#305CBC#305CBC

#305CBC is a mid, vivid blue. Relative luminance 0.119; OKLCH L 49.9% C 0.159 H 263.3°. Best body text is #FFFFFF at 6.21:1 contrast (WCAG AA passes).

Color values

HEX	#305CBC
RGB	rgb(48, 92, 188)
HSL	hsl(221, 59%, 46%)
HSV	hsv(221, 74%, 74%)
CMYK	cmyk(74.5%, 51.1%, 0%, 26.3%)
CIE-LAB	lab(41.08, 18.79, -54.99)
CIE-LCH	lch(41.08, 58.11, 288.87°)
OKLab	oklab(49.85% -0.0186 -0.1581)
OKLCH	oklch(49.85% 0.159 263.3)
XYZ	xyz(14.1199, 11.9120, 49.1223)
Luminance	0.1191 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#305CBC #BC9030

analogous

#30A2BC #305CBC #4A30BC

triadic

#305CBC #BC305C #5CBC30

tetradic

#305CBC #BC30A2 #BC9030 #30BC4A

square

#305CBC #BC30A2 #BC9030 #30BC4A

split-complementary

#305CBC #BC4A30 #A2BC30

monochromatic

#172C5A #24448B #305CBC #557DD4 #86A2E0

Accessibility & contrast

On white

6.21

#305CBC on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.38

#305CBC on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #305CBC

6.21:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##305CBC	#FFFFFF	#000000	##FFFFFF
##305CBC	1.00	6.21	3.38	6.21
#FFFFFF	6.21	1.00	21.00	1.00
#000000	3.38	21.00	1.00	21.00
##FFFFFF	6.21	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2068BF

Deuteranopia (green-blind)

#005BBA

Tritanopia (blue-blind)

#007383

Achromatopsia (no color)

#616161

Design tokens & code

CSS

--color: #305cbc;
/* rgb */ color: rgb(48, 92, 188);
/* oklch */ color: oklch(49.9% 0.159 263.3);

Tailwind

colors: {
  custom: {
    50: '#7c89d1',
    500: '#305cbc',
    950: '#000000',
  },
}

SCSS

$custom: #305cbc;
$custom-light: #7c89d1;
$custom-dark: #000000;

JSON

{
  "hex": "#305cbc",
  "rgb": {
    "r": 48,
    "g": 92,
    "b": 188
  },
  "hsl": {
    "h": 221.143,
    "s": 59.322,
    "l": 46.275
  },
  "oklch": {
    "l": 0.49854,
    "c": 0.15924,
    "h": 263.3
  },
  "luminance": 0.11914
}

Semantic roles & 50–950 ramp

primary

#305CBC

secondary

#CAB27E

accent

#B145E3

background

#F8F8FC

surface

#EFF0F9

border

#CACBD2

text

#0B0B14

muted

#7C7C82

Preview Lab

Preview with #305CBC

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

Preview Lab → · Contrast checker → · Palette generator →