#1C4389#1C4389

#1C4389 is a dark, vivid blue. Relative luminance 0.061; OKLCH L 39.7% C 0.125 H 261.0°. Best body text is #FFFFFF at 9.49:1 contrast (WCAG AA passes).

Color values

HEX	#1C4389
RGB	rgb(28, 67, 137)
HSL	hsl(219, 66%, 32%)
HSV	hsv(219, 80%, 54%)
CMYK	cmyk(79.6%, 51.1%, 0%, 46.3%)
CIE-LAB	lab(29.58, 13.12, -43.00)
CIE-LCH	lch(29.58, 44.96, 286.96°)
OKLab	oklab(39.73% -0.0196 -0.1237)
OKLCH	oklch(39.73% 0.125 261)
XYZ	xyz(6.9998, 6.0665, 24.4641)
Luminance	0.0607 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1C4389 #89621C

analogous

#1C7A89 #1C4389 #2B1C89

triadic

#1C4389 #891C43 #43891C

tetradic

#1C4389 #891C7A #89621C #1C892B

square

#1C4389 #891C7A #89621C #1C892B

split-complementary

#1C4389 #892B1C #7A891C

monochromatic

#071123 #122A56 #1C4389 #265CBC #467BD9

Accessibility & contrast

On white

9.49

#1C4389 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.21

#1C4389 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1C4389

9.49:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1C4389	#FFFFFF	#000000	##FFFFFF
##1C4389	1.00	9.49	2.21	9.49
#FFFFFF	9.49	1.00	21.00	1.00
#000000	2.21	21.00	1.00	21.00
##FFFFFF	9.49	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#194B8C

Deuteranopia (green-blind)

#004188

Tritanopia (blue-blind)

#00545F

Achromatopsia (no color)

#464646

Design tokens & code

CSS

--color: #1c4389;
/* rgb */ color: rgb(28, 67, 137);
/* oklch */ color: oklch(39.7% 0.125 261.0);

Tailwind

colors: {
  custom: {
    50: '#6a76ac',
    500: '#1c4389',
    950: '#000000',
  },
}

SCSS

$custom: #1c4389;
$custom-light: #6a76ac;
$custom-dark: #000000;

JSON

{
  "hex": "#1c4389",
  "rgb": {
    "r": 28,
    "g": 67,
    "b": 137
  },
  "hsl": {
    "h": 218.532,
    "s": 66.061,
    "l": 32.353
  },
  "oklch": {
    "l": 0.39727,
    "c": 0.12521,
    "h": 261
  },
  "luminance": 0.06067
}

Semantic roles & 50–950 ramp

primary

#1C4389

secondary

#BB9146

accent

#AC3FE9

background

#F6F7FA

surface

#ECEDF4

border

#C7C8CE

text

#070810

muted

#7A7B7F

Preview Lab

Preview with #1C4389

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

Preview Lab → · Contrast checker → · Palette generator →