#305DBA#305DBA

#305DBA is a mid, vivid blue. Relative luminance 0.120; OKLCH L 49.9% C 0.155 H 262.7°. Best body text is #FFFFFF at 6.18:1 contrast (WCAG AA passes).

Color values

HEX	#305DBA
RGB	rgb(48, 93, 186)
HSL	hsl(220, 59%, 46%)
HSV	hsv(220, 74%, 73%)
CMYK	cmyk(74.2%, 50%, 0%, 27.1%)
CIE-LAB	lab(41.22, 17.39, -53.59)
CIE-LCH	lch(41.22, 56.34, 287.98°)
OKLab	oklab(49.92% -0.0197 -0.154)
OKLCH	oklch(49.92% 0.155 262.7)
XYZ	xyz(13.9930, 12.0007, 48.0238)
Luminance	0.1200 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#305DBA #BA8D30

analogous

#30A2BA #305DBA #4830BA

triadic

#305DBA #BA305D #5DBA30

tetradic

#305DBA #BA30A2 #BA8D30 #30BA48

square

#305DBA #BA30A2 #BA8D30 #30BA48

split-complementary

#305DBA #BA4830 #A2BA30

monochromatic

#172C59 #234589 #305DBA #547ED3 #85A2DF

Accessibility & contrast

On white

6.18

#305DBA on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.40

#305DBA on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #305DBA

6.18:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##305DBA	#FFFFFF	#000000	##FFFFFF
##305DBA	1.00	6.18	3.40	6.18
#FFFFFF	6.18	1.00	21.00	1.00
#000000	3.40	21.00	1.00	21.00
##FFFFFF	6.18	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2668BD

Deuteranopia (green-blind)

#005BB8

Tritanopia (blue-blind)

#007382

Achromatopsia (no color)

#616161

Design tokens & code

CSS

--color: #305dba;
/* rgb */ color: rgb(48, 93, 186);
/* oklch */ color: oklch(49.9% 0.155 262.7);

Tailwind

colors: {
  custom: {
    50: '#7b8acf',
    500: '#305dba',
    950: '#000000',
  },
}

SCSS

$custom: #305dba;
$custom-light: #7b8acf;
$custom-dark: #000000;

JSON

{
  "hex": "#305dba",
  "rgb": {
    "r": 48,
    "g": 93,
    "b": 186
  },
  "hsl": {
    "h": 220.435,
    "s": 58.974,
    "l": 45.882
  },
  "oklch": {
    "l": 0.49918,
    "c": 0.15527,
    "h": 262.7
  },
  "luminance": 0.12002
}

Semantic roles & 50–950 ramp

primary

#305DBA

secondary

#C9B07D

accent

#AF46E2

background

#F8F8FC

surface

#EFF0F9

border

#CACBD2

text

#0B0B14

muted

#7C7C82

Preview Lab

Preview with #305DBA

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

Preview Lab → · Contrast checker → · Palette generator →