#1A3775#1A3775

#1A3775 is a dark, moderate blue. Relative luminance 0.042; OKLCH L 35.3% C 0.112 H 263.1°. Best body text is #FFFFFF at 11.37:1 contrast (WCAG AA passes).

Color values

HEX	#1A3775
RGB	rgb(26, 55, 117)
HSL	hsl(221, 64%, 28%)
HSV	hsv(221, 78%, 46%)
CMYK	cmyk(77.8%, 53%, 0%, 54.1%)
CIE-LAB	lab(24.44, 13.08, -38.77)
CIE-LCH	lch(24.44, 40.92, 288.64°)
OKLab	oklab(35.31% -0.0136 -0.1115)
OKLCH	oklch(35.31% 0.112 263.1)
XYZ	xyz(5.0019, 4.2358, 17.3801)
Luminance	0.0424 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1A3775 #75581A

analogous

#1A6475 #1A3775 #2A1A75

triadic

#1A3775 #751A37 #37751A

tetradic

#1A3775 #751A64 #75581A #1A752A

square

#1A3775 #751A64 #75581A #1A752A

split-complementary

#1A3775 #752A1A #64751A

monochromatic

#060C19 #0F1F43 #1A3775 #254FA7 #3768D3

Accessibility & contrast

On white

11.37

#1A3775 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.85

#1A3775 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1A3775

11.37:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1A3775	#FFFFFF	#000000	##FFFFFF
##1A3775	1.00	11.37	1.85	11.37
#FFFFFF	11.37	1.00	21.00	1.00
#000000	1.85	21.00	1.00	21.00
##FFFFFF	11.37	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#103E77

Deuteranopia (green-blind)

#003674

Tritanopia (blue-blind)

#004650

Achromatopsia (no color)

#3A3A3A

Design tokens & code

CSS

--color: #1a3775;
/* rgb */ color: rgb(26, 55, 117);
/* oklch */ color: oklch(35.3% 0.112 263.1);

Tailwind

colors: {
  custom: {
    50: '#656d9d',
    500: '#1a3775',
    950: '#000000',
  },
}

SCSS

$custom: #1a3775;
$custom-light: #656d9d;
$custom-dark: #000000;

JSON

{
  "hex": "#1a3775",
  "rgb": {
    "r": 26,
    "g": 55,
    "b": 117
  },
  "hsl": {
    "h": 220.879,
    "s": 63.636,
    "l": 28.039
  },
  "oklch": {
    "l": 0.35309,
    "c": 0.11233,
    "h": 263.1
  },
  "luminance": 0.04236
}

Semantic roles & 50–950 ramp

primary

#1A3775

secondary

#AA8841

accent

#B241E7

background

#F6F6F9

surface

#EBEBF2

border

#C6C6CC

text

#06070E

muted

#7A7A7E

Preview Lab

Preview with #1A3775

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

Preview Lab → · Contrast checker → · Palette generator →