#306FB5#306FB5

#306FB5 is a mid, vivid cyan. Relative luminance 0.153; OKLCH L 53.6% C 0.128 H 253.3°. Best body text is #FFFFFF at 5.16:1 contrast (WCAG AA passes).

Color values

HEX	#306FB5
RGB	rgb(48, 111, 181)
HSL	hsl(212, 58%, 45%)
HSV	hsv(212, 73%, 71%)
CMYK	cmyk(73.5%, 38.7%, 0%, 29%)
CIE-LAB	lab(46.09, 4.03, -42.88)
CIE-LCH	lch(46.09, 43.07, 275.37°)
OKLab	oklab(53.58% -0.0367 -0.1222)
OKLCH	oklch(53.58% 0.128 253.3)
XYZ	xyz(15.2408, 15.3318, 45.8632)
Luminance	0.1533 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#306FB5 #B57630

analogous

#30B2B5 #306FB5 #3330B5

triadic

#306FB5 #B5306F #6FB530

tetradic

#306FB5 #B530B2 #B57630 #30B533

square

#306FB5 #B530B2 #B57630 #30B533

split-complementary

#306FB5 #B53330 #B2B530

monochromatic

#163454 #235185 #306FB5 #518ED1 #82ADDE

Accessibility & contrast

On white

5.16

#306FB5 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.07

#306FB5 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #306FB5

5.16:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##306FB5	#FFFFFF	#000000	##FFFFFF
##306FB5	1.00	5.16	4.07	5.16
#FFFFFF	5.16	1.00	21.00	1.00
#000000	4.07	21.00	1.00	21.00
##FFFFFF	5.16	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#4E74B8

Deuteranopia (green-blind)

#3A68B4

Tritanopia (blue-blind)

#007F89

Achromatopsia (no color)

#6D6D6D

Design tokens & code

CSS

--color: #306fb5;
/* rgb */ color: rgb(48, 111, 181);
/* oklch */ color: oklch(53.6% 0.128 253.3);

Tailwind

colors: {
  custom: {
    50: '#7a97cb',
    500: '#306fb5',
    950: '#000000',
  },
}

SCSS

$custom: #306fb5;
$custom-light: #7a97cb;
$custom-dark: #000000;

JSON

{
  "hex": "#306fb5",
  "rgb": {
    "r": 48,
    "g": 111,
    "b": 181
  },
  "hsl": {
    "h": 211.579,
    "s": 58.079,
    "l": 44.902
  },
  "oklch": {
    "l": 0.5358,
    "c": 0.12759,
    "h": 253.3
  },
  "luminance": 0.15333
}

Semantic roles & 50–950 ramp

primary

#306FB5

secondary

#C7A27A

accent

#9846E1

background

#F8F9FC

surface

#EFF2F8

border

#CACCD1

text

#0A0D13

muted

#7C7E82

Preview Lab

Preview with #306FB5

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

Preview Lab → · Contrast checker → · Palette generator →