#306CB4#306CB4

#306CB4 is a mid, vivid cyan. Relative luminance 0.146; OKLCH L 52.8% C 0.130 H 254.7°. Best body text is #FFFFFF at 5.34:1 contrast (WCAG AA passes).

Color values

HEX	#306CB4
RGB	rgb(48, 108, 180)
HSL	hsl(213, 58%, 45%)
HSV	hsv(213, 73%, 71%)
CMYK	cmyk(73.3%, 40%, 0%, 29.4%)
CIE-LAB	lab(45.15, 5.53, -43.79)
CIE-LCH	lch(45.15, 44.14, 277.20°)
OKLab	oklab(52.83% -0.0341 -0.1249)
OKLCH	oklch(52.83% 0.13 254.7)
XYZ	xyz(14.8167, 14.6471, 45.2175)
Luminance	0.1465 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#306CB4 #B47830

analogous

#30AEB4 #306CB4 #3630B4

triadic

#306CB4 #B4306C #6CB430

tetradic

#306CB4 #B430AE #B47830 #30B436

square

#306CB4 #B430AE #B47830 #30B436

split-complementary

#306CB4 #B43630 #AEB430

monochromatic

#163253 #234F84 #306CB4 #518BD1 #81ABDD

Accessibility & contrast

On white

5.34

#306CB4 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.93

#306CB4 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #306CB4

5.34:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##306CB4	#FFFFFF	#000000	##FFFFFF
##306CB4	1.00	5.34	3.93	5.34
#FFFFFF	5.34	1.00	21.00	1.00
#000000	3.93	21.00	1.00	21.00
##FFFFFF	5.34	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#4A71B7

Deuteranopia (green-blind)

#3565B3

Tritanopia (blue-blind)

#007D87

Achromatopsia (no color)

#6B6B6B

Design tokens & code

CSS

--color: #306cb4;
/* rgb */ color: rgb(48, 108, 180);
/* oklch */ color: oklch(52.8% 0.130 254.7);

Tailwind

colors: {
  custom: {
    50: '#7995cb',
    500: '#306cb4',
    950: '#000000',
  },
}

SCSS

$custom: #306cb4;
$custom-light: #7995cb;
$custom-dark: #000000;

JSON

{
  "hex": "#306cb4",
  "rgb": {
    "r": 48,
    "g": 108,
    "b": 180
  },
  "hsl": {
    "h": 212.727,
    "s": 57.895,
    "l": 44.706
  },
  "oklch": {
    "l": 0.5283,
    "c": 0.1295,
    "h": 254.7
  },
  "luminance": 0.14649
}

Semantic roles & 50–950 ramp

primary

#306CB4

secondary

#C6A379

accent

#9B47E1

background

#F8F9FC

surface

#EFF1F8

border

#CACBD1

text

#0A0D13

muted

#7C7E82

Preview Lab

Preview with #306CB4

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

Preview Lab → · Contrast checker → · Palette generator →