#1C4388#1C4388

#1C4388 is a dark, vivid blue. Relative luminance 0.060; OKLCH L 39.6% C 0.124 H 260.8°. Best body text is #FFFFFF at 9.51:1 contrast (WCAG AA passes).

Color values

HEX	#1C4388
RGB	rgb(28, 67, 136)
HSL	hsl(218, 66%, 32%)
HSV	hsv(218, 79%, 53%)
CMYK	cmyk(79.4%, 50.7%, 0%, 46.7%)
CIE-LAB	lab(29.51, 12.71, -42.50)
CIE-LCH	lch(29.51, 44.36, 286.65°)
OKLab	oklab(39.65% -0.0197 -0.1222)
OKLCH	oklch(39.65% 0.124 260.8)
XYZ	xyz(6.9284, 6.0380, 24.0881)
Luminance	0.0604 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1C4388 #88611C

analogous

#1C7988 #1C4388 #2B1C88

triadic

#1C4388 #881C43 #43881C

tetradic

#1C4388 #881C79 #88611C #1C882B

square

#1C4388 #881C79 #88611C #1C882B

split-complementary

#1C4388 #882B1C #79881C

monochromatic

#071122 #122A55 #1C4388 #265CBB #467BD9

Accessibility & contrast

On white

9.51

#1C4388 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.21

#1C4388 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1C4388

9.51:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1C4388	#FFFFFF	#000000	##FFFFFF
##1C4388	1.00	9.51	2.21	9.51
#FFFFFF	9.51	1.00	21.00	1.00
#000000	2.21	21.00	1.00	21.00
##FFFFFF	9.51	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#1A4B8B

Deuteranopia (green-blind)

#004187

Tritanopia (blue-blind)

#00545F

Achromatopsia (no color)

#464646

Design tokens & code

CSS

--color: #1c4388;
/* rgb */ color: rgb(28, 67, 136);
/* oklch */ color: oklch(39.6% 0.124 260.8);

Tailwind

colors: {
  custom: {
    50: '#6a76ab',
    500: '#1c4388',
    950: '#000000',
  },
}

SCSS

$custom: #1c4388;
$custom-light: #6a76ab;
$custom-dark: #000000;

JSON

{
  "hex": "#1c4388",
  "rgb": {
    "r": 28,
    "g": 67,
    "b": 136
  },
  "hsl": {
    "h": 218.333,
    "s": 65.854,
    "l": 32.157
  },
  "oklch": {
    "l": 0.39649,
    "c": 0.12377,
    "h": 260.8
  },
  "luminance": 0.06039
}

Semantic roles & 50–950 ramp

primary

#1C4388

secondary

#BA9045

accent

#AB3FE9

background

#F6F7FA

surface

#ECEDF4

border

#C7C8CE

text

#070810

muted

#7A7B7F

Preview Lab

Preview with #1C4388

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

Preview Lab → · Contrast checker → · Palette generator →