#1C305F#1C305F

#1C305F is a dark, moderate blue. Relative luminance 0.032; OKLCH L 32.0% C 0.087 H 264.6°. Best body text is #FFFFFF at 12.83:1 contrast (WCAG AA passes).

Color values

HEX	#1C305F
RGB	rgb(28, 48, 95)
HSL	hsl(222, 54%, 24%)
HSV	hsv(222, 71%, 37%)
CMYK	cmyk(70.5%, 49.5%, 0%, 62.7%)
CIE-LAB	lab(20.78, 9.41, -30.44)
CIE-LCH	lch(20.78, 31.86, 287.17°)
OKLab	oklab(32.03% -0.0082 -0.0871)
OKLCH	oklch(32.03% 0.087 264.6)
XYZ	xyz(3.6007, 3.1867, 11.2496)
Luminance	0.0319 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1C305F #5F4B1C

analogous

#1C525F #1C305F #2A1C5F

triadic

#1C305F #5F1C30 #305F1C

tetradic

#1C305F #5F1C52 #5F4B1C #1C5F2A

square

#1C305F #5F1C52 #5F4B1C #1C5F2A

split-complementary

#1C305F #5F2A1C #525F1C

monochromatic

#070C18 #0E1830 #1C305F #2A488E #3860BE

Accessibility & contrast

On white

12.83

#1C305F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.64

#1C305F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1C305F

12.83:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1C305F	#FFFFFF	#000000	##FFFFFF
##1C305F	1.00	12.83	1.64	12.83
#FFFFFF	12.83	1.00	21.00	1.00
#000000	1.64	21.00	1.00	21.00
##FFFFFF	12.83	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#193561

Deuteranopia (green-blind)

#0C2F5E

Tritanopia (blue-blind)

#003B42

Achromatopsia (no color)

#323232

Design tokens & code

CSS

--color: #1c305f;
/* rgb */ color: rgb(28, 48, 95);
/* oklch */ color: oklch(32.0% 0.087 264.6);

Tailwind

colors: {
  custom: {
    50: '#61678d',
    500: '#1c305f',
    950: '#000000',
  },
}

SCSS

$custom: #1c305f;
$custom-light: #61678d;
$custom-dark: #000000;

JSON

{
  "hex": "#1c305f",
  "rgb": {
    "r": 28,
    "g": 48,
    "b": 95
  },
  "hsl": {
    "h": 222.09,
    "s": 54.472,
    "l": 24.118
  },
  "oklch": {
    "l": 0.32028,
    "c": 0.08746,
    "h": 264.6
  },
  "luminance": 0.03187
}

Semantic roles & 50–950 ramp

primary

#1C305F

secondary

#947C42

accent

#B24ADE

background

#F6F6F8

surface

#EBEBF0

border

#C6C6CB

text

#05060C

muted

#7A7A7D

Preview Lab

Preview with #1C305F

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

Preview Lab → · Contrast checker → · Palette generator →