#305FB0#305FB0

#305FB0 is a mid, vivid blue. Relative luminance 0.119; OKLCH L 49.6% C 0.139 H 260.5°. Best body text is #FFFFFF at 6.20:1 contrast (WCAG AA passes).

Color values

HEX	#305FB0
RGB	rgb(48, 95, 176)
HSL	hsl(218, 57%, 44%)
HSV	hsv(218, 73%, 69%)
CMYK	cmyk(72.7%, 46%, 0%, 31%)
CIE-LAB	lab(41.13, 12.32, -47.87)
CIE-LCH	lch(41.13, 49.43, 284.43°)
OKLab	oklab(49.64% -0.023 -0.1371)
OKLCH	oklch(49.64% 0.139 260.5)
XYZ	xyz(13.1448, 11.9460, 42.6789)
Luminance	0.1195 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#305FB0 #B08130

analogous

#309FB0 #305FB0 #4130B0

triadic

#305FB0 #B0305F #5FB030

tetradic

#305FB0 #B0309F #B08130 #30B041

square

#305FB0 #B0309F #B08130 #30B041

split-complementary

#305FB0 #B04130 #9FB030

monochromatic

#162B50 #234580 #305FB0 #4E7ECF #7EA1DC

Accessibility & contrast

On white

6.20

#305FB0 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.39

#305FB0 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #305FB0

6.20:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##305FB0	#FFFFFF	#000000	##FFFFFF
##305FB0	1.00	6.20	3.39	6.20
#FFFFFF	6.20	1.00	21.00	1.00
#000000	3.39	21.00	1.00	21.00
##FFFFFF	6.20	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#3567B3

Deuteranopia (green-blind)

#1A5CAE

Tritanopia (blue-blind)

#00727F

Achromatopsia (no color)

#616161

Design tokens & code

CSS

--color: #305fb0;
/* rgb */ color: rgb(48, 95, 176);
/* oklch */ color: oklch(49.6% 0.139 260.5);

Tailwind

colors: {
  custom: {
    50: '#798bc8',
    500: '#305fb0',
    950: '#000000',
  },
}

SCSS

$custom: #305fb0;
$custom-light: #798bc8;
$custom-dark: #000000;

JSON

{
  "hex": "#305fb0",
  "rgb": {
    "r": 48,
    "g": 95,
    "b": 176
  },
  "hsl": {
    "h": 217.969,
    "s": 57.143,
    "l": 43.922
  },
  "oklch": {
    "l": 0.49642,
    "c": 0.13905,
    "h": 260.5
  },
  "luminance": 0.11947
}

Semantic roles & 50–950 ramp

primary

#305FB0

secondary

#C5A877

accent

#A847E0

background

#F7F8FC

surface

#EEF0F8

border

#C9CBD1

text

#0A0C13

muted

#7C7D82

Preview Lab

Preview with #305FB0

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

Preview Lab → · Contrast checker → · Palette generator →