green-blind)

#0043A6

Tritanopia (blue-blind)

#005B6E

Achromatopsia (no color)

#4A4A4A

Design tokens & code

CSS

--color: #1e40a8;
/* rgb */ color: rgb(30, 64, 168);
/* oklch */ color: oklch(41.8% 0.172 265.4);

Tailwind

colors: {
  custom: {
    50: '#7374c3',
    500: '#1e40a8',
    950: '#000000',
  },
}

SCSS

$custom: #1e40a8;
$custom-light: #7374c3;
$custom-dark: #000000;

JSON

{
  "hex": "#1e40a8",
  "rgb": {
    "r": 30,
    "g": 64,
    "b": 168
  },
  "hsl": {
    "h": 225.217,
    "s": 69.697,
    "l": 38.824
  },
  "oklch": {
    "l": 0.41798,
    "c": 0.17159,
    "h": 265.4
  },
  "luminance": 0.0677
}

Semantic roles & 50–950 ramp

primary

#1E40A8

secondary

#C7AC5B

accent

#C13BED

background

#F7F7FC

surface

#EEEDF8

border

#C9C8D1

text

#090813

muted

#7B7B82

Preview Lab

Preview with #1E40A8

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

Preview Lab → · Contrast checker → · Palette generator →