#305DA5#305DA5

#305DA5 is a mid, vivid blue. Relative luminance 0.112; OKLCH L 48.4% C 0.126 H 259.4°. Best body text is #FFFFFF at 6.49:1 contrast (WCAG AA passes).

Color values

HEX	#305DA5
RGB	rgb(48, 93, 165)
HSL	hsl(217, 55%, 42%)
HSV	hsv(217, 71%, 65%)
CMYK	cmyk(70.9%, 43.6%, 0%, 35.3%)
CIE-LAB	lab(39.87, 9.47, -43.39)
CIE-LCH	lch(39.87, 44.41, 282.32°)
OKLab	oklab(48.45% -0.0232 -0.124)
OKLCH	oklch(48.45% 0.126 259.4)
XYZ	xyz(11.9224, 11.1724, 37.1182)
Luminance	0.1117 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#305DA5 #A57830

analogous

#3098A5 #305DA5 #3D30A5

triadic

#305DA5 #A5305D #5DA530

tetradic

#305DA5 #A53098 #A57830 #30A53D

square

#305DA5 #A53098 #A57830 #30A53D

split-complementary

#305DA5 #A53D30 #98A530

monochromatic

#142846 #224276 #305DA5 #487ACA #789DD8

Accessibility & contrast

On white

6.49

#305DA5 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.23

#305DA5 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #305DA5

6.49:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##305DA5	#FFFFFF	#000000	##FFFFFF
##305DA5	1.00	6.49	3.23	6.49
#FFFFFF	6.49	1.00	21.00	1.00
#000000	3.23	21.00	1.00	21.00
##FFFFFF	6.49	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#3A64A8

Deuteranopia (green-blind)

#2659A4

Tritanopia (blue-blind)

#006E79

Achromatopsia (no color)

#5E5E5E

Design tokens & code

CSS

--color: #305da5;
/* rgb */ color: rgb(48, 93, 165);
/* oklch */ color: oklch(48.4% 0.126 259.4);

Tailwind

colors: {
  custom: {
    50: '#778ac0',
    500: '#305da5',
    950: '#000000',
  },
}

SCSS

$custom: #305da5;
$custom-light: #778ac0;
$custom-dark: #000000;

JSON

{
  "hex": "#305da5",
  "rgb": {
    "r": 48,
    "g": 93,
    "b": 165
  },
  "hsl": {
    "h": 216.923,
    "s": 54.93,
    "l": 41.765
  },
  "oklch": {
    "l": 0.48449,
    "c": 0.12614,
    "h": 259.4
  },
  "luminance": 0.11174
}

Semantic roles & 50–950 ramp

primary

#305DA5

secondary

#C0A271

accent

#A54ADE

background

#F7F8FB

surface

#EEF0F7

border

#C9CBD0

text

#0A0B12

muted

#7C7C81

Preview Lab

Preview with #305DA5

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

Preview Lab → · Contrast checker → · Palette generator →