#306BB4#306BB4

#306BB4 is a mid, vivid cyan. Relative luminance 0.144; OKLCH L 52.6% C 0.131 H 255.3°. Best body text is #FFFFFF at 5.40:1 contrast (WCAG AA passes).

Color values

HEX	#306BB4
RGB	rgb(48, 107, 180)
HSL	hsl(213, 58%, 45%)
HSV	hsv(213, 73%, 71%)
CMYK	cmyk(73.3%, 40.6%, 0%, 29.4%)
CIE-LAB	lab(44.85, 6.16, -44.26)
CIE-LCH	lch(44.85, 44.68, 277.92°)
OKLab	oklab(52.6% -0.0332 -0.1263)
OKLCH	oklch(52.6% 0.131 255.3)
XYZ	xyz(14.7118, 14.4374, 45.1825)
Luminance	0.1444 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#306BB4 #B47930

analogous

#30ADB4 #306BB4 #3730B4

triadic

#306BB4 #B4306B #6BB430

tetradic

#306BB4 #B430AD #B47930 #30B437

square

#306BB4 #B430AD #B47930 #30B437

split-complementary

#306BB4 #B43730 #ADB430

monochromatic

#163253 #234E84 #306BB4 #518AD1 #81AADD

Accessibility & contrast

On white

5.40

#306BB4 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.89

#306BB4 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #306BB4

5.40:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##306BB4	#FFFFFF	#000000	##FFFFFF
##306BB4	1.00	5.40	3.89	5.40
#FFFFFF	5.40	1.00	21.00	1.00
#000000	3.89	21.00	1.00	21.00
##FFFFFF	5.40	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#4971B7

Deuteranopia (green-blind)

#3365B3

Tritanopia (blue-blind)

#007C87

Achromatopsia (no color)

#6A6A6A

Design tokens & code

CSS

--color: #306bb4;
/* rgb */ color: rgb(48, 107, 180);
/* oklch */ color: oklch(52.6% 0.131 255.3);

Tailwind

colors: {
  custom: {
    50: '#7994cb',
    500: '#306bb4',
    950: '#000000',
  },
}

SCSS

$custom: #306bb4;
$custom-light: #7994cb;
$custom-dark: #000000;

JSON

{
  "hex": "#306bb4",
  "rgb": {
    "r": 48,
    "g": 107,
    "b": 180
  },
  "hsl": {
    "h": 213.182,
    "s": 57.895,
    "l": 44.706
  },
  "oklch": {
    "l": 0.52602,
    "c": 0.1306,
    "h": 255.3
  },
  "luminance": 0.14439
}

Semantic roles & 50–950 ramp

primary

#306BB4

secondary

#C6A479

accent

#9C47E1

background

#F8F9FC

surface

#EFF1F8

border

#CACBD1

text

#0A0D13

muted

#7C7E82

Preview Lab

Preview with #306BB4

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

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