#1A3C8F#1A3C8F

#1A3C8F is a dark, vivid blue. Relative luminance 0.054; OKLCH L 38.6% C 0.143 H 264.0°. Best body text is #FFFFFF at 10.06:1 contrast (WCAG AA passes).

Color values

HEX	#1A3C8F
RGB	rgb(26, 60, 143)
HSL	hsl(223, 69%, 33%)
HSV	hsv(223, 82%, 56%)
CMYK	cmyk(81.8%, 58%, 0%, 43.9%)
CIE-LAB	lab(27.94, 20.18, -49.37)
CIE-LCH	lch(27.94, 53.34, 292.23°)
OKLab	oklab(38.61% -0.015 -0.1426)
OKLCH	oklch(38.61% 0.143 264)
XYZ	xyz(6.9980, 5.4337, 26.6613)
Luminance	0.0543 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1A3C8F #8F6D1A

analogous

#1A768F #1A3C8F #321A8F

triadic

#1A3C8F #8F1A3C #3C8F1A

tetradic

#1A3C8F #8F1A76 #8F6D1A #1A8F32

square

#1A3C8F #8F1A76 #8F6D1A #1A8F32

split-complementary

#1A3C8F #8F321A #768F1A

monochromatic

#071127 #11265B #1A3C8F #2352C3 #4672DD

Accessibility & contrast

On white

10.06

#1A3C8F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.09

#1A3C8F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1A3C8F

10.06:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1A3C8F	#FFFFFF	#000000	##FFFFFF
##1A3C8F	1.00	10.06	2.09	10.06
#FFFFFF	10.06	1.00	21.00	1.00
#000000	2.09	21.00	1.00	21.00
##FFFFFF	10.06	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004892

Deuteranopia (green-blind)

#003D8D

Tritanopia (blue-blind)

#00515F

Achromatopsia (no color)

#424242

Design tokens & code

CSS

--color: #1a3c8f;
/* rgb */ color: rgb(26, 60, 143);
/* oklch */ color: oklch(38.6% 0.143 264.0);

Tailwind

colors: {
  custom: {
    50: '#6b71b0',
    500: '#1a3c8f',
    950: '#000000',
  },
}

SCSS

$custom: #1a3c8f;
$custom-light: #6b71b0;
$custom-dark: #000000;

JSON

{
  "hex": "#1a3c8f",
  "rgb": {
    "r": 26,
    "g": 60,
    "b": 143
  },
  "hsl": {
    "h": 222.564,
    "s": 69.231,
    "l": 33.137
  },
  "oklch": {
    "l": 0.38605,
    "c": 0.14336,
    "h": 264
  },
  "luminance": 0.05434
}

Semantic roles & 50–950 ramp

primary

#1A3C8F

secondary

#BF9C46

accent

#B93CEC

background

#F7F6FA

surface

#EDECF5

border

#C8C7CF

text

#080711

muted

#7B7A80

Preview Lab

Preview with #1A3C8F

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

Preview Lab → · Contrast checker → · Palette generator →