#1C4178#1C4178

#1C4178 is a dark, moderate blue. Relative luminance 0.054; OKLCH L 38.0% C 0.103 H 258.4°. Best body text is #FFFFFF at 10.11:1 contrast (WCAG AA passes).

Color values

HEX	#1C4178
RGB	rgb(28, 65, 120)
HSL	hsl(216, 62%, 29%)
HSV	hsv(216, 77%, 47%)
CMYK	cmyk(76.7%, 45.8%, 0%, 52.9%)
CIE-LAB	lab(27.80, 7.59, -35.26)
CIE-LCH	lch(27.80, 36.07, 282.14°)
OKLab	oklab(37.98% -0.0208 -0.1009)
OKLCH	oklch(37.98% 0.103 258.4)
XYZ	xyz(5.7581, 5.3829, 18.5012)
Luminance	0.0538 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1C4178 #78531C

analogous

#1C6F78 #1C4178 #251C78

triadic

#1C4178 #781C41 #41781C

tetradic

#1C4178 #781C6F #78531C #1C7825

square

#1C4178 #781C6F #78531C #1C7825

split-complementary

#1C4178 #78251C #6F781C

monochromatic

#060D19 #102646 #1C4178 #285CAA #3D79D2

Accessibility & contrast

On white

10.11

#1C4178 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.08

#1C4178 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1C4178

10.11:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1C4178	#FFFFFF	#000000	##FFFFFF
##1C4178	1.00	10.11	2.08	10.11
#FFFFFF	10.11	1.00	21.00	1.00
#000000	2.08	21.00	1.00	21.00
##FFFFFF	10.11	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#25467A

Deuteranopia (green-blind)

#143E77

Tritanopia (blue-blind)

#004E56

Achromatopsia (no color)

#424242

Design tokens & code

CSS

--color: #1c4178;
/* rgb */ color: rgb(28, 65, 120);
/* oklch */ color: oklch(38.0% 0.103 258.4);

Tailwind

colors: {
  custom: {
    50: '#66759f',
    500: '#1c4178',
    950: '#000000',
  },
}

SCSS

$custom: #1c4178;
$custom-light: #66759f;
$custom-dark: #000000;

JSON

{
  "hex": "#1c4178",
  "rgb": {
    "r": 28,
    "g": 65,
    "b": 120
  },
  "hsl": {
    "h": 215.87,
    "s": 62.162,
    "l": 29.02
  },
  "oklch": {
    "l": 0.37981,
    "c": 0.10305,
    "h": 258.4
  },
  "luminance": 0.05384
}

Semantic roles & 50–950 ramp

primary

#1C4178

secondary

#AC8244

accent

#A443E5

background

#F6F7F9

surface

#EBEDF2

border

#C6C8CC

text

#06080E

muted

#7A7B7E

Preview Lab

Preview with #1C4178

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

Preview Lab → · Contrast checker → · Palette generator →