#305CC9#305CC9

#305CC9 is a mid, vivid blue. Relative luminance 0.125; OKLCH L 50.8% C 0.177 H 264.4°. Best body text is #FFFFFF at 6.00:1 contrast (WCAG AA passes).

Color values

HEX	#305CC9
RGB	rgb(48, 92, 201)
HSL	hsl(223, 61%, 49%)
HSV	hsv(223, 76%, 79%)
CMYK	cmyk(76.1%, 54.2%, 0%, 21.2%)
CIE-LAB	lab(42.00, 23.68, -61.04)
CIE-LCH	lch(42.00, 65.47, 291.20°)
OKLab	oklab(50.85% -0.0174 -0.176)
OKLCH	oklch(50.85% 0.177 264.4)
XYZ	xyz(15.5849, 12.4980, 56.8380)
Luminance	0.1250 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#305CC9 #C99D30

analogous

#30A9C9 #305CC9 #5130C9

triadic

#305CC9 #C9305C #5CC930

tetradic

#305CC9 #C930A9 #C99D30 #30C951

square

#305CC9 #C930A9 #C99D30 #30C951

split-complementary

#305CC9 #C95130 #A9C930

monochromatic

#182F66 #244598 #305CC9 #5E81D8 #8FA8E4

Accessibility & contrast

On white

6.00

#305CC9 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.50

#305CC9 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #305CC9

6.00:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##305CC9	#FFFFFF	#000000	##FFFFFF
##305CC9	1.00	6.00	3.50	6.00
#FFFFFF	6.00	1.00	21.00	1.00
#000000	3.50	21.00	1.00	21.00
##FFFFFF	6.00	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#006ACD

Deuteranopia (green-blind)

#005CC7

Tritanopia (blue-blind)

#007789

Achromatopsia (no color)

#636363

Design tokens & code

CSS

--color: #305cc9;
/* rgb */ color: rgb(48, 92, 201);
/* oklch */ color: oklch(50.8% 0.177 264.4);

Tailwind

colors: {
  custom: {
    50: '#7e89da',
    500: '#305cc9',
    950: '#000000',
  },
}

SCSS

$custom: #305cc9;
$custom-light: #7e89da;
$custom-dark: #000000;

JSON

{
  "hex": "#305cc9",
  "rgb": {
    "r": 48,
    "g": 92,
    "b": 201
  },
  "hsl": {
    "h": 222.745,
    "s": 61.446,
    "l": 48.824
  },
  "oklch": {
    "l": 0.50845,
    "c": 0.17682,
    "h": 264.4
  },
  "luminance": 0.125
}

Semantic roles & 50–950 ramp

primary

#305CC9

secondary

#CFBA86

accent

#B643E5

background

#F8F8FD

surface

#F0F0FB

border

#CBCBD4

text

#0C0B15

muted

#7D7C83

Preview Lab

Preview with #305CC9

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

Preview Lab → · Contrast checker → · Palette generator →