#305FBF#305FBF

#305FBF is a mid, vivid blue. Relative luminance 0.126; OKLCH L 50.7% C 0.160 H 262.5°. Best body text is #FFFFFF at 5.97:1 contrast (WCAG AA passes).

Color values

HEX	#305FBF
RGB	rgb(48, 95, 191)
HSL	hsl(220, 60%, 47%)
HSV	hsv(220, 75%, 75%)
CMYK	cmyk(74.9%, 50.3%, 0%, 25.1%)
CIE-LAB	lab(42.11, 17.97, -55.06)
CIE-LCH	lch(42.11, 57.92, 288.08°)
OKLab	oklab(50.71% -0.0207 -0.1583)
OKLCH	oklch(50.71% 0.16 262.5)
XYZ	xyz(14.7117, 12.5728, 50.9315)
Luminance	0.1257 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#305FBF #BF9030

analogous

#30A7BF #305FBF #4930BF

triadic

#305FBF #BF305F #5FBF30

tetradic

#305FBF #BF30A7 #BF9030 #30BF49

square

#305FBF #BF30A7 #BF9030 #30BF49

split-complementary

#305FBF #BF4930 #A7BF30

monochromatic

#172E5D #24478E #305FBF #5781D5 #88A5E1

Accessibility & contrast

On white

5.97

#305FBF on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.51

#305FBF on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #305FBF

5.97:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##305FBF	#FFFFFF	#000000	##FFFFFF
##305FBF	1.00	5.97	3.51	5.97
#FFFFFF	5.97	1.00	21.00	1.00
#000000	3.51	21.00	1.00	21.00
##FFFFFF	5.97	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#256AC2

Deuteranopia (green-blind)

#005DBD

Tritanopia (blue-blind)

#007686

Achromatopsia (no color)

#636363

Design tokens & code

CSS

--color: #305fbf;
/* rgb */ color: rgb(48, 95, 191);
/* oklch */ color: oklch(50.7% 0.160 262.5);

Tailwind

colors: {
  custom: {
    50: '#7c8bd3',
    500: '#305fbf',
    950: '#000000',
  },
}

SCSS

$custom: #305fbf;
$custom-light: #7c8bd3;
$custom-dark: #000000;

JSON

{
  "hex": "#305fbf",
  "rgb": {
    "r": 48,
    "g": 95,
    "b": 191
  },
  "hsl": {
    "h": 220.28,
    "s": 59.833,
    "l": 46.863
  },
  "oklch": {
    "l": 0.50709,
    "c": 0.15965,
    "h": 262.5
  },
  "luminance": 0.12574
}

Semantic roles & 50–950 ramp

primary

#305FBF

secondary

#CBB280

accent

#AF45E3

background

#F8F8FD

surface

#EFF0FA

border

#CACBD3

text

#0B0C14

muted

#7C7D83

Preview Lab

Preview with #305FBF

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

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