#1C3553#1C3553

#1C3553 is a dark, moderate cyan. Relative luminance 0.034; OKLCH L 32.5% C 0.062 H 254.0°. Best body text is #FFFFFF at 12.47:1 contrast (WCAG AA passes).

Color values

HEX	#1C3553
RGB	rgb(28, 53, 83)
HSL	hsl(213, 50%, 22%)
HSV	hsv(213, 66%, 33%)
CMYK	cmyk(66.3%, 36.1%, 0%, 67.5%)
CIE-LAB	lab(21.64, 1.07, -21.13)
CIE-LCH	lch(21.64, 21.16, 272.90°)
OKLab	oklab(32.45% -0.0171 -0.0597)
OKLCH	oklch(32.45% 0.062 254)
XYZ	xyz(3.3128, 3.4173, 8.6670)
Luminance	0.0342 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1C3553 #533A1C

analogous

#1C5153 #1C3553 #1E1C53

triadic

#1C3553 #531C35 #35531C

tetradic

#1C3553 #531C51 #533A1C #1C531E

square

#1C3553 #531C51 #533A1C #1C531E

split-complementary

#1C3553 #531E1C #51531C

monochromatic

#080F17 #0D1825 #1C3553 #2B5281 #3B6FAF

Accessibility & contrast

On white

12.47

#1C3553 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.68

#1C3553 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1C3553

12.47:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1C3553	#FFFFFF	#000000	##FFFFFF
##1C3553	1.00	12.47	1.68	12.47
#FFFFFF	12.47	1.00	21.00	1.00
#000000	1.68	21.00	1.00	21.00
##FFFFFF	12.47	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#283754

Deuteranopia (green-blind)

#213152

Tritanopia (blue-blind)

#003C40

Achromatopsia (no color)

#343434

Design tokens & code

CSS

--color: #1c3553;
/* rgb */ color: rgb(28, 53, 83);
/* oklch */ color: oklch(32.5% 0.062 254.0);

Tailwind

colors: {
  custom: {
    50: '#5e6c83',
    500: '#1c3553',
    950: '#000000',
  },
}

SCSS

$custom: #1c3553;
$custom-light: #5e6c83;
$custom-dark: #000000;

JSON

{
  "hex": "#1c3553",
  "rgb": {
    "r": 28,
    "g": 53,
    "b": 83
  },
  "hsl": {
    "h": 212.727,
    "s": 49.55,
    "l": 21.765
  },
  "oklch": {
    "l": 0.32452,
    "c": 0.06213,
    "h": 254
  },
  "luminance": 0.03418
}

Semantic roles & 50–950 ramp

primary

#1C3553

secondary

#896942

accent

#9A4FD9

background

#F5F6F8

surface

#E9EBEF

border

#C5C6CA

text

#05060A

muted

#797A7C

Preview Lab

Preview with #1C3553

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

Preview Lab → · Contrast checker → · Palette generator →