#305ABB#305ABB

#305ABB is a mid, vivid blue. Relative luminance 0.115; OKLCH L 49.4% C 0.160 H 263.9°. Best body text is #FFFFFF at 6.35:1 contrast (WCAG AA passes).

Color values

HEX	#305ABB
RGB	rgb(48, 90, 187)
HSL	hsl(222, 59%, 46%)
HSV	hsv(222, 74%, 73%)
CMYK	cmyk(74.3%, 51.9%, 0%, 26.7%)
CIE-LAB	lab(40.45, 19.72, -55.41)
CIE-LCH	lch(40.45, 58.81, 289.59°)
OKLab	oklab(49.36% -0.0171 -0.1594)
OKLCH	oklch(49.36% 0.16 263.9)
XYZ	xyz(13.8415, 11.5270, 48.4995)
Luminance	0.1153 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#305ABB #BB9130

analogous

#309FBB #305ABB #4C30BB

triadic

#305ABB #BB305A #5ABB30

tetradic

#305ABB #BB309F #BB9130 #30BB4C

square

#305ABB #BB309F #BB9130 #30BB4C

split-complementary

#305ABB #BB4C30 #9FBB30

monochromatic

#172B5A #23438A #305ABB #557BD3 #86A1E0

Accessibility & contrast

On white

6.35

#305ABB on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.31

#305ABB on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #305ABB

6.35:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##305ABB	#FFFFFF	#000000	##FFFFFF
##305ABB	1.00	6.35	3.31	6.35
#FFFFFF	6.35	1.00	21.00	1.00
#000000	3.31	21.00	1.00	21.00
##FFFFFF	6.35	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#1A66BE

Deuteranopia (green-blind)

#0059B9

Tritanopia (blue-blind)

#007182

Achromatopsia (no color)

#5F5F5F

Design tokens & code

CSS

--color: #305abb;
/* rgb */ color: rgb(48, 90, 187);
/* oklch */ color: oklch(49.4% 0.160 263.9);

Tailwind

colors: {
  custom: {
    50: '#7b88d0',
    500: '#305abb',
    950: '#000000',
  },
}

SCSS

$custom: #305abb;
$custom-light: #7b88d0;
$custom-dark: #000000;

JSON

{
  "hex": "#305abb",
  "rgb": {
    "r": 48,
    "g": 90,
    "b": 187
  },
  "hsl": {
    "h": 221.871,
    "s": 59.149,
    "l": 46.078
  },
  "oklch": {
    "l": 0.49359,
    "c": 0.16033,
    "h": 263.9
  },
  "luminance": 0.11529
}

Semantic roles & 50–950 ramp

primary

#305ABB

secondary

#C9B27D

accent

#B345E2

background

#F8F8FC

surface

#EFEFF9

border

#CACAD2

text

#0B0B14

muted

#7C7C82

Preview Lab

Preview with #305ABB

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

Preview Lab → · Contrast checker → · Palette generator →