#305AA4#305AA4

#305AA4 is a mid, vivid blue. Relative luminance 0.106; OKLCH L 47.7% C 0.128 H 260.8°. Best body text is #FFFFFF at 6.72:1 contrast (WCAG AA passes).

Color values

HEX	#305AA4
RGB	rgb(48, 90, 164)
HSL	hsl(218, 55%, 42%)
HSV	hsv(218, 71%, 64%)
CMYK	cmyk(70.7%, 45.1%, 0%, 35.7%)
CIE-LAB	lab(38.93, 11.05, -44.29)
CIE-LCH	lch(38.93, 45.65, 284.00°)
OKLab	oklab(47.71% -0.0205 -0.1267)
OKLCH	oklch(47.71% 0.128 260.8)
XYZ	xyz(11.5735, 10.6198, 36.5547)
Luminance	0.1062 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#305AA4 #A47A30

analogous

#3094A4 #305AA4 #4030A4

triadic

#305AA4 #A4305A #5AA430

tetradic

#305AA4 #A43094 #A47A30 #30A440

square

#305AA4 #A43094 #A47A30 #30A440

split-complementary

#305AA4 #A44030 #94A430

monochromatic

#142645 #224075 #305AA4 #4877C9 #779AD7

Accessibility & contrast

On white

6.72

#305AA4 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.12

#305AA4 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #305AA4

6.72:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##305AA4	#FFFFFF	#000000	##FFFFFF
##305AA4	1.00	6.72	3.12	6.72
#FFFFFF	6.72	1.00	21.00	1.00
#000000	3.12	21.00	1.00	21.00
##FFFFFF	6.72	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#3561A7

Deuteranopia (green-blind)

#2057A2

Tritanopia (blue-blind)

#006B77

Achromatopsia (no color)

#5C5C5C

Design tokens & code

CSS

--color: #305aa4;
/* rgb */ color: rgb(48, 90, 164);
/* oklch */ color: oklch(47.7% 0.128 260.8);

Tailwind

colors: {
  custom: {
    50: '#7688bf',
    500: '#305aa4',
    950: '#000000',
  },
}

SCSS

$custom: #305aa4;
$custom-light: #7688bf;
$custom-dark: #000000;

JSON

{
  "hex": "#305aa4",
  "rgb": {
    "r": 48,
    "g": 90,
    "b": 164
  },
  "hsl": {
    "h": 218.276,
    "s": 54.717,
    "l": 41.569
  },
  "oklch": {
    "l": 0.47707,
    "c": 0.12835,
    "h": 260.8
  },
  "luminance": 0.10621
}

Semantic roles & 50–950 ramp

primary

#305AA4

secondary

#BFA370

accent

#A84ADE

background

#F7F8FB

surface

#EEEFF7

border

#C9CAD0

text

#0A0B12

muted

#7C7C81

Preview Lab

Preview with #305AA4

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

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