#305FA5#305FA5

#305FA5 is a mid, vivid blue. Relative luminance 0.115; OKLCH L 48.9% C 0.124 H 258.3°. Best body text is #FFFFFF at 6.35:1 contrast (WCAG AA passes).

Color values

HEX	#305FA5
RGB	rgb(48, 95, 165)
HSL	hsl(216, 55%, 42%)
HSV	hsv(216, 71%, 65%)
CMYK	cmyk(70.9%, 42.4%, 0%, 35.3%)
CIE-LAB	lab(40.46, 8.18, -42.45)
CIE-LCH	lch(40.46, 43.23, 280.91°)
OKLab	oklab(48.9% -0.0251 -0.1212)
OKLCH	oklch(48.9% 0.124 258.3)
XYZ	xyz(12.1002, 11.5281, 37.1775)
Luminance	0.1153 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#305FA5 #A57630

analogous

#309AA5 #305FA5 #3B30A5

triadic

#305FA5 #A5305F #5FA530

tetradic

#305FA5 #A5309A #A57630 #30A53B

square

#305FA5 #A5309A #A57630 #30A53B

split-complementary

#305FA5 #A53B30 #9AA530

monochromatic

#142846 #224476 #305FA5 #487CCA #789ED8

Accessibility & contrast

On white

6.35

#305FA5 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.31

#305FA5 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #305FA5

6.35:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##305FA5	#FFFFFF	#000000	##FFFFFF
##305FA5	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)

#3E65A8

Deuteranopia (green-blind)

#2A5AA4

Tritanopia (blue-blind)

#006F7A

Achromatopsia (no color)

#5F5F5F

Design tokens & code

CSS

--color: #305fa5;
/* rgb */ color: rgb(48, 95, 165);
/* oklch */ color: oklch(48.9% 0.124 258.3);

Tailwind

colors: {
  custom: {
    50: '#778bc0',
    500: '#305fa5',
    950: '#000000',
  },
}

SCSS

$custom: #305fa5;
$custom-light: #778bc0;
$custom-dark: #000000;

JSON

{
  "hex": "#305fa5",
  "rgb": {
    "r": 48,
    "g": 95,
    "b": 165
  },
  "hsl": {
    "h": 215.897,
    "s": 54.93,
    "l": 41.765
  },
  "oklch": {
    "l": 0.48904,
    "c": 0.12379,
    "h": 258.3
  },
  "luminance": 0.11529
}

Semantic roles & 50–950 ramp

primary

#305FA5

secondary

#C0A071

accent

#A34ADE

background

#F7F8FB

surface

#EEF0F7

border

#C9CBD0

text

#0A0C12

muted

#7C7D81

Preview Lab

Preview with #305FA5

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

Preview Lab → · Contrast checker → · Palette generator →