#305CBA#305CBA

#305CBA is a mid, vivid blue. Relative luminance 0.118; OKLCH L 49.7% C 0.156 H 263.1°. Best body text is #FFFFFF at 6.24:1 contrast (WCAG AA passes).

Color values

HEX	#305CBA
RGB	rgb(48, 92, 186)
HSL	hsl(221, 59%, 46%)
HSV	hsv(221, 74%, 73%)
CMYK	cmyk(74.2%, 50.5%, 0%, 27.1%)
CIE-LAB	lab(40.94, 18.04, -54.04)
CIE-LCH	lch(40.94, 56.97, 288.46°)
OKLab	oklab(49.71% -0.0189 -0.1553)
OKLCH	oklch(49.71% 0.156 263.1)
XYZ	xyz(13.9058, 11.8263, 47.9947)
Luminance	0.1183 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#305CBA #BA8E30

analogous

#30A1BA #305CBA #4930BA

triadic

#305CBA #BA305C #5CBA30

tetradic

#305CBA #BA30A1 #BA8E30 #30BA49

square

#305CBA #BA30A1 #BA8E30 #30BA49

split-complementary

#305CBA #BA4930 #A1BA30

monochromatic

#172C59 #234489 #305CBA #547DD3 #85A2DF

Accessibility & contrast

On white

6.24

#305CBA on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.37

#305CBA on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #305CBA

6.24:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##305CBA	#FFFFFF	#000000	##FFFFFF
##305CBA	1.00	6.24	3.37	6.24
#FFFFFF	6.24	1.00	21.00	1.00
#000000	3.37	21.00	1.00	21.00
##FFFFFF	6.24	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2367BD

Deuteranopia (green-blind)

#005BB8

Tritanopia (blue-blind)

#007282

Achromatopsia (no color)

#616161

Design tokens & code

CSS

--color: #305cba;
/* rgb */ color: rgb(48, 92, 186);
/* oklch */ color: oklch(49.7% 0.156 263.1);

Tailwind

colors: {
  custom: {
    50: '#7b89cf',
    500: '#305cba',
    950: '#000000',
  },
}

SCSS

$custom: #305cba;
$custom-light: #7b89cf;
$custom-dark: #000000;

JSON

{
  "hex": "#305cba",
  "rgb": {
    "r": 48,
    "g": 92,
    "b": 186
  },
  "hsl": {
    "h": 220.87,
    "s": 58.974,
    "l": 45.882
  },
  "oklch": {
    "l": 0.49705,
    "c": 0.15649,
    "h": 263.1
  },
  "luminance": 0.11828
}

Semantic roles & 50–950 ramp

primary

#305CBA

secondary

#C9B17D

accent

#B046E2

background

#F8F8FC

surface

#EFF0F9

border

#CACBD2

text

#0B0B14

muted

#7C7C82

Preview Lab

Preview with #305CBA

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

Preview Lab → · Contrast checker → · Palette generator →