#1A3D72#1A3D72

#1A3D72 is a dark, moderate blue. Relative luminance 0.048; OKLCH L 36.5% C 0.100 H 258.7°. Best body text is #FFFFFF at 10.74:1 contrast (WCAG AA passes).

Color values

HEX	#1A3D72
RGB	rgb(26, 61, 114)
HSL	hsl(216, 63%, 27%)
HSV	hsv(216, 77%, 45%)
CMYK	cmyk(77.2%, 46.5%, 0%, 55.3%)
CIE-LAB	lab(26.07, 7.62, -34.23)
CIE-LCH	lch(26.07, 35.07, 282.55°)
OKLab	oklab(36.5% -0.0197 -0.098)
OKLCH	oklch(36.5% 0.1 258.7)
XYZ	xyz(5.1309, 4.7714, 16.5669)
Luminance	0.0477 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1A3D72 #724F1A

analogous

#1A6972 #1A3D72 #231A72

triadic

#1A3D72 #721A3D #3D721A

tetradic

#1A3D72 #721A69 #724F1A #1A7223

square

#1A3D72 #721A69 #724F1A #1A7223

split-complementary

#1A3D72 #72231A #69721A

monochromatic

#060D19 #0F2240 #1A3D72 #2558A4 #3573D1

Accessibility & contrast

On white

10.74

#1A3D72 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.95

#1A3D72 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1A3D72

10.74:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1A3D72	#FFFFFF	#000000	##FFFFFF
##1A3D72	1.00	10.74	1.95	10.74
#FFFFFF	10.74	1.00	21.00	1.00
#000000	1.95	21.00	1.00	21.00
##FFFFFF	10.74	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#224274

Deuteranopia (green-blind)

#113A71

Tritanopia (blue-blind)

#004952

Achromatopsia (no color)

#3E3E3E

Design tokens & code

CSS

--color: #1a3d72;
/* rgb */ color: rgb(26, 61, 114);
/* oklch */ color: oklch(36.5% 0.100 258.7);

Tailwind

colors: {
  custom: {
    50: '#64729b',
    500: '#1a3d72',
    950: '#000000',
  },
}

SCSS

$custom: #1a3d72;
$custom-light: #64729b;
$custom-dark: #000000;

JSON

{
  "hex": "#1a3d72",
  "rgb": {
    "r": 26,
    "g": 61,
    "b": 114
  },
  "hsl": {
    "h": 216.136,
    "s": 62.857,
    "l": 27.451
  },
  "oklch": {
    "l": 0.36498,
    "c": 0.09997,
    "h": 258.7
  },
  "luminance": 0.04772
}

Semantic roles & 50–950 ramp

primary

#1A3D72

secondary

#A77E41

accent

#A542E6

background

#F6F6F9

surface

#EBECF2

border

#C6C7CC

text

#06070E

muted

#7A7A7E

Preview Lab

Preview with #1A3D72

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

Preview Lab → · Contrast checker → · Palette generator →