#1A3E9A#1A3E9A

#1A3E9A is a dark, vivid blue. Relative luminance 0.060; OKLCH L 40.0% C 0.156 H 264.2°. Best body text is #FFFFFF at 9.55:1 contrast (WCAG AA passes).

Color values

HEX	#1A3E9A
RGB	rgb(26, 62, 154)
HSL	hsl(223, 71%, 35%)
HSV	hsv(223, 83%, 60%)
CMYK	cmyk(83.1%, 59.7%, 0%, 39.6%)
CIE-LAB	lab(29.40, 23.22, -53.71)
CIE-LCH	lch(29.40, 58.52, 293.38°)
OKLab	oklab(39.99% -0.0158 -0.1553)
OKLCH	oklch(39.99% 0.156 264.2)
XYZ	xyz(7.9793, 5.9970, 31.3026)
Luminance	0.0600 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1A3E9A #9A761A

analogous

#1A7E9A #1A3E9A #361A9A

triadic

#1A3E9A #9A1A3E #3E9A1A

tetradic

#1A3E9A #9A1A7E #9A761A #1A9A36

square

#1A3E9A #9A1A7E #9A761A #1A9A36

split-complementary

#1A3E9A #9A361A #7E9A1A

monochromatic

#081431 #112966 #1A3E9A #2353CE #4D77E1

Accessibility & contrast

On white

9.55

#1A3E9A on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.20

#1A3E9A on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1A3E9A

9.55:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1A3E9A	#FFFFFF	#000000	##FFFFFF
##1A3E9A	1.00	9.55	2.20	9.55
#FFFFFF	9.55	1.00	21.00	1.00
#000000	2.20	21.00	1.00	21.00
##FFFFFF	9.55	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004B9D

Deuteranopia (green-blind)

#004098

Tritanopia (blue-blind)

#005566

Achromatopsia (no color)

#454545

Design tokens & code

CSS

--color: #1a3e9a;
/* rgb */ color: rgb(26, 62, 154);
/* oklch */ color: oklch(40.0% 0.156 264.2);

Tailwind

colors: {
  custom: {
    50: '#6e72b9',
    500: '#1a3e9a',
    950: '#000000',
  },
}

SCSS

$custom: #1a3e9a;
$custom-light: #6e72b9;
$custom-dark: #000000;

JSON

{
  "hex": "#1a3e9a",
  "rgb": {
    "r": 26,
    "g": 62,
    "b": 154
  },
  "hsl": {
    "h": 223.125,
    "s": 71.111,
    "l": 35.294
  },
  "oklch": {
    "l": 0.39993,
    "c": 0.15609,
    "h": 264.2
  },
  "luminance": 0.05998
}

Semantic roles & 50–950 ramp

primary

#1A3E9A

secondary

#C3A24D

accent

#BB3AEE

background

#F7F6FB

surface

#EDECF6

border

#C8C7D0

text

#080811

muted

#7B7B80

Preview Lab

Preview with #1A3E9A

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

Preview Lab → · Contrast checker → · Palette generator →