#305CB6#305CB6

#305CB6 is a mid, vivid blue. Relative luminance 0.117; OKLCH L 49.4% C 0.151 H 262.6°. Best body text is #FFFFFF at 6.30:1 contrast (WCAG AA passes).

Color values

HEX	#305CB6
RGB	rgb(48, 92, 182)
HSL	hsl(220, 58%, 45%)
HSV	hsv(220, 74%, 71%)
CMYK	cmyk(73.6%, 49.5%, 0%, 28.6%)
CIE-LAB	lab(40.67, 16.53, -52.13)
CIE-LCH	lch(40.67, 54.69, 287.59°)
OKLab	oklab(49.41% -0.0194 -0.1497)
OKLCH	oklch(49.41% 0.151 262.6)
XYZ	xyz(13.4866, 11.6586, 45.7865)
Luminance	0.1166 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#305CB6 #B68A30

analogous

#309FB6 #305CB6 #4730B6

triadic

#305CB6 #B6305C #5CB630

tetradic

#305CB6 #B6309F #B68A30 #30B647

square

#305CB6 #B6309F #B68A30 #30B647

split-complementary

#305CB6 #B64730 #9FB630

monochromatic

#162B55 #234486 #305CB6 #527CD1 #82A0DE

Accessibility & contrast

On white

6.30

#305CB6 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.33

#305CB6 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #305CB6

6.30:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##305CB6	#FFFFFF	#000000	##FFFFFF
##305CB6	1.00	6.30	3.33	6.30
#FFFFFF	6.30	1.00	21.00	1.00
#000000	3.33	21.00	1.00	21.00
##FFFFFF	6.30	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2866B9

Deuteranopia (green-blind)

#005AB4

Tritanopia (blue-blind)

#007180

Achromatopsia (no color)

#606060

Design tokens & code

CSS

--color: #305cb6;
/* rgb */ color: rgb(48, 92, 182);
/* oklch */ color: oklch(49.4% 0.151 262.6);

Tailwind

colors: {
  custom: {
    50: '#7a89cc',
    500: '#305cb6',
    950: '#000000',
  },
}

SCSS

$custom: #305cb6;
$custom-light: #7a89cc;
$custom-dark: #000000;

JSON

{
  "hex": "#305cb6",
  "rgb": {
    "r": 48,
    "g": 92,
    "b": 182
  },
  "hsl": {
    "h": 220.299,
    "s": 58.261,
    "l": 45.098
  },
  "oklch": {
    "l": 0.49413,
    "c": 0.151,
    "h": 262.6
  },
  "luminance": 0.1166
}

Semantic roles & 50–950 ramp

primary

#305CB6

secondary

#C7AE7B

accent

#AF46E1

background

#F8F8FC

surface

#EFF0F9

border

#CACBD2

text

#0B0B13

muted

#7C7C82

Preview Lab

Preview with #305CB6

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

Preview Lab → · Contrast checker → · Palette generator →