#1A3D74#1A3D74

#1A3D74 is a dark, moderate blue. Relative luminance 0.048; OKLCH L 36.6% C 0.103 H 259.2°. Best body text is #FFFFFF at 10.69:1 contrast (WCAG AA passes).

Color values

HEX	#1A3D74
RGB	rgb(26, 61, 116)
HSL	hsl(217, 63%, 28%)
HSV	hsv(217, 78%, 45%)
CMYK	cmyk(77.6%, 47.4%, 0%, 54.5%)
CIE-LAB	lab(26.21, 8.44, -35.29)
CIE-LCH	lch(26.21, 36.28, 283.45°)
OKLab	oklab(36.65% -0.0193 -0.1011)
OKLCH	oklch(36.65% 0.103 259.2)
XYZ	xyz(5.2460, 4.8175, 17.1730)
Luminance	0.0482 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1A3D74 #74511A

analogous

#1A6A74 #1A3D74 #241A74

triadic

#1A3D74 #741A3D #3D741A

tetradic

#1A3D74 #741A6A #74511A #1A7424

square

#1A3D74 #741A6A #74511A #1A7424

split-complementary

#1A3D74 #74241A #6A741A

monochromatic

#060D19 #0F2342 #1A3D74 #2557A6 #3673D2

Accessibility & contrast

On white

10.69

#1A3D74 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.96

#1A3D74 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1A3D74

10.69:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1A3D74	#FFFFFF	#000000	##FFFFFF
##1A3D74	1.00	10.69	1.96	10.69
#FFFFFF	10.69	1.00	21.00	1.00
#000000	1.96	21.00	1.00	21.00
##FFFFFF	10.69	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#214276

Deuteranopia (green-blind)

#0D3A73

Tritanopia (blue-blind)

#004A52

Achromatopsia (no color)

#3E3E3E

Design tokens & code

CSS

--color: #1a3d74;
/* rgb */ color: rgb(26, 61, 116);
/* oklch */ color: oklch(36.6% 0.103 259.2);

Tailwind

colors: {
  custom: {
    50: '#64729c',
    500: '#1a3d74',
    950: '#000000',
  },
}

SCSS

$custom: #1a3d74;
$custom-light: #64729c;
$custom-dark: #000000;

JSON

{
  "hex": "#1a3d74",
  "rgb": {
    "r": 26,
    "g": 61,
    "b": 116
  },
  "hsl": {
    "h": 216.667,
    "s": 63.38,
    "l": 27.843
  },
  "oklch": {
    "l": 0.36645,
    "c": 0.10294,
    "h": 259.2
  },
  "luminance": 0.04818
}

Semantic roles & 50–950 ramp

primary

#1A3D74

secondary

#A98041

accent

#A641E6

background

#F6F6F9

surface

#EBECF2

border

#C6C7CC

text

#06070E

muted

#7A7A7E

Preview Lab

Preview with #1A3D74

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

Preview Lab → · Contrast checker → · Palette generator →