#1A3D80#1A3D80

#1A3D80 is a dark, vivid blue. Relative luminance 0.051; OKLCH L 37.6% C 0.121 H 261.8°. Best body text is #FFFFFF at 10.38:1 contrast (WCAG AA passes).

Color values

HEX	#1A3D80
RGB	rgb(26, 61, 128)
HSL	hsl(219, 66%, 30%)
HSV	hsv(219, 80%, 50%)
CMYK	cmyk(79.7%, 52.3%, 0%, 49.8%)
CIE-LAB	lab(27.06, 13.37, -41.48)
CIE-LCH	lch(27.06, 43.58, 287.87°)
OKLab	oklab(37.57% -0.0173 -0.1193)
OKLCH	oklch(37.57% 0.121 261.8)
XYZ	xyz(5.9896, 5.1149, 21.0895)
Luminance	0.0512 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1A3D80 #805D1A

analogous

#1A7080 #1A3D80 #2A1A80

triadic

#1A3D80 #801A3D #3D801A

tetradic

#1A3D80 #801A70 #805D1A #1A802A

square

#1A3D80 #801A70 #805D1A #1A802A

split-complementary

#1A3D80 #802A1A #70801A

monochromatic

#050D1A #10254D #1A3D80 #2455B3 #3D72D8

Accessibility & contrast

On white

10.38

#1A3D80 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.02

#1A3D80 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1A3D80

10.38:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1A3D80	#FFFFFF	#000000	##FFFFFF
##1A3D80	1.00	10.38	2.02	10.38
#FFFFFF	10.38	1.00	21.00	1.00
#000000	2.02	21.00	1.00	21.00
##FFFFFF	10.38	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#134582

Deuteranopia (green-blind)

#003C7F

Tritanopia (blue-blind)

#004D58

Achromatopsia (no color)

#404040

Design tokens & code

CSS

--color: #1a3d80;
/* rgb */ color: rgb(26, 61, 128);
/* oklch */ color: oklch(37.6% 0.121 261.8);

Tailwind

colors: {
  custom: {
    50: '#6771a5',
    500: '#1a3d80',
    950: '#000000',
  },
}

SCSS

$custom: #1a3d80;
$custom-light: #6771a5;
$custom-dark: #000000;

JSON

{
  "hex": "#1a3d80",
  "rgb": {
    "r": 26,
    "g": 61,
    "b": 128
  },
  "hsl": {
    "h": 219.412,
    "s": 66.234,
    "l": 30.196
  },
  "oklch": {
    "l": 0.37571,
    "c": 0.12059,
    "h": 261.8
  },
  "luminance": 0.05116
}

Semantic roles & 50–950 ramp

primary

#1A3D80

secondary

#B48D42

accent

#AF3FE9

background

#F6F6FA

surface

#EBECF4

border

#C6C7CE

text

#07070F

muted

#7A7A7F

Preview Lab

Preview with #1A3D80

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

Preview Lab → · Contrast checker → · Palette generator →