#1A3083#1A3083

#1A3083 is a dark, vivid blue. Relative luminance 0.040; OKLCH L 35.0% C 0.142 H 267.1°. Best body text is #FFFFFF at 11.70:1 contrast (WCAG AA passes).

Color values

HEX	#1A3083
RGB	rgb(26, 48, 131)
HSL	hsl(227, 67%, 31%)
HSV	hsv(227, 80%, 51%)
CMYK	cmyk(80.2%, 63.4%, 0%, 48.6%)
CIE-LAB	lab(23.58, 23.72, -49.02)
CIE-LCH	lch(23.58, 54.45, 295.82°)
OKLab	oklab(35.03% -0.0073 -0.1417)
OKLCH	oklch(35.03% 0.142 267.1)
XYZ	xyz(5.5783, 3.9716, 21.9409)
Luminance	0.0397 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1A3083 #836D1A

analogous

#1A6483 #1A3083 #391A83

triadic

#1A3083 #831A30 #30831A

tetradic

#1A3083 #831A64 #836D1A #1A8339

square

#1A3083 #831A64 #836D1A #1A8339

split-complementary

#1A3083 #83391A #64831A

monochromatic

#060B1D #101D50 #1A3083 #2443B6 #3F5FD9

Accessibility & contrast

On white

11.70

#1A3083 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.79

#1A3083 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1A3083

11.70:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1A3083	#FFFFFF	#000000	##FFFFFF
##1A3083	1.00	11.70	1.79	11.70
#FFFFFF	11.70	1.00	21.00	1.00
#000000	1.79	21.00	1.00	21.00
##FFFFFF	11.70	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003D86

Deuteranopia (green-blind)

#003381

Tritanopia (blue-blind)

#004554

Achromatopsia (no color)

#383838

Design tokens & code

CSS

--color: #1a3083;
/* rgb */ color: rgb(26, 48, 131);
/* oklch */ color: oklch(35.0% 0.142 267.1);

Tailwind

colors: {
  custom: {
    50: '#6968a8',
    500: '#1a3083',
    950: '#000000',
  },
}

SCSS

$custom: #1a3083;
$custom-light: #6968a8;
$custom-dark: #000000;

JSON

{
  "hex": "#1a3083",
  "rgb": {
    "r": 26,
    "g": 48,
    "b": 131
  },
  "hsl": {
    "h": 227.429,
    "s": 66.879,
    "l": 30.784
  },
  "oklch": {
    "l": 0.35025,
    "c": 0.14192,
    "h": 267.1
  },
  "luminance": 0.03972
}

Semantic roles & 50–950 ramp

primary

#1A3083

secondary

#B79E42

accent

#C63EEA

background

#F6F6FA

surface

#ECEBF4

border

#C7C6CE

text

#070610

muted

#7A7A7F

Preview Lab

Preview with #1A3083

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

Preview Lab → · Contrast checker → · Palette generator →