#1C4189#1C4189

#1C4189 is a dark, vivid blue. Relative luminance 0.058; OKLCH L 39.3% C 0.128 H 261.9°. Best body text is #FFFFFF at 9.69:1 contrast (WCAG AA passes).

Color values

HEX	#1C4189
RGB	rgb(28, 65, 137)
HSL	hsl(220, 66%, 32%)
HSV	hsv(220, 80%, 54%)
CMYK	cmyk(79.6%, 52.6%, 0%, 46.3%)
CIE-LAB	lab(28.99, 14.50, -43.96)
CIE-LCH	lch(28.99, 46.29, 288.26°)
OKLab	oklab(39.27% -0.0179 -0.1265)
OKLCH	oklch(39.27% 0.128 261.9)
XYZ	xyz(6.8829, 5.8328, 24.4252)
Luminance	0.0583 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1C4189 #89641C

analogous

#1C7889 #1C4189 #2D1C89

triadic

#1C4189 #891C41 #41891C

tetradic

#1C4189 #891C78 #89641C #1C892D

square

#1C4189 #891C78 #89641C #1C892D

split-complementary

#1C4189 #892D1C #78891C

monochromatic

#071123 #122956 #1C4189 #2659BC #4678D9

Accessibility & contrast

On white

9.69

#1C4189 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.17

#1C4189 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1C4189

9.69:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1C4189	#FFFFFF	#000000	##FFFFFF
##1C4189	1.00	9.69	2.17	9.69
#FFFFFF	9.69	1.00	21.00	1.00
#000000	2.17	21.00	1.00	21.00
##FFFFFF	9.69	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#124A8C

Deuteranopia (green-blind)

#004088

Tritanopia (blue-blind)

#00525E

Achromatopsia (no color)

#444444

Design tokens & code

CSS

--color: #1c4189;
/* rgb */ color: rgb(28, 65, 137);
/* oklch */ color: oklch(39.3% 0.128 261.9);

Tailwind

colors: {
  custom: {
    50: '#6a75ac',
    500: '#1c4189',
    950: '#000000',
  },
}

SCSS

$custom: #1c4189;
$custom-light: #6a75ac;
$custom-dark: #000000;

JSON

{
  "hex": "#1c4189",
  "rgb": {
    "r": 28,
    "g": 65,
    "b": 137
  },
  "hsl": {
    "h": 219.633,
    "s": 66.061,
    "l": 32.353
  },
  "oklch": {
    "l": 0.39274,
    "c": 0.12779,
    "h": 261.9
  },
  "luminance": 0.05834
}

Semantic roles & 50–950 ramp

primary

#1C4189

secondary

#BB9346

accent

#AF3FE9

background

#F6F7FA

surface

#ECEDF4

border

#C7C8CE

text

#070810

muted

#7A7B7F

Preview Lab

Preview with #1C4189

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

Preview Lab → · Contrast checker → · Palette generator →