#1A3D9E#1A3D9E

#1A3D9E is a dark, vivid blue. Relative luminance 0.060; OKLCH L 40.2% C 0.163 H 264.7°. Best body text is #FFFFFF at 9.52:1 contrast (WCAG AA passes).

Color values

HEX	#1A3D9E
RGB	rgb(26, 61, 158)
HSL	hsl(224, 72%, 36%)
HSV	hsv(224, 84%, 62%)
CMYK	cmyk(83.5%, 61.4%, 0%, 38%)
CIE-LAB	lab(29.47, 25.50, -56.03)
CIE-LCH	lch(29.47, 61.56, 294.47°)
OKLab	oklab(40.15% -0.015 -0.1621)
OKLCH	oklch(40.15% 0.163 264.7)
XYZ	xyz(8.2641, 6.0247, 33.0685)
Luminance	0.0603 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1A3D9E #9E7B1A

analogous

#1A7F9E #1A3D9E #391A9E

triadic

#1A3D9E #9E1A3D #3D9E1A

tetradic

#1A3D9E #9E1A7F #9E7B1A #1A9E39

square

#1A3D9E #9E1A7F #9E7B1A #1A9E39

split-complementary

#1A3D9E #9E391A #7F9E1A

monochromatic

#091435 #112969 #1A3D9E #2351D3 #5077E2

Accessibility & contrast

On white

9.52

#1A3D9E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.21

#1A3D9E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1A3D9E

9.52:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1A3D9E	#FFFFFF	#000000	##FFFFFF
##1A3D9E	1.00	9.52	2.21	9.52
#FFFFFF	9.52	1.00	21.00	1.00
#000000	2.21	21.00	1.00	21.00
##FFFFFF	9.52	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004CA1

Deuteranopia (green-blind)

#00409C

Tritanopia (blue-blind)

#005667

Achromatopsia (no color)

#454545

Design tokens & code

CSS

--color: #1a3d9e;
/* rgb */ color: rgb(26, 61, 158);
/* oklch */ color: oklch(40.2% 0.163 264.7);

Tailwind

colors: {
  custom: {
    50: '#6f72bc',
    500: '#1a3d9e',
    950: '#000000',
  },
}

SCSS

$custom: #1a3d9e;
$custom-light: #6f72bc;
$custom-dark: #000000;

JSON

{
  "hex": "#1a3d9e",
  "rgb": {
    "r": 26,
    "g": 61,
    "b": 158
  },
  "hsl": {
    "h": 224.091,
    "s": 71.739,
    "l": 36.078
  },
  "oklch": {
    "l": 0.40151,
    "c": 0.1628,
    "h": 264.7
  },
  "luminance": 0.06026
}

Semantic roles & 50–950 ramp

primary

#1A3D9E

secondary

#C5A64F

accent

#BE39EE

background

#F7F6FB

surface

#EDECF6

border

#C8C7D0

text

#090712

muted

#7B7A81

Preview Lab

Preview with #1A3D9E

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

Preview Lab → · Contrast checker → · Palette generator →