#1A3D75#1A3D75

#1A3D75 is a dark, moderate blue. Relative luminance 0.048; OKLCH L 36.7% C 0.104 H 259.5°. Best body text is #FFFFFF at 10.67:1 contrast (WCAG AA passes).

Color values

HEX	#1A3D75
RGB	rgb(26, 61, 117)
HSL	hsl(217, 64%, 28%)
HSV	hsv(217, 78%, 46%)
CMYK	cmyk(77.8%, 47.9%, 0%, 54.1%)
CIE-LAB	lab(26.28, 8.85, -35.81)
CIE-LCH	lch(26.28, 36.89, 283.88°)
OKLab	oklab(36.72% -0.0191 -0.1027)
OKLCH	oklch(36.72% 0.104 259.5)
XYZ	xyz(5.3045, 4.8409, 17.4810)
Luminance	0.0484 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1A3D75 #75521A

analogous

#1A6A75 #1A3D75 #241A75

triadic

#1A3D75 #751A3D #3D751A

tetradic

#1A3D75 #751A6A #75521A #1A7524

square

#1A3D75 #751A6A #75521A #1A7524

split-complementary

#1A3D75 #75241A #6A751A

monochromatic

#060D19 #0F2343 #1A3D75 #2557A7 #3773D3

Accessibility & contrast

On white

10.67

#1A3D75 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.97

#1A3D75 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1A3D75

10.67:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1A3D75	#FFFFFF	#000000	##FFFFFF
##1A3D75	1.00	10.67	1.97	10.67
#FFFFFF	10.67	1.00	21.00	1.00
#000000	1.97	21.00	1.00	21.00
##FFFFFF	10.67	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#204377

Deuteranopia (green-blind)

#0B3A74

Tritanopia (blue-blind)

#004A53

Achromatopsia (no color)

#3E3E3E

Design tokens & code

CSS

--color: #1a3d75;
/* rgb */ color: rgb(26, 61, 117);
/* oklch */ color: oklch(36.7% 0.104 259.5);

Tailwind

colors: {
  custom: {
    50: '#65729d',
    500: '#1a3d75',
    950: '#000000',
  },
}

SCSS

$custom: #1a3d75;
$custom-light: #65729d;
$custom-dark: #000000;

JSON

{
  "hex": "#1a3d75",
  "rgb": {
    "r": 26,
    "g": 61,
    "b": 117
  },
  "hsl": {
    "h": 216.923,
    "s": 63.636,
    "l": 28.039
  },
  "oklch": {
    "l": 0.3672,
    "c": 0.10442,
    "h": 259.5
  },
  "luminance": 0.04841
}

Semantic roles & 50–950 ramp

primary

#1A3D75

secondary

#AA8141

accent

#A741E7

background

#F6F6F9

surface

#EBECF2

border

#C6C7CC

text

#06070E

muted

#7A7A7E

Preview Lab

Preview with #1A3D75

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

Preview Lab → · Contrast checker → · Palette generator →