#307BBD#307BBD

#307BBD is a mid, vivid cyan. Relative luminance 0.185; OKLCH L 56.8% C 0.126 H 248.6°. Best body text is #000000 at 4.69:1 contrast (WCAG AA passes).

Color values

HEX	#307BBD
RGB	rgb(48, 123, 189)
HSL	hsl(208, 59%, 46%)
HSV	hsv(208, 75%, 74%)
CMYK	cmyk(74.6%, 34.9%, 0%, 25.9%)
CIE-LAB	lab(50.06, -0.37, -41.20)
CIE-LCH	lch(50.06, 41.21, 269.49°)
OKLab	oklab(56.83% -0.0458 -0.1171)
OKLCH	oklch(56.83% 0.126 248.6)
XYZ	xyz(17.4837, 18.4664, 50.7772)
Luminance	0.1847 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#307BBD #BD7230

analogous

#30BDB9 #307BBD #3035BD

triadic

#307BBD #BD307B #7BBD30

tetradic

#307BBD #B930BD #BD7230 #35BD30

square

#307BBD #B930BD #BD7230 #35BD30

split-complementary

#307BBD #BD3035 #BDB930

monochromatic

#173B5B #245B8C #307BBD #5699D4 #87B7E0

Accessibility & contrast

On white

4.47

#307BBD on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.69

#307BBD on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #307BBD

4.69:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##307BBD	#FFFFFF	#000000	##000000
##307BBD	1.00	4.47	4.69	4.69
#FFFFFF	4.47	1.00	21.00	21.00
#000000	4.69	21.00	1.00	1.00
##000000	4.69	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#5D7EC0

Deuteranopia (green-blind)

#4871BC

Tritanopia (blue-blind)

#008B93

Achromatopsia (no color)

#777777

Design tokens & code

CSS

--color: #307bbd;
/* rgb */ color: rgb(48, 123, 189);
/* oklch */ color: oklch(56.8% 0.126 248.6);

Tailwind

colors: {
  custom: {
    50: '#7ba0d1',
    500: '#307bbd',
    950: '#000000',
  },
}

SCSS

$custom: #307bbd;
$custom-light: #7ba0d1;
$custom-dark: #000000;

JSON

{
  "hex": "#307bbd",
  "rgb": {
    "r": 48,
    "g": 123,
    "b": 189
  },
  "hsl": {
    "h": 208.085,
    "s": 59.494,
    "l": 46.471
  },
  "oklch": {
    "l": 0.56831,
    "c": 0.12577,
    "h": 248.6
  },
  "luminance": 0.18468
}

Semantic roles & 50–950 ramp

primary

#307BBD

secondary

#CAA27F

accent

#8F45E3

background

#F8F9FC

surface

#EFF2F9

border

#CACCD2

text

#0B0E14

muted

#7C7E82

Preview Lab

Preview with #307BBD

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

Preview Lab → · Contrast checker → · Palette generator →