#1A3184#1A3184

#1A3184 is a dark, vivid blue. Relative luminance 0.041; OKLCH L 35.3% C 0.142 H 266.8°. Best body text is #FFFFFF at 11.56:1 contrast (WCAG AA passes).

Color values

HEX	#1A3184
RGB	rgb(26, 49, 132)
HSL	hsl(227, 67%, 31%)
HSV	hsv(227, 80%, 52%)
CMYK	cmyk(80.3%, 62.9%, 0%, 48.2%)
CIE-LAB	lab(23.94, 23.42, -49.05)
CIE-LCH	lch(23.94, 54.36, 295.52°)
OKLab	oklab(35.32% -0.008 -0.1418)
OKLCH	oklch(35.32% 0.142 266.8)
XYZ	xyz(5.6877, 4.0815, 22.3134)
Luminance	0.0408 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1A3184 #846D1A

analogous

#1A6684 #1A3184 #381A84

triadic

#1A3184 #841A31 #31841A

tetradic

#1A3184 #841A66 #846D1A #1A8438

square

#1A3184 #841A66 #846D1A #1A8438

split-complementary

#1A3184 #84381A #66841A

monochromatic

#060B1E #101E51 #1A3184 #2444B7 #3F61D9

Accessibility & contrast

On white

11.56

#1A3184 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.82

#1A3184 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1A3184

11.56:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1A3184	#FFFFFF	#000000	##FFFFFF
##1A3184	1.00	11.56	1.82	11.56
#FFFFFF	11.56	1.00	21.00	1.00
#000000	1.82	21.00	1.00	21.00
##FFFFFF	11.56	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003E87

Deuteranopia (green-blind)

#003482

Tritanopia (blue-blind)

#004655

Achromatopsia (no color)

#393939

Design tokens & code

CSS

--color: #1a3184;
/* rgb */ color: rgb(26, 49, 132);
/* oklch */ color: oklch(35.3% 0.142 266.8);

Tailwind

colors: {
  custom: {
    50: '#6968a9',
    500: '#1a3184',
    950: '#000000',
  },
}

SCSS

$custom: #1a3184;
$custom-light: #6968a9;
$custom-dark: #000000;

JSON

{
  "hex": "#1a3184",
  "rgb": {
    "r": 26,
    "g": 49,
    "b": 132
  },
  "hsl": {
    "h": 226.981,
    "s": 67.089,
    "l": 30.98
  },
  "oklch": {
    "l": 0.35322,
    "c": 0.14204,
    "h": 266.8
  },
  "luminance": 0.04082
}

Semantic roles & 50–950 ramp

primary

#1A3184

secondary

#B89E42

accent

#C53EEA

background

#F6F6FA

surface

#ECEBF4

border

#C7C6CE

text

#070610

muted

#7A7A7F

Preview Lab

Preview with #1A3184

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

Preview Lab → · Contrast checker → · Palette generator →