#1A3E99#1A3E99

#1A3E99 is a dark, vivid blue. Relative luminance 0.060; OKLCH L 39.9% C 0.155 H 264.1°. Best body text is #FFFFFF at 9.58:1 contrast (WCAG AA passes).

Color values

HEX	#1A3E99
RGB	rgb(26, 62, 153)
HSL	hsl(223, 71%, 35%)
HSV	hsv(223, 83%, 60%)
CMYK	cmyk(83%, 59.5%, 0%, 40%)
CIE-LAB	lab(29.32, 22.82, -53.24)
CIE-LCH	lch(29.32, 57.93, 293.20°)
OKLab	oklab(39.9% -0.0158 -0.1539)
OKLCH	oklch(39.9% 0.155 264.1)
XYZ	xyz(7.8963, 5.9638, 30.8658)
Luminance	0.0597 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1A3E99 #99751A

analogous

#1A7E99 #1A3E99 #351A99

triadic

#1A3E99 #991A3E #3E991A

tetradic

#1A3E99 #991A7E #99751A #1A9935

square

#1A3E99 #991A7E #99751A #1A9935

split-complementary

#1A3E99 #99351A #7E991A

monochromatic

#081430 #112965 #1A3E99 #2353CD #4D77E1

Accessibility & contrast

On white

9.58

#1A3E99 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.19

#1A3E99 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1A3E99

9.58:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1A3E99	#FFFFFF	#000000	##FFFFFF
##1A3E99	1.00	9.58	2.19	9.58
#FFFFFF	9.58	1.00	21.00	1.00
#000000	2.19	21.00	1.00	21.00
##FFFFFF	9.58	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004B9C

Deuteranopia (green-blind)

#003F97

Tritanopia (blue-blind)

#005565

Achromatopsia (no color)

#454545

Design tokens & code

CSS

--color: #1a3e99;
/* rgb */ color: rgb(26, 62, 153);
/* oklch */ color: oklch(39.9% 0.155 264.1);

Tailwind

colors: {
  custom: {
    50: '#6e72b8',
    500: '#1a3e99',
    950: '#000000',
  },
}

SCSS

$custom: #1a3e99;
$custom-light: #6e72b8;
$custom-dark: #000000;

JSON

{
  "hex": "#1a3e99",
  "rgb": {
    "r": 26,
    "g": 62,
    "b": 153
  },
  "hsl": {
    "h": 222.992,
    "s": 70.95,
    "l": 35.098
  },
  "oklch": {
    "l": 0.39904,
    "c": 0.15472,
    "h": 264.1
  },
  "luminance": 0.05965
}

Semantic roles & 50–950 ramp

primary

#1A3E99

secondary

#C3A14C

accent

#BB3AEE

background

#F7F6FB

surface

#EDECF6

border

#C8C7D0

text

#080811

muted

#7B7B80

Preview Lab

Preview with #1A3E99

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

Preview Lab → · Contrast checker → · Palette generator →