#1C4891#1C4891

#1C4891 is a dark, vivid blue. Relative luminance 0.069; OKLCH L 41.5% C 0.130 H 260.1°. Best body text is #FFFFFF at 8.80:1 contrast (WCAG AA passes).

Color values

HEX	#1C4891
RGB	rgb(28, 72, 145)
HSL	hsl(217, 68%, 34%)
HSV	hsv(217, 81%, 57%)
CMYK	cmyk(80.7%, 50.3%, 0%, 43.1%)
CIE-LAB	lab(31.64, 12.93, -44.60)
CIE-LCH	lch(31.64, 46.44, 286.16°)
OKLab	oklab(41.48% -0.0225 -0.1283)
OKLCH	oklch(41.48% 0.13 260.1)
XYZ	xyz(7.9052, 6.9250, 27.7026)
Luminance	0.0693 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1C4891 #91651C

analogous

#1C8391 #1C4891 #2B1C91

triadic

#1C4891 #911C48 #48911C

tetradic

#1C4891 #911C83 #91651C #1C912B

square

#1C4891 #911C83 #91651C #1C912B

split-complementary

#1C4891 #912B1C #83911C

monochromatic

#08152A #122F5E #1C4891 #2661C4 #4B82DC

Accessibility & contrast

On white

8.80

#1C4891 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.39

#1C4891 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1C4891

8.80:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1C4891	#FFFFFF	#000000	##FFFFFF
##1C4891	1.00	8.80	2.39	8.80
#FFFFFF	8.80	1.00	21.00	1.00
#000000	2.39	21.00	1.00	21.00
##FFFFFF	8.80	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#1D5094

Deuteranopia (green-blind)

#004590

Tritanopia (blue-blind)

#005A65

Achromatopsia (no color)

#4A4A4A

Design tokens & code

CSS

--color: #1c4891;
/* rgb */ color: rgb(28, 72, 145);
/* oklch */ color: oklch(41.5% 0.130 260.1);

Tailwind

colors: {
  custom: {
    50: '#6c7ab2',
    500: '#1c4891',
    950: '#000000',
  },
}

SCSS

$custom: #1c4891;
$custom-light: #6c7ab2;
$custom-dark: #000000;

JSON

{
  "hex": "#1c4891",
  "rgb": {
    "r": 28,
    "g": 72,
    "b": 145
  },
  "hsl": {
    "h": 217.436,
    "s": 67.63,
    "l": 33.922
  },
  "oklch": {
    "l": 0.41483,
    "c": 0.13024,
    "h": 260.1
  },
  "luminance": 0.06926
}

Semantic roles & 50–950 ramp

primary

#1C4891

secondary

#BE934A

accent

#A93DEB

background

#F7F7FB

surface

#EDEDF6

border

#C8C8D0

text

#080911

muted

#7B7B80

Preview Lab

Preview with #1C4891

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

Preview Lab → · Contrast checker → · Palette generator →