#305EA5#305EA5

#305EA5 is a mid, vivid blue. Relative luminance 0.114; OKLCH L 48.7% C 0.125 H 258.9°. Best body text is #FFFFFF at 6.42:1 contrast (WCAG AA passes).

Color values

HEX	#305EA5
RGB	rgb(48, 94, 165)
HSL	hsl(216, 55%, 42%)
HSV	hsv(216, 71%, 65%)
CMYK	cmyk(70.9%, 43%, 0%, 35.3%)
CIE-LAB	lab(40.16, 8.83, -42.92)
CIE-LCH	lch(40.16, 43.82, 281.62°)
OKLab	oklab(48.68% -0.0241 -0.1226)
OKLCH	oklch(48.68% 0.125 258.9)
XYZ	xyz(12.0107, 11.3491, 37.1476)
Luminance	0.1135 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#305EA5 #A57730

analogous

#3099A5 #305EA5 #3C30A5

triadic

#305EA5 #A5305E #5EA530

tetradic

#305EA5 #A53099 #A57730 #30A53C

square

#305EA5 #A53099 #A57730 #30A53C

split-complementary

#305EA5 #A53C30 #99A530

monochromatic

#142846 #224376 #305EA5 #487BCA #789DD8

Accessibility & contrast

On white

6.42

#305EA5 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.27

#305EA5 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #305EA5

6.42:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##305EA5	#FFFFFF	#000000	##FFFFFF
##305EA5	1.00	6.42	3.27	6.42
#FFFFFF	6.42	1.00	21.00	1.00
#000000	3.27	21.00	1.00	21.00
##FFFFFF	6.42	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#3C64A8

Deuteranopia (green-blind)

#285AA4

Tritanopia (blue-blind)

#006E79

Achromatopsia (no color)

#5F5F5F

Design tokens & code

CSS

--color: #305ea5;
/* rgb */ color: rgb(48, 94, 165);
/* oklch */ color: oklch(48.7% 0.125 258.9);

Tailwind

colors: {
  custom: {
    50: '#778bc0',
    500: '#305ea5',
    950: '#000000',
  },
}

SCSS

$custom: #305ea5;
$custom-light: #778bc0;
$custom-dark: #000000;

JSON

{
  "hex": "#305ea5",
  "rgb": {
    "r": 48,
    "g": 94,
    "b": 165
  },
  "hsl": {
    "h": 216.41,
    "s": 54.93,
    "l": 41.765
  },
  "oklch": {
    "l": 0.48676,
    "c": 0.12496,
    "h": 258.9
  },
  "luminance": 0.1135
}

Semantic roles & 50–950 ramp

primary

#305EA5

secondary

#C0A171

accent

#A44ADE

background

#F7F8FB

surface

#EEF0F7

border

#C9CBD0

text

#0A0B12

muted

#7C7C81

Preview Lab

Preview with #305EA5

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

Preview Lab → · Contrast checker → · Palette generator →