#306DB3#306DB3

#306DB3 is a mid, vivid cyan. Relative luminance 0.148; OKLCH L 53.0% C 0.127 H 253.9°. Best body text is #FFFFFF at 5.30:1 contrast (WCAG AA passes).

Color values

HEX	#306DB3
RGB	rgb(48, 109, 179)
HSL	hsl(212, 58%, 45%)
HSV	hsv(212, 73%, 70%)
CMYK	cmyk(73.2%, 39.1%, 0%, 29.8%)
CIE-LAB	lab(45.38, 4.53, -42.83)
CIE-LCH	lch(45.38, 43.07, 276.04°)
OKLab	oklab(53% -0.0353 -0.1221)
OKLCH	oklch(53% 0.127 253.9)
XYZ	xyz(14.8212, 14.8187, 44.7183)
Luminance	0.1482 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#306DB3 #B37630

analogous

#30AFB3 #306DB3 #3530B3

triadic

#306DB3 #B3306D #6DB330

tetradic

#306DB3 #B330AF #B37630 #30B335

square

#306DB3 #B330AF #B37630 #30B335

split-complementary

#306DB3 #B33530 #AFB330

monochromatic

#163252 #235083 #306DB3 #508CD0 #80ACDD

Accessibility & contrast

On white

5.30

#306DB3 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.96

#306DB3 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #306DB3

5.30:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##306DB3	#FFFFFF	#000000	##FFFFFF
##306DB3	1.00	5.30	3.96	5.30
#FFFFFF	5.30	1.00	21.00	1.00
#000000	3.96	21.00	1.00	21.00
##FFFFFF	5.30	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#4C72B6

Deuteranopia (green-blind)

#3866B2

Tritanopia (blue-blind)

#007D87

Achromatopsia (no color)

#6B6B6B

Design tokens & code

CSS

--color: #306db3;
/* rgb */ color: rgb(48, 109, 179);
/* oklch */ color: oklch(53.0% 0.127 253.9);

Tailwind

colors: {
  custom: {
    50: '#7996ca',
    500: '#306db3',
    950: '#000000',
  },
}

SCSS

$custom: #306db3;
$custom-light: #7996ca;
$custom-dark: #000000;

JSON

{
  "hex": "#306db3",
  "rgb": {
    "r": 48,
    "g": 109,
    "b": 179
  },
  "hsl": {
    "h": 212.061,
    "s": 57.709,
    "l": 44.51
  },
  "oklch": {
    "l": 0.52997,
    "c": 0.12709,
    "h": 253.9
  },
  "luminance": 0.1482
}

Semantic roles & 50–950 ramp

primary

#306DB3

secondary

#C6A279

accent

#9947E1

background

#F7F9FC

surface

#EEF1F8

border

#C9CBD1

text

#0A0D13

muted

#7C7E82

Preview Lab

Preview with #306DB3

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

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