#305CAB#305CAB

#305CAB is a mid, vivid blue. Relative luminance 0.112; OKLCH L 48.6% C 0.136 H 261.1°. Best body text is #FFFFFF at 6.47:1 contrast (WCAG AA passes).

Color values

HEX	#305CAB
RGB	rgb(48, 92, 171)
HSL	hsl(219, 56%, 43%)
HSV	hsv(219, 72%, 67%)
CMYK	cmyk(71.9%, 46.2%, 0%, 32.9%)
CIE-LAB	lab(39.95, 12.38, -46.81)
CIE-LCH	lch(39.95, 48.42, 284.81°)
OKLab	oklab(48.63% -0.0211 -0.1341)
OKLCH	oklch(48.63% 0.136 261.1)
XYZ	xyz(12.3941, 11.2216, 40.0330)
Luminance	0.1122 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#305CAB #AB7F30

analogous

#3099AB #305CAB #4230AB

triadic

#305CAB #AB305C #5CAB30

tetradic

#305CAB #AB3099 #AB7F30 #30AB42

square

#305CAB #AB3099 #AB7F30 #30AB42

split-complementary

#305CAB #AB4230 #99AB30

monochromatic

#15294B #23427B #305CAB #4C7ACD #7B9DDA

Accessibility & contrast

On white

6.47

#305CAB on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.24

#305CAB on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #305CAB

6.47:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##305CAB	#FFFFFF	#000000	##FFFFFF
##305CAB	1.00	6.47	3.24	6.47
#FFFFFF	6.47	1.00	21.00	1.00
#000000	3.24	21.00	1.00	21.00
##FFFFFF	6.47	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#3464AE

Deuteranopia (green-blind)

#1A59A9

Tritanopia (blue-blind)

#006E7B

Achromatopsia (no color)

#5E5E5E

Design tokens & code

CSS

--color: #305cab;
/* rgb */ color: rgb(48, 92, 171);
/* oklch */ color: oklch(48.6% 0.136 261.1);

Tailwind

colors: {
  custom: {
    50: '#7889c4',
    500: '#305cab',
    950: '#000000',
  },
}

SCSS

$custom: #305cab;
$custom-light: #7889c4;
$custom-dark: #000000;

JSON

{
  "hex": "#305cab",
  "rgb": {
    "r": 48,
    "g": 92,
    "b": 171
  },
  "hsl": {
    "h": 218.537,
    "s": 56.164,
    "l": 42.941
  },
  "oklch": {
    "l": 0.48633,
    "c": 0.13574,
    "h": 261.1
  },
  "luminance": 0.11223
}

Semantic roles & 50–950 ramp

primary

#305CAB

secondary

#C3A774

accent

#A948DF

background

#F7F8FC

surface

#EEF0F8

border

#C9CBD1

text

#0A0B13

muted

#7C7C82

Preview Lab

Preview with #305CAB

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

Preview Lab → · Contrast checker → · Palette generator →