#306CBB#306CBB

#306CBB is a mid, vivid cyan. Relative luminance 0.149; OKLCH L 53.3% C 0.139 H 256.5°. Best body text is #FFFFFF at 5.27:1 contrast (WCAG AA passes).

Color values

HEX	#306CBB
RGB	rgb(48, 108, 187)
HSL	hsl(214, 59%, 46%)
HSV	hsv(214, 74%, 73%)
CMYK	cmyk(74.3%, 42.2%, 0%, 26.7%)
CIE-LAB	lab(45.55, 8.14, -47.21)
CIE-LCH	lch(45.55, 47.91, 279.79°)
OKLab	oklab(53.28% -0.0325 -0.135)
OKLCH	oklch(53.28% 0.139 256.5)
XYZ	xyz(15.5478, 14.9396, 49.0683)
Luminance	0.1494 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#306CBB #BB7F30

analogous

#30B1BB #306CBB #3A30BB

triadic

#306CBB #BB306C #6CBB30

tetradic

#306CBB #BB30B1 #BB7F30 #30BB3A

square

#306CBB #BB30B1 #BB7F30 #30BB3A

split-complementary

#306CBB #BB3A30 #B1BB30

monochromatic

#17345A #23508A #306CBB #558BD3 #86ADE0

Accessibility & contrast

On white

5.27

#306CBB on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.99

#306CBB on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #306CBB

5.27:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##306CBB	#FFFFFF	#000000	##FFFFFF
##306CBB	1.00	5.27	3.99	5.27
#FFFFFF	5.27	1.00	21.00	1.00
#000000	3.99	21.00	1.00	21.00
##FFFFFF	5.27	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#4673BE

Deuteranopia (green-blind)

#2D66B9

Tritanopia (blue-blind)

#007F8A

Achromatopsia (no color)

#6C6C6C

Design tokens & code

CSS

--color: #306cbb;
/* rgb */ color: rgb(48, 108, 187);
/* oklch */ color: oklch(53.3% 0.139 256.5);

Tailwind

colors: {
  custom: {
    50: '#7b95d0',
    500: '#306cbb',
    950: '#000000',
  },
}

SCSS

$custom: #306cbb;
$custom-light: #7b95d0;
$custom-dark: #000000;

JSON

{
  "hex": "#306cbb",
  "rgb": {
    "r": 48,
    "g": 108,
    "b": 187
  },
  "hsl": {
    "h": 214.101,
    "s": 59.149,
    "l": 46.078
  },
  "oklch": {
    "l": 0.53276,
    "c": 0.13885,
    "h": 256.5
  },
  "luminance": 0.14941
}

Semantic roles & 50–950 ramp

primary

#306CBB

secondary

#C9A97D

accent

#9F45E2

background

#F8F9FC

surface

#EFF1F9

border

#CACBD2

text

#0B0D14

muted

#7C7E82

Preview Lab

Preview with #306CBB

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

Preview Lab → · Contrast checker → · Palette generator →