#305BCD#305BCD

#305BCD is a mid, vivid blue. Relative luminance 0.125; OKLCH L 51.0% C 0.183 H 264.9°. Best body text is #FFFFFF at 5.99:1 contrast (WCAG AA passes).

Color values

HEX	#305BCD
RGB	rgb(48, 91, 205)
HSL	hsl(224, 62%, 50%)
HSV	hsv(224, 77%, 80%)
CMYK	cmyk(76.6%, 55.6%, 0%, 19.6%)
CIE-LAB	lab(42.03, 25.83, -63.30)
CIE-LCH	lch(42.03, 68.37, 292.19°)
OKLab	oklab(50.96% -0.0164 -0.1826)
OKLCH	oklch(50.96% 0.183 264.9)
XYZ	xyz(15.9756, 12.5165, 59.3197)
Luminance	0.1252 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#305BCD #CDA230

analogous

#30A9CD #305BCD #5430CD

triadic

#305BCD #CD305B #5BCD30

tetradic

#305BCD #CD30A9 #CDA230 #30CD54

square

#305BCD #CD30A9 #CDA230 #30CD54

split-complementary

#305BCD #CD5430 #A9CD30

monochromatic

#192F6A #24459B #305BCD #6082DA #92A9E5

Accessibility & contrast

On white

5.99

#305BCD on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.50

#305BCD on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #305BCD

5.99:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##305BCD	#FFFFFF	#000000	##FFFFFF
##305BCD	1.00	5.99	3.50	5.99
#FFFFFF	5.99	1.00	21.00	1.00
#000000	3.50	21.00	1.00	21.00
##FFFFFF	5.99	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#006BD1

Deuteranopia (green-blind)

#005CCB

Tritanopia (blue-blind)

#00778B

Achromatopsia (no color)

#636363

Design tokens & code

CSS

--color: #305bcd;
/* rgb */ color: rgb(48, 91, 205);
/* oklch */ color: oklch(51.0% 0.183 264.9);

Tailwind

colors: {
  custom: {
    50: '#7f88dd',
    500: '#305bcd',
    950: '#000000',
  },
}

SCSS

$custom: #305bcd;
$custom-light: #7f88dd;
$custom-dark: #000000;

JSON

{
  "hex": "#305bcd",
  "rgb": {
    "r": 48,
    "g": 91,
    "b": 205
  },
  "hsl": {
    "h": 223.567,
    "s": 62.055,
    "l": 49.608
  },
  "oklch": {
    "l": 0.50959,
    "c": 0.18335,
    "h": 264.9
  },
  "luminance": 0.12518
}

Semantic roles & 50–950 ramp

primary

#305BCD

secondary

#D0BD89

accent

#B943E5

background

#F8F8FD

surface

#F0EFFB

border

#CBCAD4

text

#0C0B15

muted

#7D7C83

Preview Lab

Preview with #305BCD

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

Preview Lab → · Contrast checker → · Palette generator →