#1C3385#1C3385

#1C3385 is a dark, vivid blue. Relative luminance 0.043; OKLCH L 35.9% C 0.140 H 266.9°. Best body text is #FFFFFF at 11.28:1 contrast (WCAG AA passes).

Color values

HEX	#1C3385
RGB	rgb(28, 51, 133)
HSL	hsl(227, 65%, 32%)
HSV	hsv(227, 79%, 52%)
CMYK	cmyk(78.9%, 61.7%, 0%, 47.8%)
CIE-LAB	lab(24.66, 22.65, -48.49)
CIE-LCH	lch(24.66, 53.52, 295.03°)
OKLab	oklab(35.91% -0.0075 -0.1401)
OKLCH	oklch(35.91% 0.14 266.9)
XYZ	xyz(5.8949, 4.3073, 22.7065)
Luminance	0.0431 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1C3385 #856E1C

analogous

#1C6885 #1C3385 #3A1C85

triadic

#1C3385 #851C33 #33851C

tetradic

#1C3385 #851C68 #856E1C #1C853A

square

#1C3385 #851C68 #856E1C #1C853A

split-complementary

#1C3385 #853A1C #68851C

monochromatic

#070C20 #112052 #1C3385 #2746B8 #4464D8

Accessibility & contrast

On white

11.28

#1C3385 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.86

#1C3385 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1C3385

11.28:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1C3385	#FFFFFF	#000000	##FFFFFF
##1C3385	1.00	11.28	1.86	11.28
#FFFFFF	11.28	1.00	21.00	1.00
#000000	1.86	21.00	1.00	21.00
##FFFFFF	11.28	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004088

Deuteranopia (green-blind)

#003683

Tritanopia (blue-blind)

#004857

Achromatopsia (no color)

#3B3B3B

Design tokens & code

CSS

--color: #1c3385;
/* rgb */ color: rgb(28, 51, 133);
/* oklch */ color: oklch(35.9% 0.140 266.9);

Tailwind

colors: {
  custom: {
    50: '#6a6aa9',
    500: '#1c3385',
    950: '#000000',
  },
}

SCSS

$custom: #1c3385;
$custom-light: #6a6aa9;
$custom-dark: #000000;

JSON

{
  "hex": "#1c3385",
  "rgb": {
    "r": 28,
    "g": 51,
    "b": 133
  },
  "hsl": {
    "h": 226.857,
    "s": 65.217,
    "l": 31.569
  },
  "oklch": {
    "l": 0.35911,
    "c": 0.14031,
    "h": 266.9
  },
  "luminance": 0.04308
}

Semantic roles & 50–950 ramp

primary

#1C3385

secondary

#B89F45

accent

#C340E8

background

#F6F6FA

surface

#ECEBF4

border

#C7C6CE

text

#070610

muted

#7A7A7F

Preview Lab

Preview with #1C3385

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

Preview Lab → · Contrast checker → · Palette generator →