#305AA3#305AA3

#305AA3 is a mid, vivid blue. Relative luminance 0.106; OKLCH L 47.6% C 0.127 H 260.6°. Best body text is #FFFFFF at 6.74:1 contrast (WCAG AA passes).

Color values

HEX	#305AA3
RGB	rgb(48, 90, 163)
HSL	hsl(218, 55%, 41%)
HSV	hsv(218, 71%, 64%)
CMYK	cmyk(70.6%, 44.8%, 0%, 36.1%)
CIE-LAB	lab(38.87, 10.67, -43.80)
CIE-LCH	lch(38.87, 45.08, 283.69°)
OKLab	oklab(47.64% -0.0207 -0.1252)
OKLCH	oklch(47.64% 0.127 260.6)
XYZ	xyz(11.4836, 10.5839, 36.0809)
Luminance	0.1058 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#305AA3 #A37930

analogous

#3094A3 #305AA3 #4030A3

triadic

#305AA3 #A3305A #5AA330

tetradic

#305AA3 #A33094 #A37930 #30A340

square

#305AA3 #A33094 #A37930 #30A340

split-complementary

#305AA3 #A34030 #94A330

monochromatic

#142644 #224074 #305AA3 #4777C9 #779AD7

Accessibility & contrast

On white

6.74

#305AA3 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.12

#305AA3 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #305AA3

6.74:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##305AA3	#FFFFFF	#000000	##FFFFFF
##305AA3	1.00	6.74	3.12	6.74
#FFFFFF	6.74	1.00	21.00	1.00
#000000	3.12	21.00	1.00	21.00
##FFFFFF	6.74	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#3661A6

Deuteranopia (green-blind)

#2157A2

Tritanopia (blue-blind)

#006B76

Achromatopsia (no color)

#5C5C5C

Design tokens & code

CSS

--color: #305aa3;
/* rgb */ color: rgb(48, 90, 163);
/* oklch */ color: oklch(47.6% 0.127 260.6);

Tailwind

colors: {
  custom: {
    50: '#7688bf',
    500: '#305aa3',
    950: '#000000',
  },
}

SCSS

$custom: #305aa3;
$custom-light: #7688bf;
$custom-dark: #000000;

JSON

{
  "hex": "#305aa3",
  "rgb": {
    "r": 48,
    "g": 90,
    "b": 163
  },
  "hsl": {
    "h": 218.087,
    "s": 54.502,
    "l": 41.373
  },
  "oklch": {
    "l": 0.47639,
    "c": 0.12694,
    "h": 260.6
  },
  "luminance": 0.10585
}

Semantic roles & 50–950 ramp

primary

#305AA3

secondary

#BFA270

accent

#A84ADE

background

#F7F8FB

surface

#EEEFF7

border

#C9CAD0

text

#0A0B12

muted

#7C7C81

Preview Lab

Preview with #305AA3

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

Preview Lab → · Contrast checker → · Palette generator →