#1A3D8F#1A3D8F

#1A3D8F is a dark, vivid blue. Relative luminance 0.055; OKLCH L 38.8% C 0.142 H 263.6°. Best body text is #FFFFFF at 9.96:1 contrast (WCAG AA passes).

Color values

HEX	#1A3D8F
RGB	rgb(26, 61, 143)
HSL	hsl(222, 69%, 33%)
HSV	hsv(222, 82%, 56%)
CMYK	cmyk(81.8%, 57.3%, 0%, 43.9%)
CIE-LAB	lab(28.22, 19.49, -48.91)
CIE-LCH	lch(28.22, 52.65, 291.73°)
OKLab	oklab(38.82% -0.0157 -0.1412)
OKLCH	oklch(38.82% 0.142 263.6)
XYZ	xyz(7.0509, 5.5394, 26.6789)
Luminance	0.0554 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1A3D8F #8F6C1A

analogous

#1A778F #1A3D8F #311A8F

triadic

#1A3D8F #8F1A3D #3D8F1A

tetradic

#1A3D8F #8F1A77 #8F6C1A #1A8F31

square

#1A3D8F #8F1A77 #8F6C1A #1A8F31

split-complementary

#1A3D8F #8F311A #778F1A

monochromatic

#071127 #11275B #1A3D8F #2353C3 #4673DD

Accessibility & contrast

On white

9.96

#1A3D8F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.11

#1A3D8F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1A3D8F

9.96:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1A3D8F	#FFFFFF	#000000	##FFFFFF
##1A3D8F	1.00	9.96	2.11	9.96
#FFFFFF	9.96	1.00	21.00	1.00
#000000	2.11	21.00	1.00	21.00
##FFFFFF	9.96	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004892

Deuteranopia (green-blind)

#003D8D

Tritanopia (blue-blind)

#005160

Achromatopsia (no color)

#434343

Design tokens & code

CSS

--color: #1a3d8f;
/* rgb */ color: rgb(26, 61, 143);
/* oklch */ color: oklch(38.8% 0.142 263.6);

Tailwind

colors: {
  custom: {
    50: '#6b71b0',
    500: '#1a3d8f',
    950: '#000000',
  },
}

SCSS

$custom: #1a3d8f;
$custom-light: #6b71b0;
$custom-dark: #000000;

JSON

{
  "hex": "#1a3d8f",
  "rgb": {
    "r": 26,
    "g": 61,
    "b": 143
  },
  "hsl": {
    "h": 222.051,
    "s": 69.231,
    "l": 33.137
  },
  "oklch": {
    "l": 0.38818,
    "c": 0.14207,
    "h": 263.6
  },
  "luminance": 0.0554
}

Semantic roles & 50–950 ramp

primary

#1A3D8F

secondary

#BF9B46

accent

#B73CEC

background

#F7F6FA

surface

#EDECF5

border

#C8C7CF

text

#080711

muted

#7B7A80

Preview Lab

Preview with #1A3D8F

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

Preview Lab → · Contrast checker → · Palette generator →