#1A3A9E#1A3A9E

#1A3A9E is a dark, vivid blue. Relative luminance 0.057; OKLCH L 39.6% C 0.167 H 265.4°. Best body text is #FFFFFF at 9.80:1 contrast (WCAG AA passes).

Color values

HEX	#1A3A9E
RGB	rgb(26, 58, 158)
HSL	hsl(225, 72%, 36%)
HSV	hsv(225, 84%, 62%)
CMYK	cmyk(83.5%, 63.3%, 0%, 38%)
CIE-LAB	lab(28.68, 27.53, -57.34)
CIE-LCH	lch(28.68, 63.60, 295.65°)
OKLab	oklab(39.56% -0.0133 -0.166)
OKLCH	oklch(39.56% 0.167 265.4)
XYZ	xyz(8.1084, 5.7134, 33.0166)
Luminance	0.0571 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1A3A9E #9E7E1A

analogous

#1A7C9E #1A3A9E #3C1A9E

triadic

#1A3A9E #9E1A3A #3A9E1A

tetradic

#1A3A9E #9E1A7C #9E7E1A #1A9E3C

square

#1A3A9E #9E1A7C #9E7E1A #1A9E3C

split-complementary

#1A3A9E #9E3C1A #7C9E1A

monochromatic

#091335 #112769 #1A3A9E #234DD3 #5074E2

Accessibility & contrast

On white

9.80

#1A3A9E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.14

#1A3A9E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1A3A9E

9.80:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1A3A9E	#FFFFFF	#000000	##FFFFFF
##1A3A9E	1.00	9.80	2.14	9.80
#FFFFFF	9.80	1.00	21.00	1.00
#000000	2.14	21.00	1.00	21.00
##FFFFFF	9.80	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004AA1

Deuteranopia (green-blind)

#003E9C

Tritanopia (blue-blind)

#005466

Achromatopsia (no color)

#444444

Design tokens & code

CSS

--color: #1a3a9e;
/* rgb */ color: rgb(26, 58, 158);
/* oklch */ color: oklch(39.6% 0.167 265.4);

Tailwind

colors: {
  custom: {
    50: '#706fbc',
    500: '#1a3a9e',
    950: '#000000',
  },
}

SCSS

$custom: #1a3a9e;
$custom-light: #706fbc;
$custom-dark: #000000;

JSON

{
  "hex": "#1a3a9e",
  "rgb": {
    "r": 26,
    "g": 58,
    "b": 158
  },
  "hsl": {
    "h": 225.455,
    "s": 71.739,
    "l": 36.078
  },
  "oklch": {
    "l": 0.39558,
    "c": 0.16651,
    "h": 265.4
  },
  "luminance": 0.05714
}

Semantic roles & 50–950 ramp

primary

#1A3A9E

secondary

#C5A84F

accent

#C339EE

background

#F7F6FB

surface

#EDECF6

border

#C8C7D0

text

#090712

muted

#7B7A81

Preview Lab

Preview with #1A3A9E

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

Preview Lab → · Contrast checker → · Palette generator →