#305BC9#305BC9

#305BC9 is a mid, vivid blue. Relative luminance 0.123; OKLCH L 50.6% C 0.178 H 264.6°. Best body text is #FFFFFF at 6.06:1 contrast (WCAG AA passes).

Color values

HEX	#305BC9
RGB	rgb(48, 91, 201)
HSL	hsl(223, 61%, 49%)
HSV	hsv(223, 76%, 79%)
CMYK	cmyk(76.1%, 54.7%, 0%, 21.2%)
CIE-LAB	lab(41.73, 24.33, -61.48)
CIE-LCH	lch(41.73, 66.11, 291.59°)
OKLab	oklab(50.64% -0.0166 -0.1772)
OKLCH	oklch(50.64% 0.178 264.6)
XYZ	xyz(15.4989, 12.3259, 56.8093)
Luminance	0.1233 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#305BC9 #C99E30

analogous

#30A8C9 #305BC9 #5130C9

triadic

#305BC9 #C9305B #5BC930

tetradic

#305BC9 #C930A8 #C99E30 #30C951

square

#305BC9 #C930A8 #C99E30 #30C951

split-complementary

#305BC9 #C95130 #A8C930

monochromatic

#182E66 #244598 #305BC9 #5E80D8 #8FA7E4

Accessibility & contrast

On white

6.06

#305BC9 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.47

#305BC9 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #305BC9

6.06:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##305BC9	#FFFFFF	#000000	##FFFFFF
##305BC9	1.00	6.06	3.47	6.06
#FFFFFF	6.06	1.00	21.00	1.00
#000000	3.47	21.00	1.00	21.00
##FFFFFF	6.06	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#006ACD

Deuteranopia (green-blind)

#005CC7

Tritanopia (blue-blind)

#007689

Achromatopsia (no color)

#626262

Design tokens & code

CSS

--color: #305bc9;
/* rgb */ color: rgb(48, 91, 201);
/* oklch */ color: oklch(50.6% 0.178 264.6);

Tailwind

colors: {
  custom: {
    50: '#7e88da',
    500: '#305bc9',
    950: '#000000',
  },
}

SCSS

$custom: #305bc9;
$custom-light: #7e88da;
$custom-dark: #000000;

JSON

{
  "hex": "#305bc9",
  "rgb": {
    "r": 48,
    "g": 91,
    "b": 201
  },
  "hsl": {
    "h": 223.137,
    "s": 61.446,
    "l": 48.824
  },
  "oklch": {
    "l": 0.50643,
    "c": 0.17803,
    "h": 264.6
  },
  "luminance": 0.12328
}

Semantic roles & 50–950 ramp

primary

#305BC9

secondary

#CFBA86

accent

#B743E5

background

#F8F8FD

surface

#F0EFFB

border

#CBCAD4

text

#0C0B15

muted

#7D7C83

Preview Lab

Preview with #305BC9

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

Preview Lab → · Contrast checker → · Palette generator →