#305BB6#305BB6

#305BB6 is a mid, vivid blue. Relative luminance 0.115; OKLCH L 49.2% C 0.152 H 263.0°. Best body text is #FFFFFF at 6.37:1 contrast (WCAG AA passes).

Color values

HEX	#305BB6
RGB	rgb(48, 91, 182)
HSL	hsl(221, 58%, 45%)
HSV	hsv(221, 74%, 71%)
CMYK	cmyk(73.6%, 50%, 0%, 28.6%)
CIE-LAB	lab(40.39, 17.18, -52.59)
CIE-LCH	lch(40.39, 55.32, 288.09°)
OKLab	oklab(49.2% -0.0186 -0.1511)
OKLCH	oklch(49.2% 0.152 263)
XYZ	xyz(13.4005, 11.4865, 45.7578)
Luminance	0.1149 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#305BB6 #B68B30

analogous

#309EB6 #305BB6 #4830B6

triadic

#305BB6 #B6305B #5BB630

tetradic

#305BB6 #B6309E #B68B30 #30B648

square

#305BB6 #B6309E #B68B30 #30B648

split-complementary

#305BB6 #B64830 #9EB630

monochromatic

#162B55 #234386 #305BB6 #527BD1 #82A0DE

Accessibility & contrast

On white

6.37

#305BB6 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.30

#305BB6 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #305BB6

6.37:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##305BB6	#FFFFFF	#000000	##FFFFFF
##305BB6	1.00	6.37	3.30	6.37
#FFFFFF	6.37	1.00	21.00	1.00
#000000	3.30	21.00	1.00	21.00
##FFFFFF	6.37	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2566B9

Deuteranopia (green-blind)

#0059B4

Tritanopia (blue-blind)

#007180

Achromatopsia (no color)

#5F5F5F

Design tokens & code

CSS

--color: #305bb6;
/* rgb */ color: rgb(48, 91, 182);
/* oklch */ color: oklch(49.2% 0.152 263.0);

Tailwind

colors: {
  custom: {
    50: '#7a88cc',
    500: '#305bb6',
    950: '#000000',
  },
}

SCSS

$custom: #305bb6;
$custom-light: #7a88cc;
$custom-dark: #000000;

JSON

{
  "hex": "#305bb6",
  "rgb": {
    "r": 48,
    "g": 91,
    "b": 182
  },
  "hsl": {
    "h": 220.746,
    "s": 58.261,
    "l": 45.098
  },
  "oklch": {
    "l": 0.49199,
    "c": 0.15224,
    "h": 263
  },
  "luminance": 0.11488
}

Semantic roles & 50–950 ramp

primary

#305BB6

secondary

#C7AF7B

accent

#B046E1

background

#F8F8FC

surface

#EFEFF9

border

#CACAD2

text

#0B0B13

muted

#7C7C82

Preview Lab

Preview with #305BB6

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

Preview Lab → · Contrast checker → · Palette generator →