#305AB2#305AB2

#305AB2 is a mid, vivid blue. Relative luminance 0.112; OKLCH L 48.7% C 0.148 H 262.9°. Best body text is #FFFFFF at 6.50:1 contrast (WCAG AA passes).

Color values

HEX	#305AB2
RGB	rgb(48, 90, 178)
HSL	hsl(221, 58%, 44%)
HSV	hsv(221, 73%, 70%)
CMYK	cmyk(73%, 49.4%, 0%, 30.2%)
CIE-LAB	lab(39.84, 16.33, -51.12)
CIE-LCH	lch(39.84, 53.67, 287.71°)
OKLab	oklab(48.69% -0.0182 -0.1468)
OKLCH	oklch(48.69% 0.148 262.9)
XYZ	xyz(12.9081, 11.1537, 43.5834)
Luminance	0.1115 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#305AB2 #B28830

analogous

#309BB2 #305AB2 #4730B2

triadic

#305AB2 #B2305A #5AB230

tetradic

#305AB2 #B2309B #B28830 #30B247

square

#305AB2 #B2309B #B28830 #30B247

split-complementary

#305AB2 #B24730 #9BB230

monochromatic

#162952 #234282 #305AB2 #5079D0 #809EDD

Accessibility & contrast

On white

6.50

#305AB2 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.23

#305AB2 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #305AB2

6.50:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##305AB2	#FFFFFF	#000000	##FFFFFF
##305AB2	1.00	6.50	3.23	6.50
#FFFFFF	6.50	1.00	21.00	1.00
#000000	3.23	21.00	1.00	21.00
##FFFFFF	6.50	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2864B5

Deuteranopia (green-blind)

#0058B0

Tritanopia (blue-blind)

#006F7D

Achromatopsia (no color)

#5E5E5E

Design tokens & code

CSS

--color: #305ab2;
/* rgb */ color: rgb(48, 90, 178);
/* oklch */ color: oklch(48.7% 0.148 262.9);

Tailwind

colors: {
  custom: {
    50: '#7988ca',
    500: '#305ab2',
    950: '#000000',
  },
}

SCSS

$custom: #305ab2;
$custom-light: #7988ca;
$custom-dark: #000000;

JSON

{
  "hex": "#305ab2",
  "rgb": {
    "r": 48,
    "g": 90,
    "b": 178
  },
  "hsl": {
    "h": 220.615,
    "s": 57.522,
    "l": 44.314
  },
  "oklch": {
    "l": 0.48692,
    "c": 0.14794,
    "h": 262.9
  },
  "luminance": 0.11155
}

Semantic roles & 50–950 ramp

primary

#305AB2

secondary

#C6AD78

accent

#AF47E1

background

#F8F8FC

surface

#EFEFF8

border

#CACAD1

text

#0A0B13

muted

#7C7C82

Preview Lab

Preview with #305AB2

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

Preview Lab → · Contrast checker → · Palette generator →