#307DA3#307DA3

#307DA3 is a mid, moderate cyan. Relative luminance 0.179; OKLCH L 55.9% C 0.095 H 233.7°. Best body text is #000000 at 4.59:1 contrast (WCAG AA passes).

Color values

HEX	#307DA3
RGB	rgb(48, 125, 163)
HSL	hsl(200, 55%, 41%)
HSV	hsv(200, 71%, 64%)
CMYK	cmyk(70.6%, 23.3%, 0%, 36.1%)
CIE-LAB	lab(49.42, -10.82, -27.15)
CIE-LCH	lch(49.42, 29.23, 248.27°)
OKLab	oklab(55.92% -0.0561 -0.0763)
OKLCH	oklch(55.92% 0.095 233.7)
XYZ	xyz(15.1608, 17.9383, 37.3067)
Luminance	0.1794 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#307DA3 #A35630

analogous

#30A390 #307DA3 #3044A3

triadic

#307DA3 #A3307D #7DA330

tetradic

#307DA3 #9030A3 #A35630 #44A330

square

#307DA3 #9030A3 #A35630 #44A330

split-complementary

#307DA3 #A33044 #A39030

monochromatic

#143444 #225974 #307DA3 #479EC9 #77B7D7

Accessibility & contrast

On white

4.58

#307DA3 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.59

#307DA3 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #307DA3

4.59:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##307DA3	#FFFFFF	#000000	##000000
##307DA3	1.00	4.58	4.59	4.59
#FFFFFF	4.58	1.00	21.00	21.00
#000000	4.59	21.00	1.00	1.00
##000000	4.59	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#6A7CA5

Deuteranopia (green-blind)

#5B70A2

Tritanopia (blue-blind)

#00878A

Achromatopsia (no color)

#757575

Design tokens & code

CSS

--color: #307da3;
/* rgb */ color: rgb(48, 125, 163);
/* oklch */ color: oklch(55.9% 0.095 233.7);

Tailwind

colors: {
  custom: {
    50: '#77a2be',
    500: '#307da3',
    950: '#000000',
  },
}

SCSS

$custom: #307da3;
$custom-light: #77a2be;
$custom-dark: #000000;

JSON

{
  "hex": "#307da3",
  "rgb": {
    "r": 48,
    "g": 125,
    "b": 163
  },
  "hsl": {
    "h": 199.826,
    "s": 54.502,
    "l": 41.373
  },
  "oklch": {
    "l": 0.55921,
    "c": 0.0947,
    "h": 233.7
  },
  "luminance": 0.1794
}

Semantic roles & 50–950 ramp

primary

#307DA3

secondary

#BF8A70

accent

#7B4ADE

background

#F7F9FB

surface

#EEF2F6

border

#C9CCD0

text

#0A0F12

muted

#7C7E81

Preview Lab

Preview with #307DA3

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

Preview Lab → · Contrast checker → · Palette generator →