#306EB5#306EB5

#306EB5 is a mid, vivid cyan. Relative luminance 0.151; OKLCH L 53.3% C 0.129 H 253.9°. Best body text is #FFFFFF at 5.22:1 contrast (WCAG AA passes).

Color values

HEX	#306EB5
RGB	rgb(48, 110, 181)
HSL	hsl(212, 58%, 45%)
HSV	hsv(212, 73%, 71%)
CMYK	cmyk(73.5%, 39.2%, 0%, 29%)
CIE-LAB	lab(45.79, 4.65, -43.35)
CIE-LCH	lch(45.79, 43.60, 276.13°)
OKLab	oklab(53.35% -0.0357 -0.1236)
OKLCH	oklch(53.35% 0.129 253.9)
XYZ	xyz(15.1323, 15.1147, 45.8270)
Luminance	0.1512 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#306EB5 #B57730

analogous

#30B1B5 #306EB5 #3430B5

triadic

#306EB5 #B5306E #6EB530

tetradic

#306EB5 #B530B1 #B57730 #30B534

square

#306EB5 #B530B1 #B57730 #30B534

split-complementary

#306EB5 #B53430 #B1B530

monochromatic

#163354 #235185 #306EB5 #518DD1 #82ADDE

Accessibility & contrast

On white

5.22

#306EB5 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.02

#306EB5 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #306EB5

5.22:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##306EB5	#FFFFFF	#000000	##FFFFFF
##306EB5	1.00	5.22	4.02	5.22
#FFFFFF	5.22	1.00	21.00	1.00
#000000	4.02	21.00	1.00	21.00
##FFFFFF	5.22	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#4D73B8

Deuteranopia (green-blind)

#3867B4

Tritanopia (blue-blind)

#007F89

Achromatopsia (no color)

#6C6C6C

Design tokens & code

CSS

--color: #306eb5;
/* rgb */ color: rgb(48, 110, 181);
/* oklch */ color: oklch(53.3% 0.129 253.9);

Tailwind

colors: {
  custom: {
    50: '#7a97cb',
    500: '#306eb5',
    950: '#000000',
  },
}

SCSS

$custom: #306eb5;
$custom-light: #7a97cb;
$custom-dark: #000000;

JSON

{
  "hex": "#306eb5",
  "rgb": {
    "r": 48,
    "g": 110,
    "b": 181
  },
  "hsl": {
    "h": 212.03,
    "s": 58.079,
    "l": 44.902
  },
  "oklch": {
    "l": 0.5335,
    "c": 0.12866,
    "h": 253.9
  },
  "luminance": 0.15116
}

Semantic roles & 50–950 ramp

primary

#306EB5

secondary

#C7A37A

accent

#9946E1

background

#F8F9FC

surface

#EFF2F8

border

#CACCD1

text

#0A0D13

muted

#7C7E82

Preview Lab

Preview with #306EB5

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

Preview Lab → · Contrast checker → · Palette generator →