#307D9C#307D9C

#307D9C is a mid, moderate cyan. Relative luminance 0.177; OKLCH L 55.6% C 0.088 H 228.3°. Best body text is #FFFFFF at 4.63:1 contrast (WCAG AA passes).

Color values

HEX	#307D9C
RGB	rgb(48, 125, 156)
HSL	hsl(197, 53%, 40%)
HSV	hsv(197, 69%, 61%)
CMYK	cmyk(69.2%, 19.9%, 0%, 38.8%)
CIE-LAB	lab(49.12, -13.23, -23.53)
CIE-LCH	lch(49.12, 26.99, 240.66°)
OKLab	oklab(55.58% -0.0587 -0.0659)
OKLCH	oklch(55.58% 0.088 228.3)
XYZ	xyz(14.5509, 17.6943, 34.0945)
Luminance	0.1770 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#307D9C #9C4F30

analogous

#309C85 #307D9C #30479C

triadic

#307D9C #9C307D #7D9C30

tetradic

#307D9C #85309C #9C4F30 #479C30

square

#307D9C #85309C #9C4F30 #479C30

split-complementary

#307D9C #9C3047 #9C8530

monochromatic

#13323E #22586D #307D9C #44A0C5 #73B8D4

Accessibility & contrast

On white

4.63

#307D9C on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.54

#307D9C on #000000

AA ✓AA large ✓AAA ✗

Best text color

#FFFFFF on #307D9C

4.63:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##307D9C	#FFFFFF	#000000	##FFFFFF
##307D9C	1.00	4.63	4.54	4.63
#FFFFFF	4.63	1.00	21.00	1.00
#000000	4.54	21.00	1.00	21.00
##FFFFFF	4.63	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#6D7B9E

Deuteranopia (green-blind)

#5E709C

Tritanopia (blue-blind)

#008687

Achromatopsia (no color)

#757575

Design tokens & code

CSS

--color: #307d9c;
/* rgb */ color: rgb(48, 125, 156);
/* oklch */ color: oklch(55.6% 0.088 228.3);

Tailwind

colors: {
  custom: {
    50: '#76a2b9',
    500: '#307d9c',
    950: '#000000',
  },
}

SCSS

$custom: #307d9c;
$custom-light: #76a2b9;
$custom-dark: #000000;

JSON

{
  "hex": "#307d9c",
  "rgb": {
    "r": 48,
    "g": 125,
    "b": 156
  },
  "hsl": {
    "h": 197.222,
    "s": 52.941,
    "l": 40
  },
  "oklch": {
    "l": 0.55585,
    "c": 0.08825,
    "h": 228.3
  },
  "luminance": 0.17696
}

Semantic roles & 50–950 ramp

primary

#307D9C

secondary

#BC836C

accent

#754BDC

background

#F7FAFB

surface

#EEF3F6

border

#C9CDD0

text

#090F11

muted

#7B7F80

Preview Lab

Preview with #307D9C

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

Preview Lab → · Contrast checker → · Palette generator →