#1C4081#1C4081

#1C4081 is a dark, moderate blue. Relative luminance 0.055; OKLCH L 38.4% C 0.118 H 261.1°. Best body text is #FFFFFF at 10.00:1 contrast (WCAG AA passes).

Color values

HEX	#1C4081
RGB	rgb(28, 64, 129)
HSL	hsl(219, 64%, 31%)
HSV	hsv(219, 78%, 51%)
CMYK	cmyk(78.3%, 50.4%, 0%, 49.4%)
CIE-LAB	lab(28.11, 11.94, -40.41)
CIE-LCH	lch(28.11, 42.13, 286.46°)
OKLab	oklab(38.42% -0.0182 -0.1161)
OKLCH	oklch(38.42% 0.118 261.1)
XYZ	xyz(6.2733, 5.4979, 21.4952)
Luminance	0.0550 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1C4081 #815D1C

analogous

#1C7281 #1C4081 #2A1C81

triadic

#1C4081 #811C40 #40811C

tetradic

#1C4081 #811C72 #815D1C #1C812A

square

#1C4081 #811C72 #815D1C #1C812A

split-complementary

#1C4081 #812A1C #72811C

monochromatic

#060E1C #11274F #1C4081 #2759B3 #4276D6

Accessibility & contrast

On white

10.00

#1C4081 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.10

#1C4081 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1C4081

10.00:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1C4081	#FFFFFF	#000000	##FFFFFF
##1C4081	1.00	10.00	2.10	10.00
#FFFFFF	10.00	1.00	21.00	1.00
#000000	2.10	21.00	1.00	21.00
##FFFFFF	10.00	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#1B4783

Deuteranopia (green-blind)

#003E80

Tritanopia (blue-blind)

#00505A

Achromatopsia (no color)

#424242

Design tokens & code

CSS

--color: #1c4081;
/* rgb */ color: rgb(28, 64, 129);
/* oklch */ color: oklch(38.4% 0.118 261.1);

Tailwind

colors: {
  custom: {
    50: '#6874a6',
    500: '#1c4081',
    950: '#000000',
  },
}

SCSS

$custom: #1c4081;
$custom-light: #6874a6;
$custom-dark: #000000;

JSON

{
  "hex": "#1c4081",
  "rgb": {
    "r": 28,
    "g": 64,
    "b": 129
  },
  "hsl": {
    "h": 218.614,
    "s": 64.331,
    "l": 30.784
  },
  "oklch": {
    "l": 0.38418,
    "c": 0.11751,
    "h": 261.1
  },
  "luminance": 0.05499
}

Semantic roles & 50–950 ramp

primary

#1C4081

secondary

#B48C44

accent

#AC40E7

background

#F6F7FA

surface

#EBEDF4

border

#C6C8CE

text

#07080F

muted

#7A7B7F

Preview Lab

Preview with #1C4081

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

Preview Lab → · Contrast checker → · Palette generator →