#307D99#307D99

#307D99 is a mid, moderate cyan. Relative luminance 0.176; OKLCH L 55.4% C 0.086 H 225.7°. Best body text is #FFFFFF at 4.65:1 contrast (WCAG AA passes).

Color values

HEX	#307D99
RGB	rgb(48, 125, 153)
HSL	hsl(196, 52%, 39%)
HSV	hsv(196, 69%, 60%)
CMYK	cmyk(68.6%, 18.3%, 0%, 40%)
CIE-LAB	lab(49.00, -14.24, -21.97)
CIE-LCH	lch(49.00, 26.18, 237.04°)
OKLab	oklab(55.45% -0.0599 -0.0614)
OKLCH	oklch(55.45% 0.086 225.7)
XYZ	xyz(14.3000, 17.5940, 32.7732)
Luminance	0.1760 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#307D99 #994C30

analogous

#309981 #307D99 #304999

triadic

#307D99 #99307D #7D9930

tetradic

#307D99 #813099 #994C30 #499930

square

#307D99 #813099 #994C30 #499930

split-complementary

#307D99 #993049 #998130

monochromatic

#13313C #21576A #307D99 #42A1C4 #71B8D2

Accessibility & contrast

On white

4.65

#307D99 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.52

#307D99 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#FFFFFF on #307D99

4.65:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##307D99	#FFFFFF	#000000	##FFFFFF
##307D99	1.00	4.65	4.52	4.65
#FFFFFF	4.65	1.00	21.00	1.00
#000000	4.52	21.00	1.00	21.00
##FFFFFF	4.65	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#6E7A9A

Deuteranopia (green-blind)

#5F7099

Tritanopia (blue-blind)

#008586

Achromatopsia (no color)

#747474

Design tokens & code

CSS

--color: #307d99;
/* rgb */ color: rgb(48, 125, 153);
/* oklch */ color: oklch(55.4% 0.086 225.7);

Tailwind

colors: {
  custom: {
    50: '#75a2b7',
    500: '#307d99',
    950: '#000000',
  },
}

SCSS

$custom: #307d99;
$custom-light: #75a2b7;
$custom-dark: #000000;

JSON

{
  "hex": "#307d99",
  "rgb": {
    "r": 48,
    "g": 125,
    "b": 153
  },
  "hsl": {
    "h": 196,
    "s": 52.239,
    "l": 39.412
  },
  "oklch": {
    "l": 0.55445,
    "c": 0.08578,
    "h": 225.7
  },
  "luminance": 0.17596
}

Semantic roles & 50–950 ramp

primary

#307D99

secondary

#BA806B

accent

#724CDC

background

#F7FAFB

surface

#EEF3F6

border

#C9CDD0

text

#090F11

muted

#7B7F80

Preview Lab

Preview with #307D99

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

Preview Lab → · Contrast checker → · Palette generator →