#1C3191#1C3191

#1C3191 is a dark, vivid blue. Relative luminance 0.045; OKLCH L 36.7% C 0.159 H 267.7°. Best body text is #FFFFFF at 11.07:1 contrast (WCAG AA passes).

Color values

HEX	#1C3191
RGB	rgb(28, 49, 145)
HSL	hsl(229, 68%, 34%)
HSV	hsv(229, 81%, 57%)
CMYK	cmyk(80.7%, 66.2%, 0%, 43.1%)
CIE-LAB	lab(25.22, 28.73, -55.04)
CIE-LCH	lch(25.22, 62.09, 297.56°)
OKLab	oklab(36.66% -0.0065 -0.1593)
OKLCH	oklch(36.66% 0.159 267.7)
XYZ	xyz(6.6863, 4.4871, 27.2963)
Luminance	0.0449 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1C3191 #917C1C

analogous

#1C6C91 #1C3191 #421C91

triadic

#1C3191 #911C31 #31911C

tetradic

#1C3191 #911C6C #917C1C #1C9142

square

#1C3191 #911C6C #917C1C #1C9142

split-complementary

#1C3191 #91421C #6C911C

monochromatic

#080E2A #12205E #1C3191 #2642C4 #4B65DC

Accessibility & contrast

On white

11.07

#1C3191 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.90

#1C3191 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1C3191

11.07:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1C3191	#FFFFFF	#000000	##FFFFFF
##1C3191	1.00	11.07	1.90	11.07
#FFFFFF	11.07	1.00	21.00	1.00
#000000	1.90	21.00	1.00	21.00
##FFFFFF	11.07	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004194

Deuteranopia (green-blind)

#00368F

Tritanopia (blue-blind)

#004B5C

Achromatopsia (no color)

#3C3C3C

Design tokens & code

CSS

--color: #1c3191;
/* rgb */ color: rgb(28, 49, 145);
/* oklch */ color: oklch(36.7% 0.159 267.7);

Tailwind

colors: {
  custom: {
    50: '#6d69b2',
    500: '#1c3191',
    950: '#000000',
  },
}

SCSS

$custom: #1c3191;
$custom-light: #6d69b2;
$custom-dark: #000000;

JSON

{
  "hex": "#1c3191",
  "rgb": {
    "r": 28,
    "g": 49,
    "b": 145
  },
  "hsl": {
    "h": 229.231,
    "s": 67.63,
    "l": 33.922
  },
  "oklch": {
    "l": 0.3666,
    "c": 0.15944,
    "h": 267.7
  },
  "luminance": 0.04488
}

Semantic roles & 50–950 ramp

primary

#1C3191

secondary

#BEAA4A

accent

#CB3DEB

background

#F7F6FB

surface

#EDEBF6

border

#C8C6D0

text

#080611

muted

#7B7A80

Preview Lab

Preview with #1C3191

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

Preview Lab → · Contrast checker → · Palette generator →