#1A3B8D#1A3B8D

#1A3B8D is a dark, vivid blue. Relative luminance 0.053; OKLCH L 38.2% C 0.142 H 264.1°. Best body text is #FFFFFF at 10.22:1 contrast (WCAG AA passes).

Color values

HEX	#1A3B8D
RGB	rgb(26, 59, 141)
HSL	hsl(223, 69%, 33%)
HSV	hsv(223, 82%, 55%)
CMYK	cmyk(81.6%, 58.2%, 0%, 44.7%)
CIE-LAB	lab(27.49, 20.07, -48.86)
CIE-LCH	lch(27.49, 52.82, 292.33°)
OKLab	oklab(38.22% -0.0145 -0.1411)
OKLCH	oklch(38.22% 0.142 264.1)
XYZ	xyz(6.7960, 5.2698, 25.8531)
Luminance	0.0527 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1A3B8D #8D6C1A

analogous

#1A748D #1A3B8D #331A8D

triadic

#1A3B8D #8D1A3B #3B8D1A

tetradic

#1A3B8D #8D1A74 #8D6C1A #1A8D33

square

#1A3B8D #8D1A74 #8D6C1A #1A8D33

split-complementary

#1A3B8D #8D331A #748D1A

monochromatic

#071026 #102559 #1A3B8D #2451C1 #4570DD

Accessibility & contrast

On white

10.22

#1A3B8D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.05

#1A3B8D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1A3B8D

10.22:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1A3B8D	#FFFFFF	#000000	##FFFFFF
##1A3B8D	1.00	10.22	2.05	10.22
#FFFFFF	10.22	1.00	21.00	1.00
#000000	2.05	21.00	1.00	21.00
##FFFFFF	10.22	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004690

Deuteranopia (green-blind)

#003C8B

Tritanopia (blue-blind)

#00505E

Achromatopsia (no color)

#414141

Design tokens & code

CSS

--color: #1a3b8d;
/* rgb */ color: rgb(26, 59, 141);
/* oklch */ color: oklch(38.2% 0.142 264.1);

Tailwind

colors: {
  custom: {
    50: '#6b70af',
    500: '#1a3b8d',
    950: '#000000',
  },
}

SCSS

$custom: #1a3b8d;
$custom-light: #6b70af;
$custom-dark: #000000;

JSON

{
  "hex": "#1a3b8d",
  "rgb": {
    "r": 26,
    "g": 59,
    "b": 141
  },
  "hsl": {
    "h": 222.783,
    "s": 68.862,
    "l": 32.745
  },
  "oklch": {
    "l": 0.38217,
    "c": 0.14184,
    "h": 264.1
  },
  "luminance": 0.05271
}

Semantic roles & 50–950 ramp

primary

#1A3B8D

secondary

#BE9B45

accent

#B93CEC

background

#F6F6FA

surface

#ECECF5

border

#C7C7CF

text

#080710

muted

#7A7A7F

Preview Lab

Preview with #1A3B8D

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

Preview Lab → · Contrast checker → · Palette generator →