#1A3774#1A3774

#1A3774 is a dark, moderate blue. Relative luminance 0.042; OKLCH L 35.2% C 0.111 H 262.9°. Best body text is #FFFFFF at 11.40:1 contrast (WCAG AA passes).

Color values

HEX	#1A3774
RGB	rgb(26, 55, 116)
HSL	hsl(221, 63%, 28%)
HSV	hsv(221, 78%, 45%)
CMYK	cmyk(77.6%, 52.6%, 0%, 54.5%)
CIE-LAB	lab(24.36, 12.67, -38.26)
CIE-LCH	lch(24.36, 40.30, 288.32°)
OKLab	oklab(35.23% -0.0137 -0.11)
OKLCH	oklch(35.23% 0.111 262.9)
XYZ	xyz(4.9435, 4.2124, 17.0722)
Luminance	0.0421 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1A3774 #74571A

analogous

#1A6474 #1A3774 #2A1A74

triadic

#1A3774 #741A37 #37741A

tetradic

#1A3774 #741A64 #74571A #1A742A

square

#1A3774 #741A64 #74571A #1A742A

split-complementary

#1A3774 #742A1A #64741A

monochromatic

#060C19 #0F1F42 #1A3774 #254FA6 #3669D2

Accessibility & contrast

On white

11.40

#1A3774 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.84

#1A3774 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1A3774

11.40:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1A3774	#FFFFFF	#000000	##FFFFFF
##1A3774	1.00	11.40	1.84	11.40
#FFFFFF	11.40	1.00	21.00	1.00
#000000	1.84	21.00	1.00	21.00
##FFFFFF	11.40	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#123E76

Deuteranopia (green-blind)

#003673

Tritanopia (blue-blind)

#004650

Achromatopsia (no color)

#3A3A3A

Design tokens & code

CSS

--color: #1a3774;
/* rgb */ color: rgb(26, 55, 116);
/* oklch */ color: oklch(35.2% 0.111 262.9);

Tailwind

colors: {
  custom: {
    50: '#656d9c',
    500: '#1a3774',
    950: '#000000',
  },
}

SCSS

$custom: #1a3774;
$custom-light: #656d9c;
$custom-dark: #000000;

JSON

{
  "hex": "#1a3774",
  "rgb": {
    "r": 26,
    "g": 55,
    "b": 116
  },
  "hsl": {
    "h": 220.667,
    "s": 63.38,
    "l": 27.843
  },
  "oklch": {
    "l": 0.35229,
    "c": 0.11084,
    "h": 262.9
  },
  "luminance": 0.04213
}

Semantic roles & 50–950 ramp

primary

#1A3774

secondary

#A98741

accent

#B141E6

background

#F6F6F9

surface

#EBEBF2

border

#C6C6CC

text

#06070E

muted

#7A7A7E

Preview Lab

Preview with #1A3774

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

Preview Lab → · Contrast checker → · Palette generator →