#305D9F#305D9F

#305D9F is a mid, moderate blue. Relative luminance 0.110; OKLCH L 48.1% C 0.118 H 258.0°. Best body text is #FFFFFF at 6.58:1 contrast (WCAG AA passes).

Color values

HEX	#305D9F
RGB	rgb(48, 93, 159)
HSL	hsl(216, 54%, 41%)
HSV	hsv(216, 70%, 62%)
CMYK	cmyk(69.8%, 41.5%, 0%, 37.6%)
CIE-LAB	lab(39.51, 7.23, -40.39)
CIE-LCH	lch(39.51, 41.03, 280.15°)
OKLab	oklab(48.06% -0.0244 -0.1152)
OKLCH	oklch(48.06% 0.118 258)
XYZ	xyz(11.3890, 10.9591, 34.3093)
Luminance	0.1096 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#305D9F #9F7230

analogous

#30949F #305D9F #3B309F

triadic

#305D9F #9F305D #5D9F30

tetradic

#305D9F #9F3094 #9F7230 #309F3B

square

#305D9F #9F3094 #9F7230 #309F3B

split-complementary

#305D9F #9F3B30 #949F30

monochromatic

#142641 #224270 #305D9F #457AC7 #749CD5

Accessibility & contrast

On white

6.58

#305D9F on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.19

#305D9F on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #305D9F

6.58:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##305D9F	#FFFFFF	#000000	##FFFFFF
##305D9F	1.00	6.58	3.19	6.58
#FFFFFF	6.58	1.00	21.00	1.00
#000000	3.19	21.00	1.00	21.00
##FFFFFF	6.58	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#3E63A2

Deuteranopia (green-blind)

#2D589E

Tritanopia (blue-blind)

#006C76

Achromatopsia (no color)

#5D5D5D

Design tokens & code

CSS

--color: #305d9f;
/* rgb */ color: rgb(48, 93, 159);
/* oklch */ color: oklch(48.1% 0.118 258.0);

Tailwind

colors: {
  custom: {
    50: '#758abc',
    500: '#305d9f',
    950: '#000000',
  },
}

SCSS

$custom: #305d9f;
$custom-light: #758abc;
$custom-dark: #000000;

JSON

{
  "hex": "#305d9f",
  "rgb": {
    "r": 48,
    "g": 93,
    "b": 159
  },
  "hsl": {
    "h": 215.676,
    "s": 53.623,
    "l": 40.588
  },
  "oklch": {
    "l": 0.48056,
    "c": 0.11775,
    "h": 258
  },
  "luminance": 0.1096
}

Semantic roles & 50–950 ramp

primary

#305D9F

secondary

#BD9D6E

accent

#A24BDD

background

#F7F8FB

surface

#EEF0F6

border

#C9CBD0

text

#090B12

muted

#7B7C81

Preview Lab

Preview with #305D9F

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

Preview Lab → · Contrast checker → · Palette generator →