#1C4387#1C4387

#1C4387 is a dark, vivid blue. Relative luminance 0.060; OKLCH L 39.6% C 0.122 H 260.6°. Best body text is #FFFFFF at 9.54:1 contrast (WCAG AA passes).

Color values

HEX	#1C4387
RGB	rgb(28, 67, 135)
HSL	hsl(218, 66%, 32%)
HSV	hsv(218, 79%, 53%)
CMYK	cmyk(79.3%, 50.4%, 0%, 47.1%)
CIE-LAB	lab(29.44, 12.30, -41.99)
CIE-LCH	lch(29.44, 43.76, 286.33°)
OKLab	oklab(39.57% -0.0199 -0.1207)
OKLCH	oklch(39.57% 0.122 260.6)
XYZ	xyz(6.8576, 6.0097, 23.7155)
Luminance	0.0601 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1C4387 #87601C

analogous

#1C7987 #1C4387 #2B1C87

triadic

#1C4387 #871C43 #43871C

tetradic

#1C4387 #871C79 #87601C #1C872B

square

#1C4387 #871C79 #87601C #1C872B

split-complementary

#1C4387 #872B1C #79871C

monochromatic

#071122 #112A54 #1C4387 #275CBA #457BD8

Accessibility & contrast

On white

9.54

#1C4387 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.20

#1C4387 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1C4387

9.54:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1C4387	#FFFFFF	#000000	##FFFFFF
##1C4387	1.00	9.54	2.20	9.54
#FFFFFF	9.54	1.00	21.00	1.00
#000000	2.20	21.00	1.00	21.00
##FFFFFF	9.54	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#1B4B89

Deuteranopia (green-blind)

#004186

Tritanopia (blue-blind)

#00535E

Achromatopsia (no color)

#454545

Design tokens & code

CSS

--color: #1c4387;
/* rgb */ color: rgb(28, 67, 135);
/* oklch */ color: oklch(39.6% 0.122 260.6);

Tailwind

colors: {
  custom: {
    50: '#6976aa',
    500: '#1c4387',
    950: '#000000',
  },
}

SCSS

$custom: #1c4387;
$custom-light: #6976aa;
$custom-dark: #000000;

JSON

{
  "hex": "#1c4387",
  "rgb": {
    "r": 28,
    "g": 67,
    "b": 135
  },
  "hsl": {
    "h": 218.131,
    "s": 65.644,
    "l": 31.961
  },
  "oklch": {
    "l": 0.39572,
    "c": 0.12234,
    "h": 260.6
  },
  "luminance": 0.0601
}

Semantic roles & 50–950 ramp

primary

#1C4387

secondary

#BA8F45

accent

#AB3FE9

background

#F6F7FA

surface

#ECEDF4

border

#C7C8CE

text

#070810

muted

#7A7B7F

Preview Lab

Preview with #1C4387

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

Preview Lab → · Contrast checker → · Palette generator →