#1C4080#1C4080

#1C4080 is a dark, moderate blue. Relative luminance 0.055; OKLCH L 38.3% C 0.116 H 260.9°. Best body text is #FFFFFF at 10.03:1 contrast (WCAG AA passes).

Color values

HEX	#1C4080
RGB	rgb(28, 64, 128)
HSL	hsl(218, 64%, 31%)
HSV	hsv(218, 78%, 50%)
CMYK	cmyk(78.1%, 50%, 0%, 49.8%)
CIE-LAB	lab(28.04, 11.53, -39.89)
CIE-LCH	lch(28.04, 41.53, 286.12°)
OKLab	oklab(38.34% -0.0184 -0.1146)
OKLCH	oklch(38.34% 0.116 260.9)
XYZ	xyz(6.2072, 5.4715, 21.1469)
Luminance	0.0547 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1C4080 #805C1C

analogous

#1C7280 #1C4080 #2A1C80

triadic

#1C4080 #801C40 #40801C

tetradic

#1C4080 #801C72 #805C1C #1C802A

square

#1C4080 #801C72 #805C1C #1C802A

split-complementary

#1C4080 #802A1C #72801C

monochromatic

#060E1C #11274E #1C4080 #2759B2 #4176D5

Accessibility & contrast

On white

10.03

#1C4080 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.09

#1C4080 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1C4080

10.03:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1C4080	#FFFFFF	#000000	##FFFFFF
##1C4080	1.00	10.03	2.09	10.03
#FFFFFF	10.03	1.00	21.00	1.00
#000000	2.09	21.00	1.00	21.00
##FFFFFF	10.03	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#1C4782

Deuteranopia (green-blind)

#003E7F

Tritanopia (blue-blind)

#004F5A

Achromatopsia (no color)

#424242

Design tokens & code

CSS

--color: #1c4080;
/* rgb */ color: rgb(28, 64, 128);
/* oklch */ color: oklch(38.3% 0.116 260.9);

Tailwind

colors: {
  custom: {
    50: '#6874a5',
    500: '#1c4080',
    950: '#000000',
  },
}

SCSS

$custom: #1c4080;
$custom-light: #6874a5;
$custom-dark: #000000;

JSON

{
  "hex": "#1c4080",
  "rgb": {
    "r": 28,
    "g": 64,
    "b": 128
  },
  "hsl": {
    "h": 218.4,
    "s": 64.103,
    "l": 30.588
  },
  "oklch": {
    "l": 0.38341,
    "c": 0.11605,
    "h": 260.9
  },
  "luminance": 0.05472
}

Semantic roles & 50–950 ramp

primary

#1C4080

secondary

#B38B44

accent

#AB41E7

background

#F6F7FA

surface

#EBEDF4

border

#C6C8CE

text

#07080F

muted

#7A7B7F

Preview Lab

Preview with #1C4080

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

Preview Lab → · Contrast checker → · Palette generator →