#305B99#305B99

#305B99 is a mid, moderate blue. Relative luminance 0.104; OKLCH L 47.2% C 0.112 H 257.7°. Best body text is #FFFFFF at 6.81:1 contrast (WCAG AA passes).

Color values

HEX	#305B99
RGB	rgb(48, 91, 153)
HSL	hsl(215, 52%, 39%)
HSV	hsv(215, 69%, 60%)
CMYK	cmyk(68.6%, 40.5%, 0%, 40%)
CIE-LAB	lab(38.57, 6.28, -38.30)
CIE-LCH	lch(38.57, 38.81, 279.31°)
OKLab	oklab(47.21% -0.0238 -0.1091)
OKLCH	oklch(47.21% 0.112 257.7)
XYZ	xyz(10.7077, 10.4094, 31.5757)
Luminance	0.1041 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#305B99 #996E30

analogous

#309099 #305B99 #3A3099

triadic

#305B99 #99305B #5B9930

tetradic

#305B99 #993090 #996E30 #30993A

square

#305B99 #993090 #996E30 #30993A

split-complementary

#305B99 #993A30 #909930

monochromatic

#13243C #213F6A #305B99 #4277C4 #7199D2

Accessibility & contrast

On white

6.81

#305B99 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.08

#305B99 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #305B99

6.81:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##305B99	#FFFFFF	#000000	##FFFFFF
##305B99	1.00	6.81	3.08	6.81
#FFFFFF	6.81	1.00	21.00	1.00
#000000	3.08	21.00	1.00	21.00
##FFFFFF	6.81	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#3F609B

Deuteranopia (green-blind)

#2F5698

Tritanopia (blue-blind)

#006972

Achromatopsia (no color)

#5B5B5B

Design tokens & code

CSS

--color: #305b99;
/* rgb */ color: rgb(48, 91, 153);
/* oklch */ color: oklch(47.2% 0.112 257.7);

Tailwind

colors: {
  custom: {
    50: '#7489b7',
    500: '#305b99',
    950: '#000000',
  },
}

SCSS

$custom: #305b99;
$custom-light: #7489b7;
$custom-dark: #000000;

JSON

{
  "hex": "#305b99",
  "rgb": {
    "r": 48,
    "g": 91,
    "b": 153
  },
  "hsl": {
    "h": 215.429,
    "s": 52.239,
    "l": 39.412
  },
  "oklch": {
    "l": 0.4721,
    "c": 0.11166,
    "h": 257.7
  },
  "luminance": 0.1041
}

Semantic roles & 50–950 ramp

primary

#305B99

secondary

#BA9A6B

accent

#A14CDC

background

#F7F8FB

surface

#EDEFF6

border

#C8CAD0

text

#090B11

muted

#7B7C80

Preview Lab

Preview with #305B99

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

Preview Lab → · Contrast checker → · Palette generator →