#1A3B9D#1A3B9D

#1A3B9D is a dark, vivid blue. Relative luminance 0.058; OKLCH L 39.7% C 0.164 H 265.1°. Best body text is #FFFFFF at 9.74:1 contrast (WCAG AA passes).

Color values

HEX	#1A3B9D
RGB	rgb(26, 59, 157)
HSL	hsl(225, 72%, 36%)
HSV	hsv(225, 83%, 62%)
CMYK	cmyk(83.4%, 62.4%, 0%, 38.4%)
CIE-LAB	lab(28.85, 26.46, -56.44)
CIE-LCH	lch(28.85, 62.34, 295.12°)
OKLab	oklab(39.66% -0.0139 -0.1633)
OKLCH	oklch(39.66% 0.164 265.1)
XYZ	xyz(8.0736, 5.7809, 32.5821)
Luminance	0.0578 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1A3B9D #9D7C1A

analogous

#1A7C9D #1A3B9D #3A1A9D

triadic

#1A3B9D #9D1A3B #3B9D1A

tetradic

#1A3B9D #9D1A7C #9D7C1A #1A9D3A

square

#1A3B9D #9D1A7C #9D7C1A #1A9D3A

split-complementary

#1A3B9D #9D3A1A #7C9D1A

monochromatic

#091434 #112768 #1A3B9D #234FD2 #4F74E2

Accessibility & contrast

On white

9.74

#1A3B9D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.16

#1A3B9D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1A3B9D

9.74:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1A3B9D	#FFFFFF	#000000	##FFFFFF
##1A3B9D	1.00	9.74	2.16	9.74
#FFFFFF	9.74	1.00	21.00	1.00
#000000	2.16	21.00	1.00	21.00
##FFFFFF	9.74	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004AA0

Deuteranopia (green-blind)

#003E9B

Tritanopia (blue-blind)

#005466

Achromatopsia (no color)

#444444

Design tokens & code

CSS

--color: #1a3b9d;
/* rgb */ color: rgb(26, 59, 157);
/* oklch */ color: oklch(39.7% 0.164 265.1);

Tailwind

colors: {
  custom: {
    50: '#6f70bb',
    500: '#1a3b9d',
    950: '#000000',
  },
}

SCSS

$custom: #1a3b9d;
$custom-light: #6f70bb;
$custom-dark: #000000;

JSON

{
  "hex": "#1a3b9d",
  "rgb": {
    "r": 26,
    "g": 59,
    "b": 157
  },
  "hsl": {
    "h": 224.885,
    "s": 71.585,
    "l": 35.882
  },
  "oklch": {
    "l": 0.39661,
    "c": 0.16392,
    "h": 265.1
  },
  "luminance": 0.05782
}

Semantic roles & 50–950 ramp

primary

#1A3B9D

secondary

#C4A74E

accent

#C139EE

background

#F7F6FB

surface

#EDECF6

border

#C8C7D0

text

#090712

muted

#7B7A81

Preview Lab

Preview with #1A3B9D

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

Preview Lab → · Contrast checker → · Palette generator →