#1C4789#1C4789

#1C4789 is a dark, vivid blue. Relative luminance 0.066; OKLCH L 40.6% C 0.120 H 259.0°. Best body text is #FFFFFF at 9.08:1 contrast (WCAG AA passes).

Color values

HEX	#1C4789
RGB	rgb(28, 71, 137)
HSL	hsl(216, 66%, 32%)
HSV	hsv(216, 80%, 54%)
CMYK	cmyk(79.6%, 48.2%, 0%, 46.3%)
CIE-LAB	lab(30.78, 10.37, -41.07)
CIE-LCH	lch(30.78, 42.36, 284.17°)
OKLab	oklab(40.65% -0.023 -0.1179)
OKLCH	oklch(40.65% 0.12 259)
XYZ	xyz(7.2458, 6.5587, 24.5461)
Luminance	0.0656 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1C4789 #895E1C

analogous

#1C7E89 #1C4789 #271C89

triadic

#1C4789 #891C47 #47891C

tetradic

#1C4789 #891C7E #895E1C #1C8927

square

#1C4789 #891C7E #895E1C #1C8927

split-complementary

#1C4789 #89271C #7E891C

monochromatic

#071223 #122D56 #1C4789 #2661BC #4680D9

Accessibility & contrast

On white

9.08

#1C4789 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.31

#1C4789 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1C4789

9.08:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1C4789	#FFFFFF	#000000	##FFFFFF
##1C4789	1.00	9.08	2.31	9.08
#FFFFFF	9.08	1.00	21.00	1.00
#000000	2.31	21.00	1.00	21.00
##FFFFFF	9.08	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#234E8B

Deuteranopia (green-blind)

#054488

Tritanopia (blue-blind)

#005761

Achromatopsia (no color)

#484848

Design tokens & code

CSS

--color: #1c4789;
/* rgb */ color: rgb(28, 71, 137);
/* oklch */ color: oklch(40.6% 0.120 259.0);

Tailwind

colors: {
  custom: {
    50: '#6a79ac',
    500: '#1c4789',
    950: '#000000',
  },
}

SCSS

$custom: #1c4789;
$custom-light: #6a79ac;
$custom-dark: #000000;

JSON

{
  "hex": "#1c4789",
  "rgb": {
    "r": 28,
    "g": 71,
    "b": 137
  },
  "hsl": {
    "h": 216.33,
    "s": 66.061,
    "l": 32.353
  },
  "oklch": {
    "l": 0.40648,
    "c": 0.12012,
    "h": 259
  },
  "luminance": 0.06559
}

Semantic roles & 50–950 ramp

primary

#1C4789

secondary

#BB8D46

accent

#A63FE9

background

#F6F7FA

surface

#ECEDF4

border

#C7C8CE

text

#070910

muted

#7A7B7F

Preview Lab

Preview with #1C4789

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

Preview Lab → · Contrast checker → · Palette generator →