#305DBC#305DBC

#305DBC is a mid, vivid blue. Relative luminance 0.121; OKLCH L 50.1% C 0.158 H 262.9°. Best body text is #FFFFFF at 6.14:1 contrast (WCAG AA passes).

Color values

HEX	#305DBC
RGB	rgb(48, 93, 188)
HSL	hsl(221, 59%, 46%)
HSV	hsv(221, 74%, 74%)
CMYK	cmyk(74.5%, 50.5%, 0%, 26.3%)
CIE-LAB	lab(41.35, 18.14, -54.54)
CIE-LCH	lch(41.35, 57.48, 288.40°)
OKLab	oklab(50.07% -0.0195 -0.1568)
OKLCH	oklch(50.07% 0.158 262.9)
XYZ	xyz(14.2071, 12.0864, 49.1513)
Luminance	0.1209 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#305DBC #BC8F30

analogous

#30A3BC #305DBC #4930BC

triadic

#305DBC #BC305D #5DBC30

tetradic

#305DBC #BC30A3 #BC8F30 #30BC49

square

#305DBC #BC30A3 #BC8F30 #30BC49

split-complementary

#305DBC #BC4930 #A3BC30

monochromatic

#172D5A #24458B #305DBC #557ED4 #86A3E0

Accessibility & contrast

On white

6.14

#305DBC on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.42

#305DBC on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #305DBC

6.14:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##305DBC	#FFFFFF	#000000	##FFFFFF
##305DBC	1.00	6.14	3.42	6.14
#FFFFFF	6.14	1.00	21.00	1.00
#000000	3.42	21.00	1.00	21.00
##FFFFFF	6.14	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2368BF

Deuteranopia (green-blind)

#005BBA

Tritanopia (blue-blind)

#007483

Achromatopsia (no color)

#626262

Design tokens & code

CSS

--color: #305dbc;
/* rgb */ color: rgb(48, 93, 188);
/* oklch */ color: oklch(50.1% 0.158 262.9);

Tailwind

colors: {
  custom: {
    50: '#7b8ad1',
    500: '#305dbc',
    950: '#000000',
  },
}

SCSS

$custom: #305dbc;
$custom-light: #7b8ad1;
$custom-dark: #000000;

JSON

{
  "hex": "#305dbc",
  "rgb": {
    "r": 48,
    "g": 93,
    "b": 188
  },
  "hsl": {
    "h": 220.714,
    "s": 59.322,
    "l": 46.275
  },
  "oklch": {
    "l": 0.50065,
    "c": 0.158,
    "h": 262.9
  },
  "luminance": 0.12088
}

Semantic roles & 50–950 ramp

primary

#305DBC

secondary

#CAB17E

accent

#B045E3

background

#F8F8FC

surface

#EFF0F9

border

#CACBD2

text

#0B0B14

muted

#7C7C82

Preview Lab

Preview with #305DBC

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

Preview Lab → · Contrast checker → · Palette generator →