#1A40A1#1A40A1

#1A40A1 is a dark, vivid blue. Relative luminance 0.065; OKLCH L 41.0% C 0.163 H 264.1°. Best body text is #FFFFFF at 9.16:1 contrast (WCAG AA passes).

Color values

HEX	#1A40A1
RGB	rgb(26, 64, 161)
HSL	hsl(223, 72%, 37%)
HSV	hsv(223, 84%, 63%)
CMYK	cmyk(83.9%, 60.2%, 0%, 36.9%)
CIE-LAB	lab(30.54, 24.64, -56.10)
CIE-LCH	lch(30.54, 61.28, 293.71°)
OKLab	oklab(41.03% -0.0167 -0.1623)
OKLCH	oklch(41.03% 0.163 264.1)
XYZ	xyz(8.6901, 6.4586, 34.4999)
Luminance	0.0646 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1A40A1 #A17B1A

analogous

#1A84A1 #1A40A1 #371AA1

triadic

#1A40A1 #A11A40 #40A11A

tetradic

#1A40A1 #A11A84 #A17B1A #1AA137

square

#1A40A1 #A11A84 #A17B1A #1AA137

split-complementary

#1A40A1 #A1371A #84A11A

monochromatic

#091638 #112B6C #1A40A1 #2355D6 #527BE3

Accessibility & contrast

On white

9.16

#1A40A1 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.29

#1A40A1 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1A40A1

9.16:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1A40A1	#FFFFFF	#000000	##FFFFFF
##1A40A1	1.00	9.16	2.29	9.16
#FFFFFF	9.16	1.00	21.00	1.00
#000000	2.29	21.00	1.00	21.00
##FFFFFF	9.16	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004EA4

Deuteranopia (green-blind)

#00429F

Tritanopia (blue-blind)

#00596A

Achromatopsia (no color)

#484848

Design tokens & code

CSS

--color: #1a40a1;
/* rgb */ color: rgb(26, 64, 161);
/* oklch */ color: oklch(41.0% 0.163 264.1);

Tailwind

colors: {
  custom: {
    50: '#7074be',
    500: '#1a40a1',
    950: '#000000',
  },
}

SCSS

$custom: #1a40a1;
$custom-light: #7074be;
$custom-dark: #000000;

JSON

{
  "hex": "#1a40a1",
  "rgb": {
    "r": 26,
    "g": 64,
    "b": 161
  },
  "hsl": {
    "h": 223.111,
    "s": 72.193,
    "l": 36.667
  },
  "oklch": {
    "l": 0.41027,
    "c": 0.16313,
    "h": 264.1
  },
  "luminance": 0.0646
}

Semantic roles & 50–950 ramp

primary

#1A40A1

secondary

#C6A551

accent

#BC39EF

background

#F7F7FB

surface

#EDEDF7

border

#C8C8D0

text

#090812

muted

#7B7B81

Preview Lab

Preview with #1A40A1

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

Preview Lab → · Contrast checker → · Palette generator →