#1C4191#1C4191

#1C4191 is a dark, vivid blue. Relative luminance 0.061; OKLCH L 39.9% C 0.139 H 263.0°. Best body text is #FFFFFF at 9.48:1 contrast (WCAG AA passes).

Color values

HEX	#1C4191
RGB	rgb(28, 65, 145)
HSL	hsl(221, 68%, 34%)
HSV	hsv(221, 81%, 57%)
CMYK	cmyk(80.7%, 55.2%, 0%, 43.1%)
CIE-LAB	lab(29.59, 17.74, -47.91)
CIE-LCH	lch(29.59, 51.09, 290.32°)
OKLab	oklab(39.92% -0.017 -0.1381)
OKLCH	oklch(39.92% 0.139 263)
XYZ	xyz(7.4782, 6.0709, 27.5602)
Luminance	0.0607 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1C4191 #916C1C

analogous

#1C7C91 #1C4191 #321C91

triadic

#1C4191 #911C41 #41911C

tetradic

#1C4191 #911C7C #916C1C #1C9132

square

#1C4191 #911C7C #916C1C #1C9132

split-complementary

#1C4191 #91321C #7C911C

monochromatic

#08132A #122A5E #1C4191 #2658C4 #4B79DC

Accessibility & contrast

On white

9.48

#1C4191 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.21

#1C4191 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1C4191

9.48:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1C4191	#FFFFFF	#000000	##FFFFFF
##1C4191	1.00	9.48	2.21	9.48
#FFFFFF	9.48	1.00	21.00	1.00
#000000	2.21	21.00	1.00	21.00
##FFFFFF	9.48	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004B94

Deuteranopia (green-blind)

#00418F

Tritanopia (blue-blind)

#005562

Achromatopsia (no color)

#464646

Design tokens & code

CSS

--color: #1c4191;
/* rgb */ color: rgb(28, 65, 145);
/* oklch */ color: oklch(39.9% 0.139 263.0);

Tailwind

colors: {
  custom: {
    50: '#6c75b2',
    500: '#1c4191',
    950: '#000000',
  },
}

SCSS

$custom: #1c4191;
$custom-light: #6c75b2;
$custom-dark: #000000;

JSON

{
  "hex": "#1c4191",
  "rgb": {
    "r": 28,
    "g": 65,
    "b": 145
  },
  "hsl": {
    "h": 221.026,
    "s": 67.63,
    "l": 33.922
  },
  "oklch": {
    "l": 0.39924,
    "c": 0.1392,
    "h": 263
  },
  "luminance": 0.06072
}

Semantic roles & 50–950 ramp

primary

#1C4191

secondary

#BE9A4A

accent

#B43DEB

background

#F7F7FB

surface

#EDEDF6

border

#C8C8D0

text

#080811

muted

#7B7B80

Preview Lab

Preview with #1C4191

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

Preview Lab → · Contrast checker → · Palette generator →