#305CBF#305CBF

#305CBF is a mid, vivid blue. Relative luminance 0.120; OKLCH L 50.1% C 0.163 H 263.6°. Best body text is #FFFFFF at 6.16:1 contrast (WCAG AA passes).

Color values

HEX	#305CBF
RGB	rgb(48, 92, 191)
HSL	hsl(222, 60%, 47%)
HSV	hsv(222, 75%, 75%)
CMYK	cmyk(74.9%, 51.8%, 0%, 25.1%)
CIE-LAB	lab(41.28, 19.92, -56.40)
CIE-LCH	lch(41.28, 59.81, 289.46°)
OKLab	oklab(50.08% -0.0183 -0.1623)
OKLCH	oklch(50.08% 0.163 263.6)
XYZ	xyz(14.4467, 12.0427, 50.8432)
Luminance	0.1204 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#305CBF #BF9330

analogous

#30A4BF #305CBF #4B30BF

triadic

#305CBF #BF305C #5CBF30

tetradic

#305CBF #BF30A4 #BF9330 #30BF4B

square

#305CBF #BF30A4 #BF9330 #30BF4B

split-complementary

#305CBF #BF4B30 #A4BF30

monochromatic

#172D5D #24448E #305CBF #577ED5 #88A4E1

Accessibility & contrast

On white

6.16

#305CBF on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.41

#305CBF on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #305CBF

6.16:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##305CBF	#FFFFFF	#000000	##FFFFFF
##305CBF	1.00	6.16	3.41	6.16
#FFFFFF	6.16	1.00	21.00	1.00
#000000	3.41	21.00	1.00	21.00
##FFFFFF	6.16	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#1A68C3

Deuteranopia (green-blind)

#005BBD

Tritanopia (blue-blind)

#007484

Achromatopsia (no color)

#616161

Design tokens & code

CSS

--color: #305cbf;
/* rgb */ color: rgb(48, 92, 191);
/* oklch */ color: oklch(50.1% 0.163 263.6);

Tailwind

colors: {
  custom: {
    50: '#7c89d3',
    500: '#305cbf',
    950: '#000000',
  },
}

SCSS

$custom: #305cbf;
$custom-light: #7c89d3;
$custom-dark: #000000;

JSON

{
  "hex": "#305cbf",
  "rgb": {
    "r": 48,
    "g": 92,
    "b": 191
  },
  "hsl": {
    "h": 221.538,
    "s": 59.833,
    "l": 46.863
  },
  "oklch": {
    "l": 0.50078,
    "c": 0.16332,
    "h": 263.6
  },
  "luminance": 0.12044
}

Semantic roles & 50–950 ramp

primary

#305CBF

secondary

#CBB480

accent

#B245E3

background

#F8F8FD

surface

#EFF0FA

border

#CACBD3

text

#0B0B14

muted

#7C7C83

Preview Lab

Preview with #305CBF

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

Preview Lab → · Contrast checker → · Palette generator →