#306AC9#306AC9

#306AC9 is a mid, vivid blue. Relative luminance 0.152; OKLCH L 53.8% C 0.160 H 259.8°. Best body text is #FFFFFF at 5.21:1 contrast (WCAG AA passes).

Color values

HEX	#306AC9
RGB	rgb(48, 106, 201)
HSL	hsl(217, 61%, 49%)
HSV	hsv(217, 76%, 79%)
CMYK	cmyk(76.1%, 47.3%, 0%, 21.2%)
CIE-LAB	lab(45.84, 14.67, -54.83)
CIE-LCH	lch(45.84, 56.76, 284.98°)
OKLab	oklab(53.78% -0.0282 -0.1574)
OKLCH	oklch(53.78% 0.16 259.8)
XYZ	xyz(16.9117, 15.1516, 57.2803)
Luminance	0.1515 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#306AC9 #C98F30

analogous

#30B7C9 #306AC9 #4330C9

triadic

#306AC9 #C9306A #6AC930

tetradic

#306AC9 #C930B7 #C98F30 #30C943

square

#306AC9 #C930B7 #C98F30 #30C943

split-complementary

#306AC9 #C94330 #B7C930

monochromatic

#183666 #245098 #306AC9 #5E8CD8 #8FAFE4

Accessibility & contrast

On white

5.21

#306AC9 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.03

#306AC9 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #306AC9

5.21:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##306AC9	#FFFFFF	#000000	##FFFFFF
##306AC9	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)

#3674CD

Deuteranopia (green-blind)

#0666C7

Tritanopia (blue-blind)

#008190

Achromatopsia (no color)

#6D6D6D

Design tokens & code

CSS

--color: #306ac9;
/* rgb */ color: rgb(48, 106, 201);
/* oklch */ color: oklch(53.8% 0.160 259.8);

Tailwind

colors: {
  custom: {
    50: '#7e94da',
    500: '#306ac9',
    950: '#000000',
  },
}

SCSS

$custom: #306ac9;
$custom-light: #7e94da;
$custom-dark: #000000;

JSON

{
  "hex": "#306ac9",
  "rgb": {
    "r": 48,
    "g": 106,
    "b": 201
  },
  "hsl": {
    "h": 217.255,
    "s": 61.446,
    "l": 48.824
  },
  "oklch": {
    "l": 0.53776,
    "c": 0.15993,
    "h": 259.8
  },
  "luminance": 0.15153
}

Semantic roles & 50–950 ramp

primary

#306AC9

secondary

#CFB386

accent

#A743E5

background

#F8F9FD

surface

#EFF1FB

border

#CACBD4

text

#0B0D15

muted

#7C7E83

Preview Lab

Preview with #306AC9

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

Preview Lab → · Contrast checker → · Palette generator →