#305AB0#305AB0

#305AB0 is a mid, vivid blue. Relative luminance 0.111; OKLCH L 48.5% C 0.145 H 262.7°. Best body text is #FFFFFF at 6.53:1 contrast (WCAG AA passes).

Color values

HEX	#305AB0
RGB	rgb(48, 90, 176)
HSL	hsl(220, 57%, 44%)
HSV	hsv(220, 73%, 69%)
CMYK	cmyk(72.7%, 48.9%, 0%, 31%)
CIE-LAB	lab(39.70, 15.57, -50.16)
CIE-LCH	lch(39.70, 52.52, 287.25°)
OKLab	oklab(48.55% -0.0185 -0.144)
OKLCH	oklch(48.55% 0.145 262.7)
XYZ	xyz(12.7088, 11.0739, 42.5336)
Luminance	0.1108 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#305AB0 #B08630

analogous

#309AB0 #305AB0 #4630B0

triadic

#305AB0 #B0305A #5AB030

tetradic

#305AB0 #B0309A #B08630 #30B046

square

#305AB0 #B0309A #B08630 #30B046

split-complementary

#305AB0 #B04630 #9AB030

monochromatic

#162950 #234180 #305AB0 #4E79CF #7E9DDC

Accessibility & contrast

On white

6.53

#305AB0 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.22

#305AB0 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #305AB0

6.53:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##305AB0	#FFFFFF	#000000	##FFFFFF
##305AB0	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)

#2A64B3

Deuteranopia (green-blind)

#0058AE

Tritanopia (blue-blind)

#006E7C

Achromatopsia (no color)

#5E5E5E

Design tokens & code

CSS

--color: #305ab0;
/* rgb */ color: rgb(48, 90, 176);
/* oklch */ color: oklch(48.5% 0.145 262.7);

Tailwind

colors: {
  custom: {
    50: '#7988c8',
    500: '#305ab0',
    950: '#000000',
  },
}

SCSS

$custom: #305ab0;
$custom-light: #7988c8;
$custom-dark: #000000;

JSON

{
  "hex": "#305ab0",
  "rgb": {
    "r": 48,
    "g": 90,
    "b": 176
  },
  "hsl": {
    "h": 220.313,
    "s": 57.143,
    "l": 43.922
  },
  "oklch": {
    "l": 0.48548,
    "c": 0.14516,
    "h": 262.7
  },
  "luminance": 0.11075
}

Semantic roles & 50–950 ramp

primary

#305AB0

secondary

#C5AB77

accent

#AE47E0

background

#F7F8FC

surface

#EEEFF8

border

#C9CAD1

text

#0A0B13

muted

#7C7C82

Preview Lab

Preview with #305AB0

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

Preview Lab → · Contrast checker → · Palette generator →