#305FB2#305FB2

#305FB2 is a mid, vivid blue. Relative luminance 0.120; OKLCH L 49.8% C 0.142 H 260.8°. Best body text is #FFFFFF at 6.17:1 contrast (WCAG AA passes).

Color values

HEX	#305FB2
RGB	rgb(48, 95, 178)
HSL	hsl(218, 58%, 44%)
HSV	hsv(218, 73%, 70%)
CMYK	cmyk(73%, 46.6%, 0%, 30.2%)
CIE-LAB	lab(41.26, 13.07, -48.84)
CIE-LCH	lch(41.26, 50.56, 284.98°)
OKLab	oklab(49.78% -0.0226 -0.14)
OKLCH	oklch(49.78% 0.142 260.8)
XYZ	xyz(13.3441, 12.0257, 43.7288)
Luminance	0.1203 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#305FB2 #B28330

analogous

#30A0B2 #305FB2 #4230B2

triadic

#305FB2 #B2305F #5FB230

tetradic

#305FB2 #B230A0 #B28330 #30B242

square

#305FB2 #B230A0 #B28330 #30B242

split-complementary

#305FB2 #B24230 #A0B230

monochromatic

#162C52 #234582 #305FB2 #507ED0 #80A1DD

Accessibility & contrast

On white

6.17

#305FB2 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.41

#305FB2 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #305FB2

6.17:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##305FB2	#FFFFFF	#000000	##FFFFFF
##305FB2	1.00	6.17	3.41	6.17
#FFFFFF	6.17	1.00	21.00	1.00
#000000	3.41	21.00	1.00	21.00
##FFFFFF	6.17	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#3468B5

Deuteranopia (green-blind)

#165CB0

Tritanopia (blue-blind)

#007380

Achromatopsia (no color)

#616161

Design tokens & code

CSS

--color: #305fb2;
/* rgb */ color: rgb(48, 95, 178);
/* oklch */ color: oklch(49.8% 0.142 260.8);

Tailwind

colors: {
  custom: {
    50: '#798bc9',
    500: '#305fb2',
    950: '#000000',
  },
}

SCSS

$custom: #305fb2;
$custom-light: #798bc9;
$custom-dark: #000000;

JSON

{
  "hex": "#305fb2",
  "rgb": {
    "r": 48,
    "g": 95,
    "b": 178
  },
  "hsl": {
    "h": 218.308,
    "s": 57.522,
    "l": 44.314
  },
  "oklch": {
    "l": 0.4978,
    "c": 0.14182,
    "h": 260.8
  },
  "luminance": 0.12027
}

Semantic roles & 50–950 ramp

primary

#305FB2

secondary

#C6AA78

accent

#A947E1

background

#F7F8FC

surface

#EEF0F8

border

#C9CBD1

text

#0A0C13

muted

#7C7D82

Preview Lab

Preview with #305FB2

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

Preview Lab → · Contrast checker → · Palette generator →