#305BA5#305BA5

#305BA5 is a mid, vivid blue. Relative luminance 0.108; OKLCH L 48.0% C 0.129 H 260.5°. Best body text is #FFFFFF at 6.63:1 contrast (WCAG AA passes).

Color values

HEX	#305BA5
RGB	rgb(48, 91, 165)
HSL	hsl(218, 55%, 42%)
HSV	hsv(218, 71%, 65%)
CMYK	cmyk(70.9%, 44.8%, 0%, 35.3%)
CIE-LAB	lab(39.29, 10.77, -44.32)
CIE-LCH	lch(39.29, 45.61, 283.66°)
OKLab	oklab(48% -0.0213 -0.1268)
OKLCH	oklch(48% 0.129 260.5)
XYZ	xyz(11.7491, 10.8259, 37.0604)
Luminance	0.1083 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#305BA5 #A57A30

analogous

#3096A5 #305BA5 #4030A5

triadic

#305BA5 #A5305B #5BA530

tetradic

#305BA5 #A53096 #A57A30 #30A540

square

#305BA5 #A53096 #A57A30 #30A540

split-complementary

#305BA5 #A54030 #96A530

monochromatic

#142746 #224176 #305BA5 #4878CA #789BD8

Accessibility & contrast

On white

6.63

#305BA5 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.17

#305BA5 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #305BA5

6.63:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##305BA5	#FFFFFF	#000000	##FFFFFF
##305BA5	1.00	6.63	3.17	6.63
#FFFFFF	6.63	1.00	21.00	1.00
#000000	3.17	21.00	1.00	21.00
##FFFFFF	6.63	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#3662A8

Deuteranopia (green-blind)

#2158A3

Tritanopia (blue-blind)

#006C78

Achromatopsia (no color)

#5D5D5D

Design tokens & code

CSS

--color: #305ba5;
/* rgb */ color: rgb(48, 91, 165);
/* oklch */ color: oklch(48.0% 0.129 260.5);

Tailwind

colors: {
  custom: {
    50: '#7788c0',
    500: '#305ba5',
    950: '#000000',
  },
}

SCSS

$custom: #305ba5;
$custom-light: #7788c0;
$custom-dark: #000000;

JSON

{
  "hex": "#305ba5",
  "rgb": {
    "r": 48,
    "g": 91,
    "b": 165
  },
  "hsl": {
    "h": 217.949,
    "s": 54.93,
    "l": 41.765
  },
  "oklch": {
    "l": 0.47999,
    "c": 0.12855,
    "h": 260.5
  },
  "luminance": 0.10827
}

Semantic roles & 50–950 ramp

primary

#305BA5

secondary

#C0A371

accent

#A84ADE

background

#F7F8FB

surface

#EEEFF7

border

#C9CAD0

text

#0A0B12

muted

#7C7C81

Preview Lab

Preview with #305BA5

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

Preview Lab → · Contrast checker → · Palette generator →