#1A3A74#1A3A74

#1A3A74 is a dark, moderate blue. Relative luminance 0.045; OKLCH L 35.9% C 0.107 H 261.1°. Best body text is #FFFFFF at 11.04:1 contrast (WCAG AA passes).

Color values

HEX	#1A3A74
RGB	rgb(26, 58, 116)
HSL	hsl(219, 63%, 28%)
HSV	hsv(219, 78%, 45%)
CMYK	cmyk(77.6%, 50%, 0%, 54.5%)
CIE-LAB	lab(25.28, 10.54, -36.78)
CIE-LCH	lch(25.28, 38.26, 286.00°)
OKLab	oklab(35.93% -0.0164 -0.1056)
OKLCH	oklch(35.93% 0.107 261.1)
XYZ	xyz(5.0903, 4.5061, 17.1211)
Luminance	0.0451 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1A3A74 #74541A

analogous

#1A6774 #1A3A74 #271A74

triadic

#1A3A74 #741A3A #3A741A

tetradic

#1A3A74 #741A67 #74541A #1A7427

square

#1A3A74 #741A67 #74541A #1A7427

split-complementary

#1A3A74 #74271A #67741A

monochromatic

#060C19 #0F2142 #1A3A74 #2553A6 #366ED2

Accessibility & contrast

On white

11.04

#1A3A74 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.90

#1A3A74 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1A3A74

11.04:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1A3A74	#FFFFFF	#000000	##FFFFFF
##1A3A74	1.00	11.04	1.90	11.04
#FFFFFF	11.04	1.00	21.00	1.00
#000000	1.90	21.00	1.00	21.00
##FFFFFF	11.04	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#1A4076

Deuteranopia (green-blind)

#013873

Tritanopia (blue-blind)

#004851

Achromatopsia (no color)

#3C3C3C

Design tokens & code

CSS

--color: #1a3a74;
/* rgb */ color: rgb(26, 58, 116);
/* oklch */ color: oklch(35.9% 0.107 261.1);

Tailwind

colors: {
  custom: {
    50: '#646f9c',
    500: '#1a3a74',
    950: '#000000',
  },
}

SCSS

$custom: #1a3a74;
$custom-light: #646f9c;
$custom-dark: #000000;

JSON

{
  "hex": "#1a3a74",
  "rgb": {
    "r": 26,
    "g": 58,
    "b": 116
  },
  "hsl": {
    "h": 218.667,
    "s": 63.38,
    "l": 27.843
  },
  "oklch": {
    "l": 0.3593,
    "c": 0.10685,
    "h": 261.1
  },
  "luminance": 0.04507
}

Semantic roles & 50–950 ramp

primary

#1A3A74

secondary

#A98441

accent

#AC41E6

background

#F6F6F9

surface

#EBECF2

border

#C6C7CC

text

#06070E

muted

#7A7A7E

Preview Lab

Preview with #1A3A74

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

Preview Lab → · Contrast checker → · Palette generator →