#305CA5#305CA5

#305CA5 is a mid, vivid blue. Relative luminance 0.110; OKLCH L 48.2% C 0.127 H 260.0°. Best body text is #FFFFFF at 6.56:1 contrast (WCAG AA passes).

Color values

HEX	#305CA5
RGB	rgb(48, 92, 165)
HSL	hsl(217, 55%, 42%)
HSV	hsv(217, 71%, 65%)
CMYK	cmyk(70.9%, 44.2%, 0%, 35.3%)
CIE-LAB	lab(39.58, 10.12, -43.85)
CIE-LCH	lch(39.58, 45.01, 283.00°)
OKLab	oklab(48.22% -0.0222 -0.1254)
OKLCH	oklch(48.22% 0.127 260)
XYZ	xyz(11.8352, 10.9980, 37.0891)
Luminance	0.1100 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#305CA5 #A57930

analogous

#3097A5 #305CA5 #3F30A5

triadic

#305CA5 #A5305C #5CA530

tetradic

#305CA5 #A53097 #A57930 #30A53F

square

#305CA5 #A53097 #A57930 #30A53F

split-complementary

#305CA5 #A53F30 #97A530

monochromatic

#142746 #224276 #305CA5 #4879CA #789CD8

Accessibility & contrast

On white

6.56

#305CA5 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.20

#305CA5 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #305CA5

6.56:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##305CA5	#FFFFFF	#000000	##FFFFFF
##305CA5	1.00	6.56	3.20	6.56
#FFFFFF	6.56	1.00	21.00	1.00
#000000	3.20	21.00	1.00	21.00
##FFFFFF	6.56	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#3863A8

Deuteranopia (green-blind)

#2358A4

Tritanopia (blue-blind)

#006D78

Achromatopsia (no color)

#5D5D5D

Design tokens & code

CSS

--color: #305ca5;
/* rgb */ color: rgb(48, 92, 165);
/* oklch */ color: oklch(48.2% 0.127 260.0);

Tailwind

colors: {
  custom: {
    50: '#7789c0',
    500: '#305ca5',
    950: '#000000',
  },
}

SCSS

$custom: #305ca5;
$custom-light: #7789c0;
$custom-dark: #000000;

JSON

{
  "hex": "#305ca5",
  "rgb": {
    "r": 48,
    "g": 92,
    "b": 165
  },
  "hsl": {
    "h": 217.436,
    "s": 54.93,
    "l": 41.765
  },
  "oklch": {
    "l": 0.48224,
    "c": 0.12734,
    "h": 260
  },
  "luminance": 0.10999
}

Semantic roles & 50–950 ramp

primary

#305CA5

secondary

#C0A271

accent

#A64ADE

background

#F7F8FB

surface

#EEF0F7

border

#C9CBD0

text

#0A0B12

muted

#7C7C81

Preview Lab

Preview with #305CA5

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

Preview Lab → · Contrast checker → · Palette generator →