#305DBF#305DBF

#305DBF is a mid, vivid blue. Relative luminance 0.122; OKLCH L 50.3% C 0.162 H 263.2°. Best body text is #FFFFFF at 6.10:1 contrast (WCAG AA passes).

Color values

HEX	#305DBF
RGB	rgb(48, 93, 191)
HSL	hsl(221, 60%, 47%)
HSV	hsv(221, 75%, 75%)
CMYK	cmyk(74.9%, 51.3%, 0%, 25.1%)
CIE-LAB	lab(41.56, 19.27, -55.95)
CIE-LCH	lch(41.56, 59.18, 289.01°)
OKLab	oklab(50.29% -0.0191 -0.161)
OKLCH	oklch(50.29% 0.162 263.2)
XYZ	xyz(14.5339, 12.2171, 50.8723)
Luminance	0.1222 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#305DBF #BF9230

analogous

#30A5BF #305DBF #4B30BF

triadic

#305DBF #BF305D #5DBF30

tetradic

#305DBF #BF30A5 #BF9230 #30BF4B

square

#305DBF #BF30A5 #BF9230 #30BF4B

split-complementary

#305DBF #BF4B30 #A5BF30

monochromatic

#172D5D #24458E #305DBF #577FD5 #88A4E1

Accessibility & contrast

On white

6.10

#305DBF on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.44

#305DBF on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #305DBF

6.10:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##305DBF	#FFFFFF	#000000	##FFFFFF
##305DBF	1.00	6.10	3.44	6.10
#FFFFFF	6.10	1.00	21.00	1.00
#000000	3.44	21.00	1.00	21.00
##FFFFFF	6.10	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#1E69C3

Deuteranopia (green-blind)

#005CBD

Tritanopia (blue-blind)

#007585

Achromatopsia (no color)

#626262

Design tokens & code

CSS

--color: #305dbf;
/* rgb */ color: rgb(48, 93, 191);
/* oklch */ color: oklch(50.3% 0.162 263.2);

Tailwind

colors: {
  custom: {
    50: '#7c8ad3',
    500: '#305dbf',
    950: '#000000',
  },
}

SCSS

$custom: #305dbf;
$custom-light: #7c8ad3;
$custom-dark: #000000;

JSON

{
  "hex": "#305dbf",
  "rgb": {
    "r": 48,
    "g": 93,
    "b": 191
  },
  "hsl": {
    "h": 221.119,
    "s": 59.833,
    "l": 46.863
  },
  "oklch": {
    "l": 0.50288,
    "c": 0.1621,
    "h": 263.2
  },
  "luminance": 0.12219
}

Semantic roles & 50–950 ramp

primary

#305DBF

secondary

#CBB380

accent

#B145E3

background

#F8F8FD

surface

#EFF0FA

border

#CACBD3

text

#0B0B14

muted

#7C7C83

Preview Lab

Preview with #305DBF

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

Preview Lab → · Contrast checker → · Palette generator →