#305DA8#305DA8

#305DA8 is a mid, vivid blue. Relative luminance 0.113; OKLCH L 48.7% C 0.130 H 260.0°. Best body text is #FFFFFF at 6.45:1 contrast (WCAG AA passes).

Color values

HEX	#305DA8
RGB	rgb(48, 93, 168)
HSL	hsl(218, 56%, 42%)
HSV	hsv(218, 71%, 66%)
CMYK	cmyk(71.4%, 44.6%, 0%, 34.1%)
CIE-LAB	lab(40.05, 10.60, -44.87)
CIE-LCH	lch(40.05, 46.11, 283.29°)
OKLab	oklab(48.65% -0.0226 -0.1284)
OKLCH	oklch(48.65% 0.13 260)
XYZ	xyz(12.1986, 11.2829, 38.5731)
Luminance	0.1128 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#305DA8 #A87B30

analogous

#3099A8 #305DA8 #3F30A8

triadic

#305DA8 #A8305D #5DA830

tetradic

#305DA8 #A83099 #A87B30 #30A83F

square

#305DA8 #A83099 #A87B30 #30A83F

split-complementary

#305DA8 #A83F30 #99A830

monochromatic

#152849 #224378 #305DA8 #4A7ACB #7A9DD9

Accessibility & contrast

On white

6.45

#305DA8 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.26

#305DA8 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #305DA8

6.45:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##305DA8	#FFFFFF	#000000	##FFFFFF
##305DA8	1.00	6.45	3.26	6.45
#FFFFFF	6.45	1.00	21.00	1.00
#000000	3.26	21.00	1.00	21.00
##FFFFFF	6.45	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#3864AB

Deuteranopia (green-blind)

#2259A6

Tritanopia (blue-blind)

#006E7A

Achromatopsia (no color)

#5E5E5E

Design tokens & code

CSS

--color: #305da8;
/* rgb */ color: rgb(48, 93, 168);
/* oklch */ color: oklch(48.7% 0.130 260.0);

Tailwind

colors: {
  custom: {
    50: '#778ac2',
    500: '#305da8',
    950: '#000000',
  },
}

SCSS

$custom: #305da8;
$custom-light: #778ac2;
$custom-dark: #000000;

JSON

{
  "hex": "#305da8",
  "rgb": {
    "r": 48,
    "g": 93,
    "b": 168
  },
  "hsl": {
    "h": 217.5,
    "s": 55.556,
    "l": 42.353
  },
  "oklch": {
    "l": 0.48651,
    "c": 0.13034,
    "h": 260
  },
  "luminance": 0.11284
}

Semantic roles & 50–950 ramp

primary

#305DA8

secondary

#C1A473

accent

#A749DF

background

#F7F8FC

surface

#EEF0F8

border

#C9CBD1

text

#0A0B12

muted

#7C7C81

Preview Lab

Preview with #305DA8

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

Preview Lab → · Contrast checker → · Palette generator →