#305BBA#305BBA

#305BBA is a mid, vivid blue. Relative luminance 0.117; OKLCH L 49.5% C 0.158 H 263.4°. Best body text is #FFFFFF at 6.30:1 contrast (WCAG AA passes).

Color values

HEX	#305BBA
RGB	rgb(48, 91, 186)
HSL	hsl(221, 59%, 46%)
HSV	hsv(221, 74%, 73%)
CMYK	cmyk(74.2%, 51.1%, 0%, 27.1%)
CIE-LAB	lab(40.66, 18.69, -54.49)
CIE-LCH	lch(40.66, 57.60, 288.93°)
OKLab	oklab(49.49% -0.0181 -0.1567)
OKLCH	oklch(49.49% 0.158 263.4)
XYZ	xyz(13.8198, 11.6542, 47.9660)
Luminance	0.1166 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#305BBA #BA8F30

analogous

#30A0BA #305BBA #4A30BA

triadic

#305BBA #BA305B #5BBA30

tetradic

#305BBA #BA30A0 #BA8F30 #30BA4A

square

#305BBA #BA30A0 #BA8F30 #30BA4A

split-complementary

#305BBA #BA4A30 #A0BA30

monochromatic

#172B59 #234389 #305BBA #547CD3 #85A1DF

Accessibility & contrast

On white

6.30

#305BBA on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.33

#305BBA on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #305BBA

6.30:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##305BBA	#FFFFFF	#000000	##FFFFFF
##305BBA	1.00	6.30	3.33	6.30
#FFFFFF	6.30	1.00	21.00	1.00
#000000	3.33	21.00	1.00	21.00
##FFFFFF	6.30	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#1F67BD

Deuteranopia (green-blind)

#005AB8

Tritanopia (blue-blind)

#007282

Achromatopsia (no color)

#606060

Design tokens & code

CSS

--color: #305bba;
/* rgb */ color: rgb(48, 91, 186);
/* oklch */ color: oklch(49.5% 0.158 263.4);

Tailwind

colors: {
  custom: {
    50: '#7b88cf',
    500: '#305bba',
    950: '#000000',
  },
}

SCSS

$custom: #305bba;
$custom-light: #7b88cf;
$custom-dark: #000000;

JSON

{
  "hex": "#305bba",
  "rgb": {
    "r": 48,
    "g": 91,
    "b": 186
  },
  "hsl": {
    "h": 221.304,
    "s": 58.974,
    "l": 45.882
  },
  "oklch": {
    "l": 0.49494,
    "c": 0.15773,
    "h": 263.4
  },
  "luminance": 0.11656
}

Semantic roles & 50–950 ramp

primary

#305BBA

secondary

#C9B17D

accent

#B146E2

background

#F8F8FC

surface

#EFEFF9

border

#CACAD2

text

#0B0B14

muted

#7C7C82

Preview Lab

Preview with #305BBA

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

Preview Lab → · Contrast checker → · Palette generator →