#306DB4#306DB4

#306DB4 is a mid, vivid cyan. Relative luminance 0.149; OKLCH L 53.1% C 0.128 H 254.2°. Best body text is #FFFFFF at 5.29:1 contrast (WCAG AA passes).

Color values

HEX	#306DB4
RGB	rgb(48, 109, 180)
HSL	hsl(212, 58%, 45%)
HSV	hsv(212, 73%, 71%)
CMYK	cmyk(73.3%, 39.4%, 0%, 29.4%)
CIE-LAB	lab(45.44, 4.91, -43.32)
CIE-LCH	lch(45.44, 43.60, 276.46°)
OKLab	oklab(53.06% -0.035 -0.1235)
OKLCH	oklch(53.06% 0.128 254.2)
XYZ	xyz(14.9227, 14.8593, 45.2528)
Luminance	0.1486 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#306DB4 #B47730

analogous

#30AFB4 #306DB4 #3530B4

triadic

#306DB4 #B4306D #6DB430

tetradic

#306DB4 #B430AF #B47730 #30B435

square

#306DB4 #B430AF #B47730 #30B435

split-complementary

#306DB4 #B43530 #AFB430

monochromatic

#163253 #235084 #306DB4 #518CD1 #81ACDD

Accessibility & contrast

On white

5.29

#306DB4 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.97

#306DB4 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #306DB4

5.29:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##306DB4	#FFFFFF	#000000	##FFFFFF
##306DB4	1.00	5.29	3.97	5.29
#FFFFFF	5.29	1.00	21.00	1.00
#000000	3.97	21.00	1.00	21.00
##FFFFFF	5.29	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#4C72B7

Deuteranopia (green-blind)

#3766B3

Tritanopia (blue-blind)

#007E88

Achromatopsia (no color)

#6C6C6C

Design tokens & code

CSS

--color: #306db4;
/* rgb */ color: rgb(48, 109, 180);
/* oklch */ color: oklch(53.1% 0.128 254.2);

Tailwind

colors: {
  custom: {
    50: '#7996cb',
    500: '#306db4',
    950: '#000000',
  },
}

SCSS

$custom: #306db4;
$custom-light: #7996cb;
$custom-dark: #000000;

JSON

{
  "hex": "#306db4",
  "rgb": {
    "r": 48,
    "g": 109,
    "b": 180
  },
  "hsl": {
    "h": 212.273,
    "s": 57.895,
    "l": 44.706
  },
  "oklch": {
    "l": 0.53059,
    "c": 0.12842,
    "h": 254.2
  },
  "luminance": 0.14861
}

Semantic roles & 50–950 ramp

primary

#306DB4

secondary

#C6A379

accent

#9A47E1

background

#F8F9FC

surface

#EFF1F8

border

#CACBD1

text

#0A0D13

muted

#7C7E82

Preview Lab

Preview with #306DB4

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

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