#305DB0#305DB0

#305DB0 is a mid, vivid blue. Relative luminance 0.116; OKLCH L 49.2% C 0.141 H 261.4°. Best body text is #FFFFFF at 6.33:1 contrast (WCAG AA passes).

Color values

HEX	#305DB0
RGB	rgb(48, 93, 176)
HSL	hsl(219, 57%, 44%)
HSV	hsv(219, 73%, 69%)
CMYK	cmyk(72.7%, 47.2%, 0%, 31%)
CIE-LAB	lab(40.56, 13.61, -48.79)
CIE-LCH	lch(40.56, 50.65, 285.59°)
OKLab	oklab(49.2% -0.0212 -0.1399)
OKLCH	oklch(49.2% 0.141 261.4)
XYZ	xyz(12.9669, 11.5903, 42.6196)
Luminance	0.1159 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#305DB0 #B08330

analogous

#309DB0 #305DB0 #4330B0

triadic

#305DB0 #B0305D #5DB030

tetradic

#305DB0 #B0309D #B08330 #30B043

square

#305DB0 #B0309D #B08330 #30B043

split-complementary

#305DB0 #B04330 #9DB030

monochromatic

#162A50 #234480 #305DB0 #4E7CCF #7E9FDC

Accessibility & contrast

On white

6.33

#305DB0 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.32

#305DB0 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #305DB0

6.33:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##305DB0	#FFFFFF	#000000	##FFFFFF
##305DB0	1.00	6.33	3.32	6.33
#FFFFFF	6.33	1.00	21.00	1.00
#000000	3.32	21.00	1.00	21.00
##FFFFFF	6.33	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#3166B3

Deuteranopia (green-blind)

#125AAE

Tritanopia (blue-blind)

#00717E

Achromatopsia (no color)

#606060

Design tokens & code

CSS

--color: #305db0;
/* rgb */ color: rgb(48, 93, 176);
/* oklch */ color: oklch(49.2% 0.141 261.4);

Tailwind

colors: {
  custom: {
    50: '#798ac8',
    500: '#305db0',
    950: '#000000',
  },
}

SCSS

$custom: #305db0;
$custom-light: #798ac8;
$custom-dark: #000000;

JSON

{
  "hex": "#305db0",
  "rgb": {
    "r": 48,
    "g": 93,
    "b": 176
  },
  "hsl": {
    "h": 218.906,
    "s": 57.143,
    "l": 43.922
  },
  "oklch": {
    "l": 0.49201,
    "c": 0.14147,
    "h": 261.4
  },
  "luminance": 0.11592
}

Semantic roles & 50–950 ramp

primary

#305DB0

secondary

#C5A977

accent

#AB47E0

background

#F7F8FC

surface

#EEF0F8

border

#C9CBD1

text

#0A0B13

muted

#7C7C82

Preview Lab

Preview with #305DB0

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

Preview Lab → · Contrast checker → · Palette generator →