#306CC0#306CC0

#306CC0 is a mid, vivid blue. Relative luminance 0.152; OKLCH L 53.6% C 0.146 H 257.5°. Best body text is #FFFFFF at 5.21:1 contrast (WCAG AA passes).

Color values

HEX	#306CC0
RGB	rgb(48, 108, 192)
HSL	hsl(215, 60%, 47%)
HSV	hsv(215, 75%, 75%)
CMYK	cmyk(75%, 43.7%, 0%, 24.7%)
CIE-LAB	lab(45.85, 10.02, -49.63)
CIE-LCH	lch(45.85, 50.63, 281.41°)
OKLab	oklab(53.6% -0.0315 -0.1421)
OKLCH	oklch(53.6% 0.146 257.5)
XYZ	xyz(16.0924, 15.1575, 51.9365)
Luminance	0.1516 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#306CC0 #C08430

analogous

#30B4C0 #306CC0 #3C30C0

triadic

#306CC0 #C0306C #6CC030

tetradic

#306CC0 #C030B4 #C08430 #30C03C

square

#306CC0 #C030B4 #C08430 #30C03C

split-complementary

#306CC0 #C03C30 #B4C030

monochromatic

#18355E #24508F #306CC0 #588CD5 #89AEE1

Accessibility & contrast

On white

5.21

#306CC0 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.03

#306CC0 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #306CC0

5.21:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##306CC0	#FFFFFF	#000000	##FFFFFF
##306CC0	1.00	5.21	4.03	5.21
#FFFFFF	5.21	1.00	21.00	1.00
#000000	4.03	21.00	1.00	21.00
##FFFFFF	5.21	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#4274C3

Deuteranopia (green-blind)

#2666BE

Tritanopia (blue-blind)

#00808C

Achromatopsia (no color)

#6D6D6D

Design tokens & code

CSS

--color: #306cc0;
/* rgb */ color: rgb(48, 108, 192);
/* oklch */ color: oklch(53.6% 0.146 257.5);

Tailwind

colors: {
  custom: {
    50: '#7c95d3',
    500: '#306cc0',
    950: '#000000',
  },
}

SCSS

$custom: #306cc0;
$custom-light: #7c95d3;
$custom-dark: #000000;

JSON

{
  "hex": "#306cc0",
  "rgb": {
    "r": 48,
    "g": 108,
    "b": 192
  },
  "hsl": {
    "h": 215,
    "s": 60,
    "l": 47.059
  },
  "oklch": {
    "l": 0.53603,
    "c": 0.14554,
    "h": 257.5
  },
  "luminance": 0.15159
}

Semantic roles & 50–950 ramp

primary

#306CC0

secondary

#CBAC80

accent

#A145E3

background

#F8F9FD

surface

#EFF1FA

border

#CACBD3

text

#0B0D14

muted

#7C7E83

Preview Lab

Preview with #306CC0

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

Preview Lab → · Contrast checker → · Palette generator →