#1A3671#1A3671

#1A3671 is a dark, moderate blue. Relative luminance 0.041; OKLCH L 34.8% C 0.108 H 262.9°. Best body text is #FFFFFF at 11.60:1 contrast (WCAG AA passes).

Color values

HEX	#1A3671
RGB	rgb(26, 54, 113)
HSL	hsl(221, 63%, 27%)
HSV	hsv(221, 77%, 44%)
CMYK	cmyk(77%, 52.2%, 0%, 55.7%)
CIE-LAB	lab(23.84, 12.14, -37.19)
CIE-LCH	lch(23.84, 39.12, 288.08°)
OKLab	oklab(34.76% -0.0132 -0.1069)
OKLCH	oklch(34.76% 0.108 262.9)
XYZ	xyz(4.7247, 4.0497, 16.1522)
Luminance	0.0405 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1A3671 #71551A

analogous

#1A6171 #1A3671 #2A1A71

triadic

#1A3671 #711A36 #36711A

tetradic

#1A3671 #711A61 #71551A #1A712A

square

#1A3671 #711A61 #71551A #1A712A

split-complementary

#1A3671 #712A1A #61711A

monochromatic

#060C19 #0F1E3F #1A3671 #254EA3 #3567D0

Accessibility & contrast

On white

11.60

#1A3671 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.81

#1A3671 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1A3671

11.60:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1A3671	#FFFFFF	#000000	##FFFFFF
##1A3671	1.00	11.60	1.81	11.60
#FFFFFF	11.60	1.00	21.00	1.00
#000000	1.81	21.00	1.00	21.00
##FFFFFF	11.60	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#133D73

Deuteranopia (green-blind)

#003570

Tritanopia (blue-blind)

#00444E

Achromatopsia (no color)

#393939

Design tokens & code

CSS

--color: #1a3671;
/* rgb */ color: rgb(26, 54, 113);
/* oklch */ color: oklch(34.8% 0.108 262.9);

Tailwind

colors: {
  custom: {
    50: '#646c9a',
    500: '#1a3671',
    950: '#000000',
  },
}

SCSS

$custom: #1a3671;
$custom-light: #646c9a;
$custom-dark: #000000;

JSON

{
  "hex": "#1a3671",
  "rgb": {
    "r": 26,
    "g": 54,
    "b": 113
  },
  "hsl": {
    "h": 220.69,
    "s": 62.59,
    "l": 27.255
  },
  "oklch": {
    "l": 0.34756,
    "c": 0.10769,
    "h": 262.9
  },
  "luminance": 0.0405
}

Semantic roles & 50–950 ramp

primary

#1A3671

secondary

#A68541

accent

#B142E6

background

#F6F6F9

surface

#EBEBF2

border

#C6C6CC

text

#06060E

muted

#7A7A7E

Preview Lab

Preview with #1A3671

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

Preview Lab → · Contrast checker → · Palette generator →