#305EB7#305EB7

#305EB7 is a mid, vivid blue. Relative luminance 0.121; OKLCH L 49.9% C 0.150 H 262.0°. Best body text is #FFFFFF at 6.16:1 contrast (WCAG AA passes).

Color values

HEX	#305EB7
RGB	rgb(48, 94, 183)
HSL	hsl(220, 58%, 45%)
HSV	hsv(220, 74%, 72%)
CMYK	cmyk(73.8%, 48.6%, 0%, 28.2%)
CIE-LAB	lab(41.30, 15.61, -51.71)
CIE-LCH	lch(41.30, 54.01, 286.80°)
OKLab	oklab(49.92% -0.021 -0.1484)
OKLCH	oklch(49.92% 0.15 262)
XYZ	xyz(13.7658, 12.0512, 46.3912)
Luminance	0.1205 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#305EB7 #B78930

analogous

#30A1B7 #305EB7 #4630B7

triadic

#305EB7 #B7305E #5EB730

tetradic

#305EB7 #B730A1 #B78930 #30B746

square

#305EB7 #B730A1 #B78930 #30B746

split-complementary

#305EB7 #B74630 #A1B730

monochromatic

#172C56 #234587 #305EB7 #527ED2 #83A2DE

Accessibility & contrast

On white

6.16

#305EB7 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.41

#305EB7 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #305EB7

6.16:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##305EB7	#FFFFFF	#000000	##FFFFFF
##305EB7	1.00	6.16	3.41	6.16
#FFFFFF	6.16	1.00	21.00	1.00
#000000	3.41	21.00	1.00	21.00
##FFFFFF	6.16	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2C68BA

Deuteranopia (green-blind)

#005CB5

Tritanopia (blue-blind)

#007382

Achromatopsia (no color)

#616161

Design tokens & code

CSS

--color: #305eb7;
/* rgb */ color: rgb(48, 94, 183);
/* oklch */ color: oklch(49.9% 0.150 262.0);

Tailwind

colors: {
  custom: {
    50: '#7a8bcd',
    500: '#305eb7',
    950: '#000000',
  },
}

SCSS

$custom: #305eb7;
$custom-light: #7a8bcd;
$custom-dark: #000000;

JSON

{
  "hex": "#305eb7",
  "rgb": {
    "r": 48,
    "g": 94,
    "b": 183
  },
  "hsl": {
    "h": 219.556,
    "s": 58.442,
    "l": 45.294
  },
  "oklch": {
    "l": 0.49915,
    "c": 0.14992,
    "h": 262
  },
  "luminance": 0.12053
}

Semantic roles & 50–950 ramp

primary

#305EB7

secondary

#C8AE7B

accent

#AD46E2

background

#F8F8FC

surface

#EFF0F9

border

#CACBD2

text

#0B0B13

muted

#7C7C82

Preview Lab

Preview with #305EB7

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

Preview Lab → · Contrast checker → · Palette generator →