#1C3D79#1C3D79

#1C3D79 is a dark, moderate blue. Relative luminance 0.050; OKLCH L 37.1% C 0.110 H 261.2°. Best body text is #FFFFFF at 10.54:1 contrast (WCAG AA passes).

Color values

HEX	#1C3D79
RGB	rgb(28, 61, 121)
HSL	hsl(219, 62%, 29%)
HSV	hsv(219, 77%, 47%)
CMYK	cmyk(76.9%, 49.6%, 0%, 52.5%)
CIE-LAB	lab(26.63, 10.77, -37.76)
CIE-LCH	lch(26.63, 39.27, 285.92°)
OKLab	oklab(37.1% -0.0168 -0.1084)
OKLCH	oklch(37.1% 0.11 261.2)
XYZ	xyz(5.5976, 4.9642, 18.7486)
Luminance	0.0496 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1C3D79 #79581C

analogous

#1C6C79 #1C3D79 #2A1C79

triadic

#1C3D79 #791C3D #3D791C

tetradic

#1C3D79 #791C6C #79581C #1C792A

square

#1C3D79 #791C6C #79581C #1C792A

split-complementary

#1C3D79 #792A1C #6C791C

monochromatic

#060D19 #102447 #1C3D79 #2856AB #3D72D2

Accessibility & contrast

On white

10.54

#1C3D79 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.99

#1C3D79 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1C3D79

10.54:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1C3D79	#FFFFFF	#000000	##FFFFFF
##1C3D79	1.00	10.54	1.99	10.54
#FFFFFF	10.54	1.00	21.00	1.00
#000000	1.99	21.00	1.00	21.00
##FFFFFF	10.54	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#1C447B

Deuteranopia (green-blind)

#033B78

Tritanopia (blue-blind)

#004B55

Achromatopsia (no color)

#3F3F3F

Design tokens & code

CSS

--color: #1c3d79;
/* rgb */ color: rgb(28, 61, 121);
/* oklch */ color: oklch(37.1% 0.110 261.2);

Tailwind

colors: {
  custom: {
    50: '#6672a0',
    500: '#1c3d79',
    950: '#000000',
  },
}

SCSS

$custom: #1c3d79;
$custom-light: #6672a0;
$custom-dark: #000000;

JSON

{
  "hex": "#1c3d79",
  "rgb": {
    "r": 28,
    "g": 61,
    "b": 121
  },
  "hsl": {
    "h": 218.71,
    "s": 62.416,
    "l": 29.216
  },
  "oklch": {
    "l": 0.37105,
    "c": 0.10968,
    "h": 261.2
  },
  "luminance": 0.04965
}

Semantic roles & 50–950 ramp

primary

#1C3D79

secondary

#AD8844

accent

#AC42E5

background

#F6F6F9

surface

#EBECF2

border

#C6C7CC

text

#07070F

muted

#7A7A7E

Preview Lab

Preview with #1C3D79

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

Preview Lab → · Contrast checker → · Palette generator →