#305BAC#305BAC

#305BAC is a mid, vivid blue. Relative luminance 0.111; OKLCH L 48.5% C 0.138 H 261.7°. Best body text is #FFFFFF at 6.53:1 contrast (WCAG AA passes).

Color values

HEX	#305BAC
RGB	rgb(48, 91, 172)
HSL	hsl(219, 56%, 43%)
HSV	hsv(219, 72%, 67%)
CMYK	cmyk(72.1%, 47.1%, 0%, 32.5%)
CIE-LAB	lab(39.73, 13.41, -47.76)
CIE-LCH	lch(39.73, 49.61, 285.68°)
OKLab	oklab(48.48% -0.02 -0.1369)
OKLCH	oklch(48.48% 0.138 261.7)
XYZ	xyz(12.4037, 11.0878, 40.5082)
Luminance	0.1109 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#305BAC #AC8130

analogous

#3099AC #305BAC #4330AC

triadic

#305BAC #AC305B #5BAC30

tetradic

#305BAC #AC3099 #AC8130 #30AC43

square

#305BAC #AC3099 #AC8130 #30AC43

split-complementary

#305BAC #AC4330 #99AC30

monochromatic

#15284C #23427C #305BAC #4C79CD #7C9DDA

Accessibility & contrast

On white

6.53

#305BAC on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.22

#305BAC on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #305BAC

6.53:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##305BAC	#FFFFFF	#000000	##FFFFFF
##305BAC	1.00	6.53	3.22	6.53
#FFFFFF	6.53	1.00	21.00	1.00
#000000	3.22	21.00	1.00	21.00
##FFFFFF	6.53	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#3064AF

Deuteranopia (green-blind)

#1458AA

Tritanopia (blue-blind)

#006E7B

Achromatopsia (no color)

#5E5E5E

Design tokens & code

CSS

--color: #305bac;
/* rgb */ color: rgb(48, 91, 172);
/* oklch */ color: oklch(48.5% 0.138 261.7);

Tailwind

colors: {
  custom: {
    50: '#7888c5',
    500: '#305bac',
    950: '#000000',
  },
}

SCSS

$custom: #305bac;
$custom-light: #7888c5;
$custom-dark: #000000;

JSON

{
  "hex": "#305bac",
  "rgb": {
    "r": 48,
    "g": 91,
    "b": 172
  },
  "hsl": {
    "h": 219.194,
    "s": 56.364,
    "l": 43.137
  },
  "oklch": {
    "l": 0.48482,
    "c": 0.13836,
    "h": 261.7
  },
  "luminance": 0.11089
}

Semantic roles & 50–950 ramp

primary

#305BAC

secondary

#C3A875

accent

#AB48E0

background

#F7F8FC

surface

#EEEFF8

border

#C9CAD1

text

#0A0B13

muted

#7C7C82

Preview Lab

Preview with #305BAC

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

Preview Lab → · Contrast checker → · Palette generator →