#305FA8#305FA8

#305FA8 is a mid, vivid blue. Relative luminance 0.116; OKLCH L 49.1% C 0.128 H 259.0°. Best body text is #FFFFFF at 6.31:1 contrast (WCAG AA passes).

Color values

HEX	#305FA8
RGB	rgb(48, 95, 168)
HSL	hsl(217, 56%, 42%)
HSV	hsv(217, 71%, 66%)
CMYK	cmyk(71.4%, 43.5%, 0%, 34.1%)
CIE-LAB	lab(40.64, 9.31, -43.94)
CIE-LCH	lch(40.64, 44.92, 281.96°)
OKLab	oklab(49.1% -0.0245 -0.1256)
OKLCH	oklch(49.1% 0.128 259)
XYZ	xyz(12.3765, 11.6386, 38.6324)
Luminance	0.1164 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#305FA8 #A87930

analogous

#309BA8 #305FA8 #3D30A8

triadic

#305FA8 #A8305F #5FA830

tetradic

#305FA8 #A8309B #A87930 #30A83D

square

#305FA8 #A8309B #A87930 #30A83D

split-complementary

#305FA8 #A83D30 #9BA830

monochromatic

#152949 #224478 #305FA8 #4A7DCB #7A9FD9

Accessibility & contrast

On white

6.31

#305FA8 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.33

#305FA8 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #305FA8

6.31:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##305FA8	#FFFFFF	#000000	##FFFFFF
##305FA8	1.00	6.31	3.33	6.31
#FFFFFF	6.31	1.00	21.00	1.00
#000000	3.33	21.00	1.00	21.00
##FFFFFF	6.31	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#3C66AB

Deuteranopia (green-blind)

#275BA7

Tritanopia (blue-blind)

#00707B

Achromatopsia (no color)

#606060

Design tokens & code

CSS

--color: #305fa8;
/* rgb */ color: rgb(48, 95, 168);
/* oklch */ color: oklch(49.1% 0.128 259.0);

Tailwind

colors: {
  custom: {
    50: '#778bc2',
    500: '#305fa8',
    950: '#000000',
  },
}

SCSS

$custom: #305fa8;
$custom-light: #778bc2;
$custom-dark: #000000;

JSON

{
  "hex": "#305fa8",
  "rgb": {
    "r": 48,
    "g": 95,
    "b": 168
  },
  "hsl": {
    "h": 216.5,
    "s": 55.556,
    "l": 42.353
  },
  "oklch": {
    "l": 0.49101,
    "c": 0.12796,
    "h": 259
  },
  "luminance": 0.1164
}

Semantic roles & 50–950 ramp

primary

#305FA8

secondary

#C1A273

accent

#A449DF

background

#F7F8FC

surface

#EEF0F8

border

#C9CBD1

text

#0A0C12

muted

#7C7D81

Preview Lab

Preview with #305FA8

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

Preview Lab → · Contrast checker → · Palette generator →