#306DB5#306DB5

#306DB5 is a mid, vivid cyan. Relative luminance 0.149; OKLCH L 53.1% C 0.130 H 254.4°. Best body text is #FFFFFF at 5.28:1 contrast (WCAG AA passes).

Color values

HEX	#306DB5
RGB	rgb(48, 109, 181)
HSL	hsl(212, 58%, 45%)
HSV	hsv(212, 73%, 71%)
CMYK	cmyk(73.5%, 39.8%, 0%, 29%)
CIE-LAB	lab(45.50, 5.28, -43.81)
CIE-LCH	lch(45.50, 44.13, 276.87°)
OKLab	oklab(53.12% -0.0348 -0.125)
OKLCH	oklch(53.12% 0.13 254.4)
XYZ	xyz(15.0250, 14.9002, 45.7913)
Luminance	0.1490 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#306DB5 #B57830

analogous

#30B0B5 #306DB5 #3530B5

triadic

#306DB5 #B5306D #6DB530

tetradic

#306DB5 #B530B0 #B57830 #30B535

square

#306DB5 #B530B0 #B57830 #30B535

split-complementary

#306DB5 #B53530 #B0B530

monochromatic

#163354 #235085 #306DB5 #518CD1 #82ACDE

Accessibility & contrast

On white

5.28

#306DB5 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.98

#306DB5 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #306DB5

5.28:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##306DB5	#FFFFFF	#000000	##FFFFFF
##306DB5	1.00	5.28	3.98	5.28
#FFFFFF	5.28	1.00	21.00	1.00
#000000	3.98	21.00	1.00	21.00
##FFFFFF	5.28	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#4B72B8

Deuteranopia (green-blind)

#3666B4

Tritanopia (blue-blind)

#007E88

Achromatopsia (no color)

#6C6C6C

Design tokens & code

CSS

--color: #306db5;
/* rgb */ color: rgb(48, 109, 181);
/* oklch */ color: oklch(53.1% 0.130 254.4);

Tailwind

colors: {
  custom: {
    50: '#7a96cb',
    500: '#306db5',
    950: '#000000',
  },
}

SCSS

$custom: #306db5;
$custom-light: #7a96cb;
$custom-dark: #000000;

JSON

{
  "hex": "#306db5",
  "rgb": {
    "r": 48,
    "g": 109,
    "b": 181
  },
  "hsl": {
    "h": 212.481,
    "s": 58.079,
    "l": 44.902
  },
  "oklch": {
    "l": 0.53121,
    "c": 0.12974,
    "h": 254.4
  },
  "luminance": 0.14902
}

Semantic roles & 50–950 ramp

primary

#306DB5

secondary

#C7A47A

accent

#9A46E1

background

#F8F9FC

surface

#EFF1F8

border

#CACBD1

text

#0A0D13

muted

#7C7E82

Preview Lab

Preview with #306DB5

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

Preview Lab → · Contrast checker → · Palette generator →