#305BA8#305BA8

#305BA8 is a mid, vivid blue. Relative luminance 0.109; OKLCH L 48.2% C 0.133 H 261.0°. Best body text is #FFFFFF at 6.59:1 contrast (WCAG AA passes).

Color values

HEX	#305BA8
RGB	rgb(48, 91, 168)
HSL	hsl(219, 56%, 42%)
HSV	hsv(219, 71%, 66%)
CMYK	cmyk(71.4%, 45.8%, 0%, 34.1%)
CIE-LAB	lab(39.47, 11.90, -45.80)
CIE-LCH	lch(39.47, 47.32, 284.57°)
OKLab	oklab(48.2% -0.0207 -0.1311)
OKLCH	oklch(48.2% 0.133 261)
XYZ	xyz(12.0254, 10.9364, 38.5154)
Luminance	0.1094 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#305BA8 #A87D30

analogous

#3097A8 #305BA8 #4130A8

triadic

#305BA8 #A8305B #5BA830

tetradic

#305BA8 #A83097 #A87D30 #30A841

square

#305BA8 #A83097 #A87D30 #30A841

split-complementary

#305BA8 #A84130 #97A830

monochromatic

#152749 #224178 #305BA8 #4A78CB #7A9CD9

Accessibility & contrast

On white

6.59

#305BA8 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.19

#305BA8 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #305BA8

6.59:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##305BA8	#FFFFFF	#000000	##FFFFFF
##305BA8	1.00	6.59	3.19	6.59
#FFFFFF	6.59	1.00	21.00	1.00
#000000	3.19	21.00	1.00	21.00
##FFFFFF	6.59	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#3463AB

Deuteranopia (green-blind)

#1C58A6

Tritanopia (blue-blind)

#006D79

Achromatopsia (no color)

#5D5D5D

Design tokens & code

CSS

--color: #305ba8;
/* rgb */ color: rgb(48, 91, 168);
/* oklch */ color: oklch(48.2% 0.133 261.0);

Tailwind

colors: {
  custom: {
    50: '#7788c2',
    500: '#305ba8',
    950: '#000000',
  },
}

SCSS

$custom: #305ba8;
$custom-light: #7788c2;
$custom-dark: #000000;

JSON

{
  "hex": "#305ba8",
  "rgb": {
    "r": 48,
    "g": 91,
    "b": 168
  },
  "hsl": {
    "h": 218.5,
    "s": 55.556,
    "l": 42.353
  },
  "oklch": {
    "l": 0.48204,
    "c": 0.13276,
    "h": 261
  },
  "luminance": 0.10938
}

Semantic roles & 50–950 ramp

primary

#305BA8

secondary

#C1A573

accent

#A949DF

background

#F7F8FC

surface

#EEEFF8

border

#C9CAD1

text

#0A0B12

muted

#7C7C81

Preview Lab

Preview with #305BA8

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

Preview Lab → · Contrast checker → · Palette generator →