#307BC0#307BC0

#307BC0 is a mid, vivid cyan. Relative luminance 0.186; OKLCH L 57.0% C 0.130 H 249.7°. Best body text is #000000 at 4.72:1 contrast (WCAG AA passes).

Color values

HEX	#307BC0
RGB	rgb(48, 123, 192)
HSL	hsl(209, 60%, 47%)
HSV	hsv(209, 75%, 75%)
CMYK	cmyk(75%, 35.9%, 0%, 24.7%)
CIE-LAB	lab(50.21, 0.73, -42.68)
CIE-LCH	lch(50.21, 42.69, 270.98°)
OKLab	oklab(57.01% -0.045 -0.1214)
OKLCH	oklch(57.01% 0.13 249.7)
XYZ	xyz(17.8127, 18.5980, 52.5099)
Luminance	0.1860 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#307BC0 #C07530

analogous

#30C0BD #307BC0 #3033C0

triadic

#307BC0 #C0307B #7BC030

tetradic

#307BC0 #BD30C0 #C07530 #33C030

square

#307BC0 #BD30C0 #C07530 #33C030

split-complementary

#307BC0 #C03033 #C0BD30

monochromatic

#183C5E #245C8F #307BC0 #5899D5 #89B7E1

Accessibility & contrast

On white

4.45

#307BC0 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.72

#307BC0 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #307BC0

4.72:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##307BC0	#FFFFFF	#000000	##000000
##307BC0	1.00	4.45	4.72	4.72
#FFFFFF	4.45	1.00	21.00	21.00
#000000	4.72	21.00	1.00	1.00
##000000	4.72	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#5B7FC3

Deuteranopia (green-blind)

#4671BF

Tritanopia (blue-blind)

#008B94

Achromatopsia (no color)

#777777

Design tokens & code

CSS

--color: #307bc0;
/* rgb */ color: rgb(48, 123, 192);
/* oklch */ color: oklch(57.0% 0.130 249.7);

Tailwind

colors: {
  custom: {
    50: '#7ca0d3',
    500: '#307bc0',
    950: '#000000',
  },
}

SCSS

$custom: #307bc0;
$custom-light: #7ca0d3;
$custom-dark: #000000;

JSON

{
  "hex": "#307bc0",
  "rgb": {
    "r": 48,
    "g": 123,
    "b": 192
  },
  "hsl": {
    "h": 208.75,
    "s": 60,
    "l": 47.059
  },
  "oklch": {
    "l": 0.57005,
    "c": 0.12951,
    "h": 249.7
  },
  "luminance": 0.186
}

Semantic roles & 50–950 ramp

primary

#307BC0

secondary

#CBA480

accent

#9145E3

background

#F8F9FD

surface

#EFF2FA

border

#CACCD3

text

#0B0E14

muted

#7C7E83

Preview Lab

Preview with #307BC0

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

Preview Lab → · Contrast checker → · Palette generator →